Re: Block Universes
On Saturday, February 8, 2014 7:26:45 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 6:06:17 AM UTC, Brent wrote: On 2/7/2014 9:50 PM, ghi...@gmail.com wrote: But the question then remains the same, and the process of dealing with it doesn't change in principle either. We would keep looking for ways to deal with the problems that keep the steer on the goal which is best efforts to see a sense, starting general, that edgar's insight can be true. What is Edgar's insight? Can you explain it? All I've seen is that observers at the same event are at the same place and time - which is trivially the meaning of at the same event. His other insight, that distance relations are not fundamental but are derived from some kind of alignment of frames, sounds more interesting. Many people have noticed that you can define space just by sending light signals between observers with clocks, which is a way of aligning the clocks so they define and inertial frame. Brent I strongly doubt I'm the best person to be saying what his insight is. What I'm trying to contribute is more an outline method aligned with goals and making explicit what's already implicit anyway. I have stuck with p-time because that's the simplest thing that he himself seems to offer as the make or break insight his whole theory stands or falls on. I hadn't even picked up the insight you just mentioned. If you think that's more interesting, go with that for sure, no problem. I don't even understand that one clearly. So I'll answer your question 'what is his insight' in terms of p-time but only because I feel better equipped to speak of that one. The answer is, the good news of following a method like I suggest, is that it takes the meaning right out of his hands, eliminating the anyway unrealistic dependence that we manage to align with whatever is actually in his head. All we need is the minimum indivisible core of some sense a universal 'now' could be true. Really, it doesn't have to be edgar's idea of either universal, or 'now' or even be about time in the end. So long as we build everything we are doing, for edgar, with edgar, in terms of edgar, in at the level of method, which we can do by basically enshrining the principle we help the guy the best way for this to work out well for him. Translating to a principle of seeking the strongest sense his idea can be true, which includes within that all senses of how it might be made true, including removing dependencies he happens to believe are built in but which we in fact discover can be totally decoupled. That's my best guess for your answer. Final word from me: The only new distinction I'm proposing that isn't already what Edgar is saying and not already a 'fact on the ground' given so much time is already being given to this, is that we seek to formalize things a little bit by getting clear, what is already effectively in play, and seeking to reinforce whatever that is by some basic principles that can be enshrined in method because that's the generally accepted best way to ensure on-going consistency. The outcome I have proposed assumes the goal is sort of, positive in the extreme, and everything else rolls from that. But another totally legitimate outcome would be that having stopped to collectively think about this, people throw up their arms and say what the fuck are we doing giving all this freakin' attention to such an undeserving idea that is clearly totally screwy and wrong. That would be perfectly legitimate too. If the garbage needs to be taken out and the collective insight is that is Edgar and his ideas, then it's best for him too that he can know that cleanly and make his own mind up the merits on which it was based, and keep open for himself that he focuses on searching for a fairer bunch of folk to get his idea considered. That's fine. I can definitely vouch for that outcome as totally in the gift of any group of people to decide. What I personally couldn't vouch for and wouldn't feel good about in the fulsomeness of reflection, would be if that had been the built in implicit decision, in effect by the way things were actually done on the ground. But that was never fully realized by either side him or the collective. For him that could be really bad. That could be like, being left totally burned out by the process and walking away from his idea forever, when actually that outcome and kind of been an realized given from the start. Not purposefully - that is not necessary at all for that to be the real intention at the level of the METHOD. The method is objectively real, and it is always there whether it's realized or not. It's objective in that sense. If it isn't explicit worked through, then it's just the whatever was most repeating and most long term influential in the carcrash of what happened. -- You received this
Re: Block Universes
I think Edgar's basic idea is that there is a plane of simultaneity which sweeps through space-time, and that all events in space time intersect with it - for example an astronaut moving at 0.9c will be intersecting it at the same time as his twin on Earth, but intersecting it at an angle that means his clock runs at a different rate. Or something like that. This hyperplane appears to be the rest frame of the CMBR (probably) and orthogonal to the expansion of the universe in 5 dimensions, ignoring the bumpy bits. On 8 February 2014 20:59, ghib...@gmail.com wrote: On Saturday, February 8, 2014 7:26:45 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 6:06:17 AM UTC, Brent wrote: On 2/7/2014 9:50 PM, ghi...@gmail.com wrote: But the question then remains the same, and the process of dealing with it doesn't change in principle either. We would keep looking for ways to deal with the problems that keep the steer on the goal which is best efforts to see a sense, starting general, that edgar's insight can be true. What is Edgar's insight? Can you explain it? All I've seen is that observers at the same event are at the same place and time - which is trivially the meaning of at the same event. His other insight, that distance relations are not fundamental but are derived from some kind of alignment of frames, sounds more interesting. Many people have noticed that you can define space just by sending light signals between observers with clocks, which is a way of aligning the clocks so they define and inertial frame. Brent I strongly doubt I'm the best person to be saying what his insight is. What I'm trying to contribute is more an outline method aligned with goals and making explicit what's already implicit anyway. I have stuck with p-time because that's the simplest thing that he himself seems to offer as the make or break insight his whole theory stands or falls on. I hadn't even picked up the insight you just mentioned. If you think that's more interesting, go with that for sure, no problem. I don't even understand that one clearly. So I'll answer your question 'what is his insight' in terms of p-time but only because I feel better equipped to speak of that one. The answer is, the good news of following a method like I suggest, is that it takes the meaning right out of his hands, eliminating the anyway unrealistic dependence that we manage to align with whatever is actually in his head. All we need is the minimum indivisible core of some sense a universal 'now' could be true. Really, it doesn't have to be edgar's idea of either universal, or 'now' or even be about time in the end. So long as we build everything we are doing, for edgar, with edgar, in terms of edgar, in at the level of method, which we can do by basically enshrining the principle we help the guy the best way for this to work out well for him. Translating to a principle of seeking the strongest sense his idea can be true, which includes within that all senses of how it might be made true, including removing dependencies he happens to believe are built in but which we in fact discover can be totally decoupled. That's my best guess for your answer. Final word from me: The only new distinction I'm proposing that isn't already what Edgar is saying and not already a 'fact on the ground' given so much time is already being given to this, is that we seek to formalize things a little bit by getting clear, what is already effectively in play, and seeking to reinforce whatever that is by some basic principles that can be enshrined in method because that's the generally accepted best way to ensure on-going consistency. The outcome I have proposed assumes the goal is sort of, positive in the extreme, and everything else rolls from that. But another totally legitimate outcome would be that having stopped to collectively think about this, people throw up their arms and say what the fuck are we doing giving all this freakin' attention to such an undeserving idea that is clearly totally screwy and wrong. That would be perfectly legitimate too. If the garbage needs to be taken out and the collective insight is that is Edgar and his ideas, then it's best for him too that he can know that cleanly and make his own mind up the merits on which it was based, and keep open for himself that he focuses on searching for a fairer bunch of folk to get his idea considered. That's fine. I can definitely vouch for that outcome as totally in the gift of any group of people to decide. What I personally couldn't vouch for and wouldn't feel good about in the fulsomeness of reflection, would be if that had been the built in implicit decision, in effect by the way things were actually done on the ground. But that was never fully realized by either side him or the collective. For him that could be really bad. That could be like, being left totally burned out by the process and
Re: Better Than the Chinese Room
On 07 Feb 2014, at 19:03, John Clark wrote: On Tue, Feb 4, 2014 at 5:53 AM, Bruno Marchal marc...@ulb.ac.be wrote: Computation is 3p, and consciousness is 1p, and no 1p thing can be a 3p thing. Sure it can. There is no consistent definition of p ? What is inconsistent with the definition of 3p and 1p given in UDA? What is inconsistent with the definition of 3p and 1p given in the Arithmetical UDA (AUDA)? so 3p can be anything as can 1p. ? Even if there were non consistent definition of A and B, it would not follow that A can be equal to B. (there is no consistent definition of consciousness and there is no consistent definition of God does not imply that consciousness = god, for example). And I'm still waiting for somebody to explain to me why if intelligent behavior (which can be detected objectively) and consciousness (which can only be observed subjectively) can be totally separated why did random mutation and natural selection bother to invent consciousness? An epiphenomenalist would say that consciousness is just a necessary side effect of intelligence. But I don't follow this: it is a phenomena having some role, I would say, and so evolution is just not a problem. To be sure, I let this epiphenomena/phenomena question open until I explain a bit more what happens in arithmetic more closely, to avoid a vocabulary discussion. And I know for a fact that Evolution did produce consciousness at least once, and perhaps many times. I doubt that is a fact. Evolution might (and probably have) just makes it possible for consciousness, which would be in arithmetic, to be manifested through persons in the relative way. Again, that is not crucially important, for the question above. Bruno John K Clark -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Unput and Onput
On 07 Feb 2014, at 17:59, Craig Weinberg wrote: On Friday, February 7, 2014 11:52:24 AM UTC-5, Bruno Marchal wrote: On 06 Feb 2014, at 19:50, meekerdb wrote: On 2/6/2014 8:22 AM, Bruno Marchal wrote: Yes. But it is not a back and forth. It just happen that when machine looks inward, and stay honest with herself, she cannot avoid some private transcendence. It is a theorem of arithmetic, with standard definition for transcendence. I think the standard definition is beyond normal experience, but I think you mean true but unprovable. True and unprovable is only G* minus G. But the private transcendence is a more complex phenomenon in which Z* minus Z and X* minus X participate. But even if you take transcendent to mean ineffable I don't see how arithmetic is going to pick out the qualia of experience as ineffable. The hope is that X1* is a quantum logic à la John Bell (the logician, not the physicist), already used to model a notion of qualia, by proximity relations on perceptible fields. There are infinitely many true but unprovable propositions. Why are the qualia we experience the ones that they are and not some others? Because the one that they are probably maximizes the probability to eat, and minimizes the probability to be eaten. That just makes it the qualia of the gaps. That would be the case if the question was why qualia?, and not why this or that qualia? as Brent was asking. The qualia itself should be explained by the logic of one of the hypostases (X1*). Bruno You can't negatively assert positive identities like blue or itchy. Neither one would minimize or maximize anything inherently. If they had an implicit function like that, then there would be no reason for them anyhow as a regular quantitative value could be used instead. We don't live in a universe where qualia appears wherever a function implies that it would be convenient. Craig Insects color qualia are probably quite different, because it is driven by the sexual strategy of plants. Bruno Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com. To post to this group, send email to everyth...@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Unput and Onput
On 07 Feb 2014, at 20:17, Craig Weinberg wrote: On Friday, February 7, 2014 12:33:07 PM UTC-5, Bruno Marchal wrote: On 06 Feb 2014, at 20:54, Craig Weinberg wrote: On Thursday, February 6, 2014 11:22:24 AM UTC-5, Bruno Marchal wrote: On 05 Feb 2014, at 20:29, Craig Weinberg wrote: On Wednesday, February 5, 2014 12:53:56 PM UTC-5, Bruno Marchal wrote: On 05 Feb 2014, at 13:49, Craig Weinberg wrote: On Wednesday, February 5, 2014 4:37:39 AM UTC-5, Bruno Marchal wrote: On 04 Feb 2014, at 18:07, Craig Weinberg wrote: Numbers can be derived from sensible physics That is a claim often done, but nobody has ever succeed without assuming Turing universality (and thus the numbers) in their description of physics. Turing universality can just be a property of physics, like density or mass. That is close to just nonsense (but I agree that some notorious physicists are attracted to this, but they don't convince me). Can you explain why? Because Turing universality is a mathematical notion. It has nothing to do with physics. But physics can implement them, and that notion is not that obvious. How do you know it has nothing to do with physics? Because the paper convinced me, and this by assuming the most elementary mathematic. No reference at all to anything physical is mentioned. Turing's model *looks like* a sort of physical device, but that's only part of Turing's pedagogy. Turing machine are mathematical objects, and they can be defined in arithmetic. That's great for you but it may as well be The Bible showed me the light to me. Nothing physical is mentioned, but that does not mean that the concepts could have arisen in the first place without the presence of physical objects as inspiration. I understand completely that a Turing machine is an abstraction, but the principles which are beneath that abstraction require that theoretical features behave in particular ways. The Turing machine needs to be constructed of reliable, emotionless, untiring, undistractable, semi- permanent units. There can be no fluid or imaginative components, no free intentions or personal preferences. The Turing machine is a structure sculpted of hyper-earth, not fire, water, air, or ether. Proof? Certainly it seems more plausible to me that Turing universality supervenes on a common language of physical unity and unit- plurality than it does that the flavor of a tangerine supervenes on Turing universality. Then you are like explaining the simple things that we agree on by the complex things nobody agree on. I don't agree that the flavor of a tangerine is complex or that nobody agrees on it. It seems much more complicated to try to reduce that flavor to what could only be the processing of hundreds of billions of bytes. ? Just as Comp does a brute appropriation of qualia under 1p uncertainty, No. That would be a confusion between []p and []p p (or others). Only God can do that confusion. You seem to go back and forth between making qualia something transcendent and private, to making it somehow inevitable mathematically. Yes. But it is not a back and forth. It just happen that when machine looks inward, and stay honest with herself, she cannot avoid some private transcendence. It is a theorem of arithmetic, with standard definition for transcendence. What's a standard definition for transcendence? I said *some* private transcendence, because to be honest on this needs, if only the completion of the course in modal logic, and much more. But the main idea of transcendence is that it looks real or true, yet you cannot justify it, or prove it to another. typical human candidate is consciousness, sense (I guess), the belief in a primitive physical universe, or in God, but also different kinds of relations that machines can have with different kind of infinities. Why isn't it just subconscious? You can call it like you want. How do you know that such a condition is not a 1 dimensional data transformation rather than an introspective aesthetic environment? As far as I can make sense of this, I would say that once a machine looks inward, she is confronted to an introspective aesthetic environment. So you don't know, ? but you are gong to say that it is the one and not the other. I said that you might have both (in comp). If we ask ourselves, 'Does being a good mathematician require you to be a good artist or musician?', the answer I think is no. I am not sure. But good mathematician is vague. Good artist also. Just in simple, straightforward terms - does being able to multiply fractions require that you can paint a realistic face or does it seem to be a fundamentally different talent? It depends who you are. I don't think that it depend on anything. Art galleries are full of art, not mathematical proofs. In a universe of pure
Re: Unput and Onput
On 08 Feb 2014, at 01:40, Craig Weinberg wrote: On Friday, February 7, 2014 7:33:28 PM UTC-5, Liz R wrote: On 8 February 2014 07:48, Bruno Marchal mar...@ulb.ac.be wrote: On 06 Feb 2014, at 21:43, LizR wrote: Because Turing universality is a mathematical notion. It has nothing to do with physics. I must admit I was quite surprised by this. I thought you generally argue that physics can be extracted from comp, and TU is part of comp (isn't it?) Ys, but that is why it is meaningfull to say that we derive physics from zero physical assumption. We derive physics from TU, which is defined in pure arithmetic, and has indeed no relation at all with physics *in his definition*. It involves only 0, successor, and the * and + laws, nothing else. Of course arithmetic and TU has something to do with physics, *at some level*, assuming comp, and well, in the psychology or theology of the TUs, which is itself derived from arithmetical self-reference. But this means that physics has some plausible relation with the UT. The UT itself, at his definition level, is a purely arithmetical notion. OK? Yes, of course. I was getting the cart before the horse, as they say. TU has nothing to do with physics but physics may have something to do with TU. How do you know it has nothing to do with physics? It seems clear to me that the behaviors of integers, memory, etc. are rooted in familiarity with a particular macroscopic physics. That is possible, even with comp, but it is a metatheory on the relation between human and number. To define the number, you don't need to invoke anything physical. Building a Turing machine only out of emotions or fog or empty space is not possible. Proof? (that statement is extra-ordinary, and so requires a clear and quite extra-ordinary proof). Bruno -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On 07 Feb 2014, at 21:05, Edgar L. Owen wrote: Jesse, I'm willing to accept the notion that time, like everything else is quantized at the finest scale, but even so I would maintain that everything is at one and only one point in time as the current state is continually recomputed into the next state.. However it seems to me this not just a simple sequence of information states being computed by programatic operators, but that the information that constitutes the current state of the universe must include information about how that information is changing. Not sure if that's clear. A lot more about it in my book where I explore the details of the information universe. As log as you don't define what you mean by computation this is nonsense. Bruno Also the notion that the arrow of time has anything to do with the 2nd law of thermodynamics doesn't make any sense at all. Entropy varies widely in the universe. If it had anything to do with the arrow of time we could expect time to flow differently in areas of different entropy and backwards in areas of decreasing entropy which it of course doesn't. Edgar On Friday, February 7, 2014 1:01:54 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 12:40 PM, Edgar L. Owen edga...@att.net wrote: Jesse, BTW, your own operational definition proves that time flows. Because your reflected light will always arrive back to you later on your clock than when it was sent. And how does that prove that time flows in a non-block-timey sense? From a geometric point of view, it just means that if you have a v-shaped path through spacetime of a light signal that intersects my worldline at two different points, then those two events have different proper times on my clock (because naturally, *any* two distinct points on my worldline have distinct proper times). If you're just talking about the fact that the event of the signal being sent always happens at an earlier proper time than the event of it being received, that's ultimately a consequence of the thermodynamic arrow of time and the fact that the entropy of the universe is continually increasing from a low-entropy Big Bang--if the laws of physics are deterministic it would in principle be possible to set up a special set of initial conditions for an isolated system that would ensure entropy would decrease towards a future minimum rather than increase, and in such a system there would be time-reversed signal reception events that happened before time-reversed transmission events. Jesse On Friday, February 7, 2014 8:49:32 AM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 7:57 AM, Edgar L. Owen edga...@att.net wrote: Jesse, OK, here's the detailed analysis of how I see the current state of this issue that I promised: A few points: 1. Since you asked let me repeat my 'operational definition' of the present moment that I used before. The twins meet, shake hands and compare watches. That is the operation definition. That is essentially the same as your reflected light operational definition with which I have no problem. 2. However it is important to note that that works not just for the twins together, but for every single twin by himself. Because any twin or observer can shake his own hand, look at his own watch, or note that the light reflected from a mirror in his hand takes minimal time to return. Therefore what is true for the twins together is also true for each twin separately, and is true for every observer in the universe as well. 3. So what is it that is true? You say it is being at the same point in spacetime. Call that relationship R1. I use the term that everyone else does and has throughout history, namely being in the (same) present moment. Call that relationship R2. So let's use a thought experiment to examine the difference between R1 and R2: Imagine a line of a billion twins. By both our definitions every two adjacent twins will be in what you call relationship R1 and I call R2. And this will be true of the adjacent twins on both sides of every twin. In your terminology every twin will be at the same point of spacetime with both the one to the right and to the left. In my terminology every twin will be in the same present moment with both the one to the right and to the left. Note that these relationships are transitive, so they necessarily cascade through the whole line of twins. What that means is that twin #1 must have that same relationship with twin #1 billion. But clearly it is NOT true that twin 1 is at the same point in spacetime as twin 1 billion because he not at the same point in space. However twin 1 can be in the same present moment as twin 1 billion, because that is just a time relationship that does not require a same space location. Thus our agreed operational definition leads to a contradiction with your terminology but not mine.
Re: Biology, Buddha and the irreflexive Multiverse (was Re: Modal Logic (Part 3: summary + 1 exercise)
On 07 Feb 2014, at 23:21, meekerdb wrote: On 2/7/2014 10:40 AM, Bruno Marchal wrote: On 06 Feb 2014, at 21:29, meekerdb wrote: On 2/6/2014 12:14 PM, Bruno Marchal wrote: In Kripke semantic all statements are relativized to the world you are in. []A can be true in some world and false in another. The meaning of [] is restricted, for each world, to the world they can access (through the accessibility relation available in the Kripke multiverse). []A still keep a meaning, but only in each world. So everything is said when we define the new meaning of [] by the rule []A is true in alpha, by definition, means that A is true in all world beta *accessible* from alpha. And A is true in alpha iff there is a world beta; where A is true, accessible from alpha. Suppose A is true in alpha, OK. Nice. but alpha is not accessible from alpha OK. and A is not true in any other world accessible from alpha. OK. Does it follow that A is not true in alpha? Yes. That does follow. How frustrating! A is true, but not possible. How could that makes sense? Well, this does not make sense ... in the Leibnizian multiverse. For sure. I don't see the point allowing that worlds may not be accesible from themselves? Does that have some application? Yes. First you prove to everybody that I can see in the future, as I announced yesterday the discovery of a Kripke multiverse violating the law []A - A. You just did. Well, in alpha, to be sure, []A - A is true (OK?), but []~A - ~A is falsified, as []~A is true (~A is true in all accessible world from alpha), and ~A is false in alpha, as A is true is true in alpha, and worlds obeys CPL). That amounts to the same, as the laws do not depend on the valuation. If []A - A is a law, []~A - ~A should follow. Note that []~A - ~A, is equivalent with (contraposition, double negation): ~~A - ~[]~A = A - A A - A is the dual formulation of []A - A. As law, they are equivalent. But as formula in one world, they can oppose to each other. So you did find a Kripke multiverse violating the *law* []A - A. And you did find the culprit: those bizarre world which does not access to themselves. Does that have some application? Yes. 1) An easy one, which plays some role in what I like to call the simplest buddhist theory of life ever! And that theory is a subtheory of G, and so will stay with us. That theory models life by worlds accessibility. To be alive at alpha means that t is true in alpha. It means that there is, at least, one world accessible from alpha. To die at alpha means that t is false in alpha. But t is true in alpha, as t is true in all worlds, so the only way to have t false, is that there are no accessible worlds from alpha, at all, including itself. That makes alpha into a cul-de-sac world. So in Kripke semantics, ~t, or equivalently []f, characterizes the cul-de-sac world. Then the simplest buddhist theory of life ever is just the statement, If you are alive, then you can die. It means that for all worlds alpha where you are alive (t is true), you can access to a cul-de- sac world. It means that everywhere, in all worlds we t - []f, or equivalently t - ~[]t. 2) If you interpret t by intelligent, and []f by stupid, you get with the same multiverse, my general theory of intelligence and stupidity. 3) if you interpret [] by provability (in PA, or in ZF), again, t - ~[]t is a law. Read: if I am consistent, then I can't prove that I am consistent. It is easy to see that the law t - ~[]t is a direct consequence of the formula of Löb []([]A - A) - []A. Just put t in place of A, and keep in mind that A - f is just ~A, and then contra-pose: []([]A - A) - []A []([]f - f) - []f [](~[]f) - []f ~[]f - ~[](~[]f) t - ~[]t The worlds in the Kripke mutiverse characterizing G are like that, they don't access to themselves. []A- A is not an arithmetical law from the 3p self-referential view of the machine, but that is why the Theaetetus idea is applicable and will give the non trivial S4Grz for the knower, or first person, fro which []A - A is indispensable. Some might be astonished that []f is true in a cul-de-sac world. But kripe semantics say that []f is true in alpha then f is true in all accessible worlds from alpha. This really means (for all beta): (alpha R beta) - (beta satisfy f). But (alpha R beta) is always false, and (beta satisfy f) is always false, so (alpha R beta) - (beta satisfy f). OK? Dunno. I'll have to think about it. Normally, we will discuss this a lot. One thing I find puzzling is that accessible seems ill defined. Of course, it means just binary relation, on some non empty set called multiverse (here). I have an intuitive grasp of what possible and necessary mean. But that is only the alethic modalities. In PA the modal box [] will represent provability, and the worlds will be non
Re: Eidetic memory and the comp hypothesis
On 07 Feb 2014, at 21:36, Chris de Morsella wrote: From: Bruno Marchal marc...@ulb.ac.be To: everything-list@googlegroups.com Sent: Friday, February 7, 2014 7:09 AM Subject: Re: Eidetic memory and the comp hypothesis Thanks for the link Chris. It has also been discovered, some years ago, that glial cells are involved in chronic pain. Since then, I follow them closely. They do communicate chemically in some wavy way, and they do communicate to, and influence, neurons. I still tend to think that neurons play the key role in the information treatment, and probably in the basic loops needed for consciousness, but I would not been astonished, that glial cells would be important for surviving some long period of time. (Needless to say, for the UDA reversal, this is only a matter of making the substitution level lower, and this does not change the consequences.) I agree that it seems highly probable that most of the brain activities underlying the mind -- out of which we experience the spontaneously arising sense of self, the awareness of that self and all the other magnificent mysteries of consciousness -- are occurring primarily as phenomenon primarily rooted in the electro- chemical chirping, crackling activity occurring in our highly folded cortexual sheets and the hugely parallel neural/axonal networks. Though if indeed (as it appears) glial cells play a key role in cementing memories (and maybe in some chemically based manner perhaps even storing long term memories -- perhaps like an archival storage medium for (slow) chemically mediated recall mechanisms -- then, in fact, it would be impossible to describe the working of the brain/mind without factoring in and understanding their role(s). It seems to me that -- at least some large portion of -- the glial cells may play a role like the one I am conjecturing. Is the glial brain underlying the cortexual sheet is in fact a kind of chemical only -- and hence much slower by orders of magnitude -- processor that the brain/mind uses as a permanent archive for long term memories that adjacent populations of neurons use kind of like a hard drive or maybe an archival drive/tape backup? It certainly seems like these cells are playing some role; what if our brains have glial cell hard drives. I was not aware of the role these types of brain cells (comprising around 90% of the brains cells) also are somehow involved in mediating the experience of pain (what about other sensations and emotions?) -- that is interesting. In terms of information theory -- or comp in this case -- not all that much changes. It is more like an extension of the electro- chemical cortex and the operations it performs are chemically mediated and so are much slower than electrical switches. However I also agree that this would not qualitatively change the essential nature of the brain as a biological computer, albeit an incredibly complex and highly parallel one with vast numbers of neurons and even vaster numbers of vertices. I would not be astonished that, if someone accept a brain transplant based on on the neuronal network, he would pretend having survived, when coming back from the hospital, but then get sleep problems, and developing chronical pains, long term memory damages, so that after one month, he has to come back to the hospital, and wait for a better transplant taking into account more of the glial cells. Of course that would be more expensive. Lowering the level makes the transplant more expensive of course. Brains are terribly complex structures, that seems rather clear. Bruno Chris Bruno On 06 Feb 2014, at 07:59, Chris de Morsella wrote: Liz - The pace of what we are discovering about the brain makes everything we know about it a moving goal post; case in point the key role it now appears astrocytes or glial cells play in the formation of memories. Astrocytes account for around 90% of all brain cells. This indicates to my view of things that until we really do understand the actual mechanisms (and the second follow on ring of emergent meta-mechanisms that characterize and emerge within vastly parallel networks as well), it is too early to put hard upper boundaries on capacity. If we are just now discovering previously overlooked critical actors for the formation of memories; do we even really know that much about the physical mechanisms for memory in the brain? This is, as you may have guessed, a subject in which I am fairly interested; I believe a rigorous micro and dynamic network scale understanding of brain functioning is required in order to form a theory of consciousness, self-aware intelligence etc. I also feel we are getting tantalizingly close to a kind of gestalt moment when all the pieces will emerge naturally as one whole dynamic elegant theory that will win someone a Nobel prize and a grand understanding of the
Re: Films I think people on this forum might like
Seconds (1966) is also worth a look. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Unput and Onput
On Saturday, February 8, 2014 3:31:24 AM UTC-5, Bruno Marchal wrote: On 07 Feb 2014, at 17:59, Craig Weinberg wrote: On Friday, February 7, 2014 11:52:24 AM UTC-5, Bruno Marchal wrote: On 06 Feb 2014, at 19:50, meekerdb wrote: On 2/6/2014 8:22 AM, Bruno Marchal wrote: Yes. But it is not a back and forth. It just happen that when machine looks inward, and stay honest with herself, she cannot avoid some private transcendence. It is a theorem of arithmetic, with standard definition for transcendence. I think the standard definition is beyond normal experience, but I think you mean true but unprovable. True and unprovable is only G* minus G. But the private transcendence is a more complex phenomenon in which Z* minus Z and X* minus X participate. But even if you take transcendent to mean ineffable I don't see how arithmetic is going to pick out the qualia of experience as ineffable. The hope is that X1* is a quantum logic à la John Bell (the logician, not the physicist), already used to model a notion of qualia, by proximity relations on perceptible fields. There are infinitely many true but unprovable propositions. Why are the qualia we experience the ones that they are and not some others? Because the one that they are probably maximizes the probability to eat, and minimizes the probability to be eaten. That just makes it the qualia of the gaps. That would be the case if the question was why qualia?, and not why *this* or *that* qualia? as Brent was asking. Each quale can be understood to be the personal presence of the total proprietary significance, while quanta (numbers, arithmetic, relations) can be understood to be the impersonal presence of the locally genericized qualia. Private experience is a subset of total experience. Public experience is a relativistically genericized collection of shared private experiences. The qualia itself should be explained by the logic of one of the hypostases (X1*). It should be, but I do not think that it is. I think that any of the hypostases could be explained by non-qualia. We don't have to explain imaginary numbers as being qualia, they can just be hypothetical. I don't see any reason why all quantitative properties could not exist just as well in a universe which completely lacks any kind of aesthetic presentation. Just as we can calculate geometry problems arithmetically without drawing lines and shapes, it makes no sense to me that any of the hypostases could positively affirm the specific nature of qualia. Craig Bruno You can't negatively assert positive identities like blue or itchy. Neither one would minimize or maximize anything inherently. If they had an implicit function like that, then there would be no reason for them anyhow as a regular quantitative value could be used instead. We don't live in a universe where qualia appears wherever a function implies that it would be convenient. Craig Insects color qualia are probably quite different, because it is driven by the sexual strategy of plants. Bruno Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com. To post to this group, send email to everyth...@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com javascript:. To post to this group, send email to everyth...@googlegroups.comjavascript: . Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Ghibbsa, Brent, Russell, Jesse, What Ghibbsa and others are trying to do here is establish a notion of a universal CLOCK time, and there are several approaches to doing this. The best way we would do this is to take an observer in deep space with no gravitational field or acceleration and calculate things like the Hubble age of the universe in his frame since that does provide a de facto standard for a universal observer. It's my understanding that the 13.7 billion figure is essentially that and that thus the true CLOCK TIME age of the universe can be considered 13.7 billion years because it would be measured (calculated) as such for a standard non-accelerated, non-gravitationalized observer, and by far most of the (non-accelerated) spatial points in the universe would approximate that frame as they would be located in intergalactic space. Thus it does give us a de facto standard frame for clock times. HOWEVER that is NOT the p-time concept. That's an entirely different notion of time that has no proper metric. P-time is just the active presence of reality. The presence of reality manifests as a present moment because since reality is real and actual it must also be present, and that presence manifests as a present moment. The present moment is simply the actual presence of the universe, the actual directly observable presence of reality. That present moment must be universal because it is the actual presence of the reality of the universe. The presence of the universe and the universe itself MUST be coterminous. Thus the present moment must be universal across the entirety of the universe. P-time is a dimensionLESS (or pre-dimensional) abstract computational space. As such it has no intrinsic measure other than its characteristic of 'happening' which provides the processor cycles to compute all dimensionality and the current information state of the entire universe. So the present moment of p-time is that IN WHICH all dimensionality, including clock times, are computed. It has no intrinsic dimensionality of its own. Though p-time is the actual radial dimension of the hyperspherical universe it cannot be directly measured because we can only use clocks of one form or another to measure time and clocks only measure CLOCK time. So the universal time you are discussing is a universal notion of CLOCK time, not p-time. However because we, and all biological observers, exist as a part of reality, as a part of the actual universe, we are automatically IN the presence of the universe and thus in the present moment which is our direct experience OF that presence in which we exist. Thus we all directly experience the presence of reality, the actual presence of the universe, as the present moment in which we all exist. Thus our fundamental experience of a personal present moment is actually our direct experience of the most fundamental process of reality itself, of the continual re-computation of the current state of the universe, driven by the continual extension of the radial p-time dimension of the universe. In my judgment this is an extremely profound insight! Edgar On Friday, February 7, 2014 11:41:17 PM UTC-5, ghi...@gmail.com wrote: On Saturday, February 8, 2014 4:28:16 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 4:16:16 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 12:26:29 AM UTC, Russell Standish wrote: On Fri, Feb 07, 2014 at 03:57:47PM -0800, Edgar L. Owen wrote: Ghibbsa, Let me clarify my previous answer a little. P-time runs at the same intrinsic rate everywhere in the universe though it doesn't really have a 'rate' in the usual sense since it's prior to dimensionality. However that rate is the speed at which the p-time radial dimension of the hyperspherical universe extends. That extension actually is or produces or generates the 'flow' of p-time. I take it you predict that space has positive curvature (Omega 1)? Note that evidence appears to contradict this, and is widely considered to be the hard evidence killing Tipler's Omega point idea. Or do you conceive of some method to compute this rate from a negative curvature? Furthermore, does your theory impose an embedding dimension for the spacetime manifold? Because the rate at which the radial dimension extends is crucially dependent on the embedding dimension. Note that General Relativity does not require a Euclidean embedding space. So p-time runs at the same intrinsic rate and provides the processor cycles of all the computations that produce the current information state of the universe. Part of the results of those computations are the different relativistic clock time rates of processes throughout the universe. Hope that makes it a little clearer Not much. How do you connect the clock speed of your hypothetical computer with the curvature of spacetime?
Re: Block Universes
Russell, Yes, that's correct. I'm just saying my theory predicts Omega MUST be 1 and the universe a positively curved hypersphere. 1. Because that's the only cosmological geometry consistent with p-time. 2. Because an Omega 1 results in a universe either infinite or with edges, neither of which is physically possible in my judgement for reasons I've stated previously here. Edgar On Saturday, February 8, 2014 12:26:45 AM UTC-5, Russell Standish wrote: On Fri, Feb 07, 2014 at 04:55:26PM -0800, Edgar L. Owen wrote: Russell, Some good questions! Yes, the theory predicts a very small positive curvature of space. The universe is a closed finite hypersphere with no edges and not infinite. A lot of people claim that data suggests the universe is flat, but the data does not actually suggest that. What the data suggests is only that the universe is very LARGE, i.e. that the curvature, if any, is very slight. Also note that for the universe to actually be flat Omega must be EXACTLY=1 to enormous precision. While if it varies from 1 in only the umpteenth digit it is not actually flat, just very large. The statistical likelihood of a number near to 1 being exactly 1 rather than the near infinite other values it could have is incredibly low. So there is no real indication that the universe is actually flat, only that whatever curvature it has is slight. Another good example of how otherwise intelligent scientists often misinterpret their own data! Sure, the issue is not whether it is flat, as surely Omega must differ slightly from 1, but whether Omega is greater than 1, or less than 1. If Omega were less than 1, space has a negative curvature, and the universe is open (never contracts into a big crunch). The empirical data I was alluding to was the observation that the universe's expansion accelerated, starting about a billion years ago. I thought this indicated a negative curvature case, although still close to flat. Maybe I'm getting my wires crossed here. A quick Google search indicates they're still arguing over what the WMAP data means, though: http://news.nationalgeographic.com/news/2003/10/1008_031008_finiteuniverse.html vs http://www.nbcnews.com/science/space/weird-findings-suggest-we-live-saddle-shaped-universe-f8C11133381 My theory does NOT assume an embedding dimension. The 4-dimensional hypersphere is the whole shebang Actually, you're right. The radius of a 4D hypersphere does not depend on the embedding dimension - just as the radius of a circle does not depend on embedding dimension. Sorry. Since my universe is hyperspherical with p-time the radial dimension, the passage of p-time is what 'inflates' the cosmic balloon, whose surface is the current universe, and thus what produces the current value of the curvature of space and causes the Hubble expansion. How close does space have to be to a hypersphere in order for your theory to work? General relativity demands local departure from flatness (and sphericity for that matter) to account for gravitational phenomena. This may be related to Brent's comments... Cheers -- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics hpc...@hpcoders.com.aujavascript: University of New South Wales http://www.hpcoders.com.au -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Liz, No, that's not my idea. See my proximate reply to Ghibbsa. Edgar On Saturday, February 8, 2014 3:15:42 AM UTC-5, Liz R wrote: I think Edgar's basic idea is that there is a plane of simultaneity which sweeps through space-time, and that all events in space time intersect with it - for example an astronaut moving at 0.9c will be intersecting it at the same time as his twin on Earth, but intersecting it at an angle that means his clock runs at a different rate. Or something like that. This hyperplane appears to be the rest frame of the CMBR (probably) and orthogonal to the expansion of the universe in 5 dimensions, ignoring the bumpy bits. On 8 February 2014 20:59, ghi...@gmail.com javascript: wrote: On Saturday, February 8, 2014 7:26:45 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 6:06:17 AM UTC, Brent wrote: On 2/7/2014 9:50 PM, ghi...@gmail.com wrote: But the question then remains the same, and the process of dealing with it doesn't change in principle either. We would keep looking for ways to deal with the problems that keep the steer on the goal which is best efforts to see a sense, starting general, that edgar's insight can be true. What is Edgar's insight? Can you explain it? All I've seen is that observers at the same event are at the same place and time - which is trivially the meaning of at the same event. His other insight, that distance relations are not fundamental but are derived from some kind of alignment of frames, sounds more interesting. Many people have noticed that you can define space just by sending light signals between observers with clocks, which is a way of aligning the clocks so they define and inertial frame. Brent I strongly doubt I'm the best person to be saying what his insight is. What I'm trying to contribute is more an outline method aligned with goals and making explicit what's already implicit anyway. I have stuck with p-time because that's the simplest thing that he himself seems to offer as the make or break insight his whole theory stands or falls on. I hadn't even picked up the insight you just mentioned. If you think that's more interesting, go with that for sure, no problem. I don't even understand that one clearly. So I'll answer your question 'what is his insight' in terms of p-time but only because I feel better equipped to speak of that one. The answer is, the good news of following a method like I suggest, is that it takes the meaning right out of his hands, eliminating the anyway unrealistic dependence that we manage to align with whatever is actually in his head. All we need is the minimum indivisible core of some sense a universal 'now' could be true. Really, it doesn't have to be edgar's idea of either universal, or 'now' or even be about time in the end. So long as we build everything we are doing, for edgar, with edgar, in terms of edgar, in at the level of method, which we can do by basically enshrining the principle we help the guy the best way for this to work out well for him. Translating to a principle of seeking the strongest sense his idea can be true, which includes within that all senses of how it might be made true, including removing dependencies he happens to believe are built in but which we in fact discover can be totally decoupled. That's my best guess for your answer. Final word from me: The only new distinction I'm proposing that isn't already what Edgar is saying and not already a 'fact on the ground' given so much time is already being given to this, is that we seek to formalize things a little bit by getting clear, what is already effectively in play, and seeking to reinforce whatever that is by some basic principles that can be enshrined in method because that's the generally accepted best way to ensure on-going consistency. The outcome I have proposed assumes the goal is sort of, positive in the extreme, and everything else rolls from that. But another totally legitimate outcome would be that having stopped to collectively think about this, people throw up their arms and say what the fuck are we doing giving all this freakin' attention to such an undeserving idea that is clearly totally screwy and wrong. That would be perfectly legitimate too. If the garbage needs to be taken out and the collective insight is that is Edgar and his ideas, then it's best for him too that he can know that cleanly and make his own mind up the merits on which it was based, and keep open for himself that he focuses on searching for a fairer bunch of folk to get his idea considered. That's fine. I can definitely vouch for that outcome as totally in the gift of any group of people to decide. What I personally couldn't vouch for and wouldn't feel good about in the fulsomeness of reflection, would be if that had been the built in implicit decision, in
Re: Block Universes
Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. The only real measure of that is how it manifests in the computations it produces because only they have any measure because only they have dimensionality. Again whenever we try to measure p-timel we end up measuring only what it has computed because only what it computes has measure including all measuring sticks, clocks and devices. P-time computes all dimensionality, and all measuring devices. Thus those measuring devices only measure other things that have been computed, not the p-time that computes them all. Thus when I speak of a processor 'rate', it's only an illustrative analogy because that rate has no direct measure. The only glimpse we get of it is in the minimal quanta of time measured in clock time, and presumably the curvature of the universe. So in clock time terms the p-time processor cycle must be very short, on the scale of what scientists misleadingly call the Planck time scale. The p-time processor rate must obviously be fast enough to compute all events in clock time, so in CLOCK time measures, the duration of a p-time processor cycle must be shorter than the shortest clock time event. Edgar On Friday, February 7, 2014 9:40:08 PM UTC-5, Liz R wrote: On Fri, Feb 07, 2014 at 03:57:47PM -0800, Edgar L. Owen wrote: Ghibbsa, Let me clarify my previous answer a little. P-time runs at the same intrinsic rate everywhere in the universe though it doesn't really have a 'rate' in the usual sense since it's prior to dimensionality. However that rate is the speed at which the p-time radial dimension of the hyperspherical universe extends. That extension actually is or produces or generates the 'flow' of p-time. If you can assign a speed to the expansion of the hypothetical hypersphere, then you have assumed an external space-time in which it is expanding, so that speed means something (distance/time). So you are assuming an extra 5D space-time in order to have something in which the 4D universe is expanding, including a time dimension... How is this prior to dimensionality? -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: A theory of dark matter...
Liz, For the first part of my answer to the question of in what sense might space be absolute see my new topic post on 'Newton's Bucket and Mach's Principle'.. Edgar On Friday, February 7, 2014 9:57:32 PM UTC-5, Liz R wrote: On 8 February 2014 15:45, ghi...@gmail.com javascript: wrote: but can you throw the relative character out of the window, and speak of an 'absolute landscape' implied by relativity theory that is made up of all the gravity wells, that definitely suggests a 'reality' that goes beyond the principle of equivalence. In that, the landscape shows what's big and what's small, so the relation between them, in one big picture. I ask this in context that acknowledges it wouldn't be any good for resolving much useable knowledge about the world. In fact none at all, save that relativity does imply such a reality is really there. But does relativity imply that? I don't think Einstein thought so, since he was taken with the ideas of Ernst Mach, in which there isn't an absolute landscape. But I'm told that general relativity doesn't obey Mach's principle, so perhaps it does imply it. (Certainly quantum gravity theories that try to make something different of space-time at the fundamental level seem to me to imply that there is an absolute framework involved... but I have been known to be wrong :) -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Lakoff and Arithmetic Origins
http://en.wikipedia.org/wiki/Where_Mathematics_Comes_From Lakoff and Núñez's avowed purpose is to begin laying the foundations for a truly scientific understanding of mathematics, one grounded in processes common to all human cognition. They find that four distinct but related processes metaphorically structure basic arithmetic: object collection, object construction, using a measuring stick, and moving along a path. It seems I'm not the only one who suspects that that arithmetic truth is derived from the abstraction of public object qualities (and their spatial-scale relations), rather than universal metaphysics. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: A theory of dark matter...
Brent, and Liz, We have to be careful in our choice of words here. It is quite clear that e.g. during relative motion of frames A and B, that each sees the other's clock running slower. So the two frames DO NOT give the same results here. However when one twin returns with a different clock time and STOPS both twins agree on the resulting different clock times. Relativity says this is due to the acceleration of the traveling twin. But my question is 'acceleration relative to WHAT?' The very notion of acceleration (including that of Newton's bucket) assumes there is an absolute background space in some sense that acceleration is relative to. I have a theory to explain this by the way spacetime is created by quantum events and thus must take on aspects of the frames of the events that create it. The cumulative large scale effect of this is to produce a very particular notion of absoluteness roughly aligned with the distribution of the mass of the universe. This because that mass undergoes the quantum events that produce the space that mass resides in. This explains why Mach Principle that the rotational acceleration of Newton's bucket is with respect to the cosmological mass of the universe is roughly correct. But it provides an actual theory for why this is true. Edgar On Friday, February 7, 2014 9:06:43 PM UTC-5, Brent wrote: On 2/7/2014 5:53 PM, ghi...@gmail.com javascript: wrote: On Friday, February 7, 2014 10:34:50 PM UTC, Edgar L. Owen wrote: Ghibbsa, Well yes, basically that's it. The question I have is why we have to choose one frame over the other to get the correct results. You don't. But in almost all cases there is a frame in which it is easy to apply the equations, one that takes advantage of symmetries and leaves out negligible effects. So you do the analysis is that frame and then you transform the answer if necessary to some other frame of interest. But in general what you're interested in is frame independent: Did the spaceship rendezvous with the planet or miss it? Did the tank fall in the pit or not? To do the transformation you have to know how things transform, which for inertial frames in flat spacetime is by Lorentz transformations, i.e. those that leave lightcones invariant. Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Real science versus interpretations of science
On Sat, Feb 8, 2014 at 12:52 AM, ghib...@gmail.com wrote: On Friday, February 7, 2014 6:36:21 PM UTC, ghi...@gmail.com wrote: On Friday, February 7, 2014 4:50:39 PM UTC, ghi...@gmail.com wrote: On Thursday, February 6, 2014 9:09:23 PM UTC, Platonist Guitar Cowboy wrote: On Thu, Feb 6, 2014 at 5:31 PM, Edgar L. Owen edga...@att.net wrote: Ghibbsa, Boy O boy. Reread my post to you. It was completely complementary, only to be met not with appreciation but with snide remarks and accusations. Anyway I officially withdraw it as it was obviously in error... Then the registrars, board of directors, volunteer representatives, unions, bureaucrats, technicians, warriors, and brave souls maintaining the ring of everything-listers, not including yours truly lazy in this regard, *officially decree*, with dueness in forthright diligence, AND purposefully noting the swearing protocolization of plaintiff's withdrawal of an overly ardent compliment to himself by himself, due to an error in the plaintiffs overestimation of himself, projecting his own awesomeness onto critical encouragement by the forgiving defendant in form of a normal post outside of p-time, as everyone is prone to commit from time to time, is noted and archived according to protocols of the appropriate paragraphs and sections. Howeveriver, this official withdrawal marking a landmark turn of events on this list, whencewithforthnight for now appeased, the angry souls of plaintiff's retract-rebuttalized error of unity in comradery-mass-dorkification of the rest of the members of this noble-bloat house of postingoods, unsearchable by any known box or tab, logical and otherwise, now cast into the iron lightning of Odin's dong song with a single post into the eternity of P-time. Hencewithtoforthcoming, all will change in the realized interpretations of Science because of the gravy gravity of this officialized, sealed, notarized, proof-read, nsa devoured, spamificationationalizeducation of the rest of the dumb list for we all like the gravy bit, unless we are greenitarian, which remains solemnly, in the light of day, a dark matter of information-urination from black holes spun out of standards more than blocks of verses singing in unison of angry hawks and birds. All rejoice and thank the Edgar, as well and more the forgiver, foreverchangeternally p-time of the past, present, future and on the left. Seeriousee? Clarification between the real and interpretation has been achieved in this thread. Thank you all. From the heart. Officially. PGC yep...very cool post. I couldn't work out who came out worse in your judgements. You weren't too happy with me in FoAR so we have form. You do say I am to be thanked as well and more so, but on the other hand you send him up much more. But hey, that could be because his speciousness has a lot more substance to send up. Which kind of makes him better in your eyes. One could worry forever, but really one would have to be an asshole to really that much of fuckat least for that to matter whether or not something is a good post. What I'd throw back is my perception of you is that you're basically a snob That's like throwing narcissism at people who surf the web. Of course I have to be snob if I write fiction and compose it musically: I'd have nothing to say without my own biases. But the same can be said of any scientific stance, regardless of interpretation (on topic btw): you're elitist towards some ideas and think other ideas aren't quite your cup of tea, and so defending your ideas is natural. Welcome to the web. My last post was merely bad extemporaneous non P-time prose, because I'm bored of giving sincere replies just for getting slapped by another Edgar comment, when he has taken the floor so often and failed to address basic objections to his ideas; instead throwing authoritative and infantilizing insults, always followed by some smiley emoticon to trivialize the transgression. So fine, he likes to play this game where he pushes everybody's buttons and then goes oh, I don't know why everybody here is so touchy, concerning his book, of all things. Him liking this game, I thought he wouldn't mind some of this, obfuscated in prose, because he doesn't take things as seriously as everybody else here, who have some faith axe to grind instead of being reasonable. What I got as a reply was simply You're idea of science is sci-fi + you're a snob. I have no problems with those and partially agree. p.s. don't worry I forgive you p.p.s. tee hee Not especially addressing you here PGC but I had to reply to something to keep it in this thread. So something I asserted was that I had tried to study Bruno's structure with as little direct knowledge of the contents as possible. Between this thread and another where I addressed Bruno directly I actually said his was the best structure I'd personally seen, or at the top table. I think
Re: Block Universes
Jesse, No, they do NOT have the same time coordinates in their respective frames because their clocks read different t-values. You simply cannot invent any frame that makes the actual difference in their ages go away. All you are doing is trying to ignore the effect by assigning a new arbitrary time to the meeting. That's fine but they are still really different ages so in that sense they can never actually be at the same clock time except by an arbitrary definition which ignores the fact of the trip and thus refuses to address the whole point of the trip. Edgar On Friday, February 7, 2014 9:09:51 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 3:24 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, If as you say, the same point in time in relativity just MEANS that two events are assigned the same time coordinate then the twins are NOT at the same point in time because the two events of their meeting have different time coordinates in their coordinate systems. Huh? No they don't. If a given pair of events A and B have exactly the same coordinates (both space and time coordinates) as one another in one coordinate system, then A and B must have the same coordinates as one another in EVERY coordinate system. Of course the actual value of the shared time coordinate will differ from one coordinate system to another (since this depends on things like where you arbitrarily set the origin of your coordinate system), but in every coordinate system the time-coordinate of A = the time-coordinate of B. Are you actually disagreeing with that (please answer clearly yes or no), or are you just pointing out that the shared time-coordinate is different in different systems, or that the shared time-coordinate will not match the clock time for both of them? Incidentally, to speak of their coordinate systems is ambiguous since they are not both inertial. Although physicists sometimes refer to the inertial rest frame of an observer as their own frame or similar words (though even this is purely a matter of convention, nothing stops a given observer from assigning coordinates to events using a coordinate system in which they are *not* at rest), there is no standard way to construct a coordinate system for a non-inertial observers, there are an infinite number of different coordinate systems they could use (even if you restrict them to using a coordinate system where they remain at a constant position coordinate, and where the time coordinate matches their own proper time). That's the whole point of needing a separate present moment to account for that. You can't just arbitrarily set a new clock time for the meeting and ignore the actual clock time difference in ages The *definition* of same time in relativity depends only on the coordinate time, not the clock time of any particular clock which is not a coordinate clock. So given this definition, yes you can ignore their own clock times, because it isn't relevant. If your point is just I don't like this definition because it's different from how I would prefer to define things that's fine, but you can't claim that this way of speaking is ill-defined or *internally* contradictory. When measuring tapes cross with different readings they do cross at the same point in space. Yes, and that means if the point where they cross is the 30-cm mark on tape #1 and the 40-cm mark on tape #2, then no matter what x-y coordinate system you use to label different points on the surface where the tapes are laid out, the 30-cm mark of tape #1 will have the same y-coordinate as the 40-cm mark of tape #2 (and likewise for the x-coordinate). When twins with different clock times meet they meet at the same point in time. Yes, and that means that if twin #1 is turning 30 at the point in spacetime where they meet, and twin #2 is turning 40 at that point, then no matter what x-y-z-t coordinate system you use to label different points in spacetime, the event of twin #1 turning 30 will have the same t-coordinate as the event of twin #2 turning 40 (and likewise for the spatial coordinates x,y,z). It is NOT the same point in CLOCK time unless you redefine it as so by imposing another coordinate system on it that ignores the fact of the trip. That's like saying the point where the tapes cross is NOT the same point in MEASURING TAPE space unless you redefine it as so by imposing another coordinate system on it that ignores the fact of their paths in space. But this is cheating because you ignore the real actual clock time difference of the ages which don't go away. That's like saying but this is cheating because you ignore the real actual measuring-tape difference of the position-markers which don't go away. The difference is that the tapes cross arbitrarily. What makes their crossing arbitrary? To flesh this out a bit, I'm
Re: Block Universes
Jesse, When I say 'everything happens in the same present moment'. 1. By everything I mean everything that actually happens, not everything you can imagine happening like Jesus not being crucified or Hitler winning WW2. I would think that would be obvious. 2. Everything in the history of the universe does NOT happen at the same p-time. P-time progresses just as clock time does and only the current p-time is called the current present moment. That present moment is not the same as the previous present moment though each as experienced as THE present moment. In each cycle or moment of p-time, the current present moment, the information state of the entire universe is recomputed. That, and only that, is what actually happens in every present moment of p-time as p-time progresses. 3. Part of what happens in every cycle of p-time is that all relativistic effects, including all clock times and their differences, are recomputed. The recomputed state of all those relativistic effects then has the local re-computed clock time 'attached' to it as its measure. These local clock times are NOT the measure of p-time, because they vary within p-time as the twins show. Edgar On Friday, February 7, 2014 7:53:36 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 3:43 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, Re your question of simultaneous past p-times its a good question and I did answer it but will give a more complete answer now. I said first that everything happens at the same p-time (the same present moment of p-time as p-time continually happens). That's a complete non-answer. I guess you are *defining* everything to mean everything which actually exists in my presentist ontology, i.e. only things as they are right now. But my question was specifically about *past* events, and it doesn't depend at all on the assumption that past events exist, only that there is an objective truth about them. Do you believe there is an objective truth about whether astronauts landed on the moon in 1969, or about whether all life was created in seven days or evolved over millions of years? If your answer is yes, then what I'm asking is whether, among the objective truths about past events, there is an objective truth about WHETHER THEY HAPPENED AT THE SAME TIME AS ONE ANOTHER. Yes or no? Please give a clear answer to this question. And if the answer is yes, please tell me clearly whether you think there is any way to determine empirically the truth about whether two past events happened at the same time, or if it is fundamentally unknowable to all beings within our universe (if the latter, that's what I mean by 'metaphysical'). But as I've explained, p-time is that IN WHICH all computations of measurable quantities takes place, so it doesn't really have a metric in the sense that clock time does, because it is the logical computational locus of the origin of all metrics. I have no idea what you mean by metric here, which in mathematics refers to a function that defines some notion of distance along paths in a manifold (which can include proper time if the manifold in question is relativistic spacetime). Again, please just tell me yes or no if you think there's an objective truth about whether past events happened at the same time as one another, no technical ideas like metrics are necessary to answer this question. Jesse -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Suicide Words God and Ideas
The invention of language was obviously of great benefit to the species called Homo sapiens, but like all tools it is not perfect and sometimes the brain can waste a great deal of processing power spinning its wheels over questions of words rather than ideas. For example, a recent poll showed that 70% of people in the USA thought that if a dying patient agreed then doctors should be allowed to end the patient's life by some painless means; however only 51% thought that doctors should be allowed to help a dying patient who wanted to die commit suicide. Another example would be those who DON'T believe in a omnipotent omniscient intelligent conscious being who created the universe and is responsible for morality but DO believe in God. John K Clark -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Better Than the Chinese Room
On Sat, Feb 8, 2014 at 3:23 AM, Bruno Marchal marc...@ulb.ac.be wrote: here is no consistent definition of p ? ! What is inconsistent with the definition of 3p and 1p Just as there is no absolute meaning to the word motion there is no consistent meaning to the 1p or the 3p. Your 3p can be my 1p and vice versa. ? ! Even if there were non consistent definition of A and B, it would not follow that A can be equal to B. If A and B have non consistent definitions then A and B can be equal or unequal or anything you like. Thus whatever A and B are they have no place in logical thought. Bertrand Russell in a lecture on logic said that a false proposition implies any proposition. A student raised his hand and said In that case, given that 1 = 0, prove that you are the Pope. Russell immediately replied, Add 1 to both sides of the equation: then we have 2 = 1. The set containing just me and the Pope has 2 members. But 2 = 1, so it has only 1 member; therefore, I am the Pope. I'm still waiting for somebody to explain to me why if intelligent behavior (which can be detected objectively) and consciousness (which can only be observed subjectively) can be totally separated why did random mutation and natural selection bother to invent consciousness? An epiphenomenalist would say that consciousness is just a necessary side effect of intelligence. That's what I think is probably true although I can't prove it. But I don't follow this: it is a phenomena having some role, I would say, and so evolution is just not a problem. OK, but if you believe that and if you are a logical person then you must also believe that the Turing Test can detect consciousness too and not just intelligence. And I know for a fact that Evolution did produce consciousness at least once, and perhaps many times. I doubt that is a fact. I assume you don't doubt that consciousness has been produced at least once and perhaps many times, but you think an invisible man in the sky made it and not Evolution. Evolution might (and probably have) just makes it possible for consciousness Apparently you think the distinction between Evolution producing consciousness and Evolution just (JUST?!!) making consciousness possible is important. I do not. John K Clark -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
RE: Suicide Words God and Ideas
From: everything-list@googlegroups.com [mailto:everything-list@googlegroups.com] On Behalf Of John Clark Sent: Saturday, February 08, 2014 8:01 AM To: everything-list@googlegroups.com Subject: Suicide Words God and Ideas The invention of language was obviously of great benefit to the species called Homo sapiens, but like all tools it is not perfect and sometimes the brain can waste a great deal of processing power spinning its wheels over questions of words rather than ideas. For example, a recent poll showed that 70% of people in the USA thought that if a dying patient agreed then doctors should be allowed to end the patient's life by some painless means; however only 51% thought that doctors should be allowed to help a dying patient who wanted to die commit suicide. Another example would be those who DON'T believe in a omnipotent omniscient intelligent conscious being who created the universe and is responsible for morality but DO believe in God. Well said John - and in this (if not on all things) we agree - language is an imprecise and sometimes tragically misleading tool, albeit one most powerful in helping our species build out the vast assemblage of the various human cultures. The importance of clearly communicating cardinal terms cannot be overstated. Words are symbolic vehicles, conveying meaning across the discontinuous gulf between minds. Not only must the minds in the communication chain, share an agreement of their symbolic meaning - in order for them to work as intended, but as you pointed out the choice of words used to convey a thought can have a profound effect on the outcome. One exercise I engage in is to parse what I read for words whose purpose is to color meaning rather than describe some fact. News reports are an excellent place to discover this treasure trove of the use of adjectives and coded phrases meant to trigger emotional responses and to generate firm opinions. Chris John K Clark -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Suicide Words God and Ideas
John, and Chris, The problem is that language evolved to describe and make sense of daily life, what I call 'the logic of things'. Thus it is not really designed to properly describe many of the deeper more fundamental aspects of reality. Trying to do that often leads to wrong or misleading conclusions because it is often very difficult to even express the questions well in syntactical logic, much less the answers... Edgar On Saturday, February 8, 2014 2:06:54 PM UTC-5, cdemorsella wrote: *From:* everyth...@googlegroups.com javascript: [mailto: everyth...@googlegroups.com javascript:] *On Behalf Of *John Clark *Sent:* Saturday, February 08, 2014 8:01 AM *To:* everyth...@googlegroups.com javascript: *Subject:* Suicide Words God and Ideas The invention of language was obviously of great benefit to the species called Homo sapiens, but like all tools it is not perfect and sometimes the brain can waste a great deal of processing power spinning its wheels over questions of words rather than ideas. For example, a recent poll showed that 70% of people in the USA thought that if a dying patient agreed then doctors should be allowed to end the patient's life by some painless means; however only 51% thought that doctors should be allowed to help a dying patient who wanted to die commit suicide. Another example would be those who DON'T believe in a omnipotent omniscient intelligent conscious being who created the universe and is responsible for morality but DO believe in God. Well said John – and in this (if not on all things) we agree – language is an imprecise and sometimes tragically misleading tool, albeit one most powerful in helping our species build out the vast assemblage of the various human cultures. The importance of clearly communicating cardinal terms cannot be overstated. Words are symbolic vehicles, conveying meaning across the discontinuous gulf between minds. Not only must the minds in the communication chain, share an agreement of their symbolic meaning – in order for them to work as intended, but as you pointed out the choice of words used to convey a thought can have a profound effect on the outcome. One exercise I engage in is to parse what I read for words whose purpose is to color meaning rather than describe some fact. “News” reports are an excellent place to discover this treasure trove of the use of adjectives and coded phrases meant to trigger emotional responses and to generate firm opinions. Chris John K Clark -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com javascript:. To post to this group, send email to everyth...@googlegroups.comjavascript: . Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Edgar, it's very frustrating trying to have a discussion with you when I repeatedly ask you questions that are meant to clarify things that seem unclear to me in your arguments, and you just completely ignore these questions and just give me a broad restatement of your overall views, which for me usually fails to clarify the specific things I found unclear. In the post you're responding to here I went as far as to give a list of simple yes-or-no questions to make it as easy as possible for you to see what I was asking and give me a quick answer--but you didn't directly address any of these questions. Instead of another exposition on your theories which *you* may think addresses the questions but in most cases doesn't for me, could you please just answer the following questions yes or no? I'll just quote them again from my previous post, but put them in a numbered list this time: 1. 'my question was specifically about *past* events, and it doesn't depend at all on the assumption that past events exist, only that there is an objective truth about them. Do you believe there is an objective truth about whether astronauts landed on the moon in 1969, or about whether all life was created in seven days or evolved over millions of years?' 2. 'If your answer is yes, then what I'm asking is whether, among the objective truths about past events, there is an objective truth about WHETHER THEY HAPPENED AT THE SAME TIME AS ONE ANOTHER. Yes or no?' 3. 'And if the answer is yes, please tell me clearly whether you think there is any way to determine empirically the truth about whether two past events happened at the same time, or if it is fundamentally unknowable to all beings within our universe' (Obviously 2 and 3 only need to be answered if you do in fact answer yes to the previous questions.) Jesse On Sat, Feb 8, 2014 at 10:52 AM, Edgar L. Owen edgaro...@att.net wrote: Jesse, When I say 'everything happens in the same present moment'. 1. By everything I mean everything that actually happens, not everything you can imagine happening like Jesus not being crucified or Hitler winning WW2. I would think that would be obvious. 2. Everything in the history of the universe does NOT happen at the same p-time. P-time progresses just as clock time does and only the current p-time is called the current present moment. That present moment is not the same as the previous present moment though each as experienced as THE present moment. In each cycle or moment of p-time, the current present moment, the information state of the entire universe is recomputed. That, and only that, is what actually happens in every present moment of p-time as p-time progresses. 3. Part of what happens in every cycle of p-time is that all relativistic effects, including all clock times and their differences, are recomputed. The recomputed state of all those relativistic effects then has the local re-computed clock time 'attached' to it as its measure. These local clock times are NOT the measure of p-time, because they vary within p-time as the twins show. Edgar On Friday, February 7, 2014 7:53:36 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 3:43 PM, Edgar L. Owen edga...@att.net wrote: Jesse, Re your question of simultaneous past p-times its a good question and I did answer it but will give a more complete answer now. I said first that everything happens at the same p-time (the same present moment of p-time as p-time continually happens). That's a complete non-answer. I guess you are *defining* everything to mean everything which actually exists in my presentist ontology, i.e. only things as they are right now. But my question was specifically about *past* events, and it doesn't depend at all on the assumption that past events exist, only that there is an objective truth about them. Do you believe there is an objective truth about whether astronauts landed on the moon in 1969, or about whether all life was created in seven days or evolved over millions of years? If your answer is yes, then what I'm asking is whether, among the objective truths about past events, there is an objective truth about WHETHER THEY HAPPENED AT THE SAME TIME AS ONE ANOTHER. Yes or no? Please give a clear answer to this question. And if the answer is yes, please tell me clearly whether you think there is any way to determine empirically the truth about whether two past events happened at the same time, or if it is fundamentally unknowable to all beings within our universe (if the latter, that's what I mean by 'metaphysical'). But as I've explained, p-time is that IN WHICH all computations of measurable quantities takes place, so it doesn't really have a metric in the sense that clock time does, because it is the logical computational locus of the origin of all metrics. I have no idea what you mean by metric here, which in mathematics refers to a function that defines some notion of distance along paths in
Re: Better Than the Chinese Room
On 08 Feb 2014, at 17:53, John Clark wrote: On Sat, Feb 8, 2014 at 3:23 AM, Bruno Marchal marc...@ulb.ac.be wrote: here is no consistent definition of p ? ! What is inconsistent with the definition of 3p and 1p Just as there is no absolute meaning to the word motion there is no consistent meaning to the 1p or the 3p. Your 3p can be my 1p and vice versa. ? ! 3p = the content of the diary of the guy which observes the teleportation experience. 1p = the content of the diary of the guy who enter actually the teleportation box. We have provided numerous examples. Where is the inconsistency. Relative, yes. Inconsistent? You must give a proof. Even if there were non consistent definition of A and B, it would not follow that A can be equal to B. If A and B have non consistent definitions then A and B can be equal or unequal or anything you like. Thus whatever A and B are they have no place in logical thought. Bertrand Russell in a lecture on logic said that a false proposition implies any proposition. A student raised his hand and said In that case, given that 1 = 0, prove that you are the Pope. Russell immediately replied, Add 1 to both sides of the equation: then we have 2 = 1. The set containing just me and the Pope has 2 members. But 2 = 1, so it has only 1 member; therefore, I am the Pope. You have no consistent definition of John Clark's consciousness, nor any consistent of everybody else consciousness, so John Clark's consciousness = everybody else's consciousness, with your logic. You can deduce all proposition from an inconsistent classical logical system, but that does not entail that consistent notions, for which you don't have (yet, or never) consistent definitions. are equal. Correct machine cannot define truth, and they cannot define knowledge, but they can already shown that they are different. But all this is irrelevant, given that I give two provably consistent definition of 1p and 3p (consistent relatively to elementary arithmetic). I'm still waiting for somebody to explain to me why if intelligent behavior (which can be detected objectively) and consciousness (which can only be observed subjectively) can be totally separated why did random mutation and natural selection bother to invent consciousness? An epiphenomenalist would say that consciousness is just a necessary side effect of intelligence. That's what I think is probably true although I can't prove it. But I don't follow this: it is a phenomena having some role, I would say, and so evolution is just not a problem. OK, but if you believe that and if you are a logical person then you must also believe that the Turing Test can detect consciousness too and not just intelligence. That does not follow. Consciousness can have a role, but that role can be attributed to other factors too, and the case can be undecidable. Some things can be true, but not justifiable. In fact if there were an effective criteria for consciousness, it would be simple to build a zombie satisfying that criteria. What can happen is that the behavior of some conscious being can be such that living long enough with a conscious creature, in some reach of your emotion spectrum, you can develop empathy. And I know for a fact that Evolution did produce consciousness at least once, and perhaps many times. I doubt that is a fact. I assume you don't doubt that consciousness has been produced at least once and perhaps many times, but you think an invisible man in the sky made it and not Evolution. I think that with comp, consciousness is an arithmetical truth for some arithmetical entities, notably related to machine, and thus out of time and space categories. Then consciousness seem to have a time evolution, but that is only true from the 1p perspective. Evolution might (and probably have) just makes it possible for consciousness Apparently you think the distinction between Evolution producing consciousness and Evolution just (JUST?!!) making consciousness possible is important. I do not. Nor do I. But you have a cut my quote which was: I doubt that is a fact. Evolution might (and probably have) just makes it possible for consciousness, which would be in arithmetic, to be manifested through persons in the relative way. The distinction is that in one case evolution somehow produce or create consciousness, and in the second case, evoulition does not create consciousness, but creates the condition of some possible manifestation of it. Like evolution did not create the computer, or the numbers, but has created the conditions for them to manifest themselves. If you assume comp, you don't need more than Gödel 1931 to understand that an infinity of computations going through your actual 1p state exists in arithmetic. That truth is atemporal, even if the first person feeling evolving through
Re: Block Universes
Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. So we know that whenever there are no relativistic effects between any A and B that we just use their synchonized clocks to determine they are in the same current moment of p-time. 2. In the case of the twins after they meet up again with A's age =30 and B's age =40. A: There are no more relativistic effects after the meeting so we know they are now in the same current point in p-time. B: We can back calculate that they were in a previous same point in p-time when their synchronized clocks and ages were still identical, i.e. from their birth to the start of the trip. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back calculate to determine which clock times of any two observers occurred in the same current p-time SIMULTANEITY even when those observers cannot agree on CLOCK time simultaneity among themselves. So since p-time has no metric itself you can't just compare p-time t values because there are none. You have to back calculate clock times to determine in what current p-times they occurred. So that's how we determine whether any two events occurred a the same p-times or not. You should always be able to determine that even though you can assign a p-time t value because there are none because p-time doesn't have a metric. Edgar On Friday, February 7, 2014 12:51:32 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 12:27 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, Well you just avoid most of my points and logic. Can you itemize the specific points you think I'm avoiding? But yes, I agree with your operational definition analysis. That is EXACTLY my point. That what our agreed operational definitions define is a COMMON PRESENT MOMENT, and NOT a same point in spacetime, because the logic of it does not support it being in the same point in space, only in the same point of time Huh? Even if one accepts p-time, that operational definition still must be seen as a merely *approximate* way of defining the same point of p-time, not exact, just like with same point in space or same point in spacetime. If I bounce some light off you, surely you agree that the event of it reflecting off you occurred at a slightly earlier point in p-time that the event of reaching my eyes (or instruments)? Likewise if I feel our palms meet in a handshake, I don't actually begin to feel it until a slightly later moment of p-time than the moment our palms first made physical contact, and likewise for any shift or movement you might make with your hands. If you want to talk in a non-approximate way, all our experiences are slightly delayed impressions of events that occured in the past, regardless of whether we're talking about p-time or coordinate time. On this subject, could you address the question I asked in another post about whether you think there's any empirical way to determine whether two events in the past occurred at the same p-time, or whether the assumption of p-time simultaneity is a purely metaphysical one and that there's no way of knowing whether a specific pair of events we have records of actually happened simultaneously in p-time? and that same point in time is obviously not anything that relativity predicts, because no matter what set of coordinates you choose, relativity always gives 2 different real answers for the ages of the twins. I don't know what part of this you're not understanding, same point in time in relativity just MEANS that two events are assigned the same time coordinate, relativity doesn't deal with any absolute notion of simultaneity of distant events whatsoever. And relativity definitely does predict situations where clocks show different readings at the same coordinate time--do you deny this? Like I said earlier, there is a direct spatial analogy here that makes perfect sense if you don't assume p-time
Re: Modal Logic (Part 3: summary + 1 exercise)
On 8 February 2014 08:43, Bruno Marchal marc...@ulb.ac.be wrote: On 07 Feb 2014, at 02:29, LizR wrote: On 7 February 2014 09:14, Bruno Marchal marc...@ulb.ac.be wrote: On 06 Feb 2014, at 07:39, LizR wrote: On 6 February 2014 08:25, Bruno Marchal marc...@ulb.ac.be wrote: Which among the next symbolic expressions is the one being a well formed formula: ((p - q) - ((p (p V r)) - q)) ))(p-)##à89- a - q) OK? I sure hope so. Well, I will pray a little bit. (to be sure the irst one might contain a typo, but I assure you there are no typo in the second one (and there is no cat walking on the keyboard). *** Then a set of worlds get alive when each proposition (p, q, r), in each world get some truth value, t, or f. I will say that the mutiverse is illuminated. And we can decide to put f and t is the propositional symbol for the boolean constant true and false. (meaning that p - f is a proposition, or well formed formula). In modal logic it is often simpler to use only the connector - and that if possible if you have the constant f. For example you can define ~p as an abbreviation for (p - f), as you should see by doing a truth table. OK? p - f is (~p V f), for which the truth table is indeed the same as ~p OK. (Can you define , V, with - and f in the same way? This is not an exercise, just a question!). I don't think I can define those *literally* with p, - and f if that's what you mean. That is what I mean, indeed. OK, having had a look at what you say below, let's have another go. Start from p - q being equivalent to (~p V q) That gives us ~p - q equiv (p V q) and from the above ~p is (p - f) so p V q is (p - f) - q which I seem to remember is what you got. OK so far. p q --- well, p - q is ~(p ~q), so ~(p - q) = (p ~q) and ~(p - ~q) = (p q) so ~(p - (q - f)) which I guess is ((p - ( q - f)) - f) = (p q) Does it?!?! Looking below, I see that it does. Wow. I knew you can do that. With hints. But that doesn't make sense, because requires two arguments, so it would have to be something like ... well, p - q is (~p V q) and it's also ~(p ~q), which contain V and ... I'm not sure I know what you mean. Like for ~, to define and V to a machine which knows only - and f. You can use the ~, as you have alredy see that you can define it with - and f. I reason aloud. Please tell me if you understand. First we know that p - q is just ~p V q, OK? So the V looks already close to -. Except that instead of ~p V q (which is p - q) we want p V q. May be we can substitute just p by ~p: and p V q might be then ~p - q, Well, you can do the truth table of ~p - q, and see that it is the same as p V q. To finish it of course, we can eliminate the ~, and we have that p V q is entirely defined by (p - f) - q. OK? And the : Well, we already know a relationship between the and the V, OK? The De Morgan relations. So, applying the de Morgan relation, p q is the same as ~(~p V ~q), (the same logically, not pragmatically, of course). That solves the problem. But we can verify, perhaps simplify. We can eliminate the V by the definition above (A V B = ~A - B), ~(~p V ~q) becomes ~(~~p - ~q), that is ~(p - ~q). Or, to really settle the things, and define from - and f: p q = ((p - (q - f)) - f). OK? Apparently, yes. OK. (Not sure what you mean by apparently, though). Well, even though I did it, the result still looks rather strange to me! Each world, once illuminated (that is once each proposition letter has a value f or t) inherits of the semantics of classical proposition logic. This means that if p and q are true in some world alpha, then (p q) is true in that world alpha, etc. in particular all tautologies, or propositional laws, is true in all illuminated multiverse, and this for all illuminations (that for all possible assignment of truth value to the world). OK? Question: If the multiverse is the set {a, b}, how many illuminated multiverses can we get? I suppose 4, since we have a world with 2 propositions, and each can be t or f? Answer: there is three letters p, q, r, leading to eight valuations possible in a, and the same in b, making a total of 64 valuations, if I am not too much distracted. I go quick. This is just to test if you get the precise meanings. Oh, OK. So a and b are worlds, not ... sorry. I see. Good. So that is 2^3 x 2^3 because a has p,q,r = 3 values, all t or f, as does b. OK now I see what you meant. OK. Of course with the infinite alphabet {p, q, r, p1, q1, r1, p2, ... } we already have a continuum of multiverses. I can't quite see why it's a continuum. Each world has a countable infinity of letters, and the number of worlds is therefore 2 ^ countable infinity! Is that a continuum? Yes. We proved it, Liz. Yes I had a sneaky suspicion we did. It seems familiar ... a bit. Understanding is good. Understanding and
Re: Block Universes
Jesse, Yes, of course there is an objective truth that events such as you mention happen at the clock times they did according to clocks on earth. How could we think otherwise? As for how to determine whether past events happen at the same p-times see my just previous post in response to your previous asking of the same question for a detailed answer. Edgar On Saturday, February 8, 2014 2:46:46 PM UTC-5, jessem wrote: Edgar, it's very frustrating trying to have a discussion with you when I repeatedly ask you questions that are meant to clarify things that seem unclear to me in your arguments, and you just completely ignore these questions and just give me a broad restatement of your overall views, which for me usually fails to clarify the specific things I found unclear. In the post you're responding to here I went as far as to give a list of simple yes-or-no questions to make it as easy as possible for you to see what I was asking and give me a quick answer--but you didn't directly address any of these questions. Instead of another exposition on your theories which *you* may think addresses the questions but in most cases doesn't for me, could you please just answer the following questions yes or no? I'll just quote them again from my previous post, but put them in a numbered list this time: 1. 'my question was specifically about *past* events, and it doesn't depend at all on the assumption that past events exist, only that there is an objective truth about them. Do you believe there is an objective truth about whether astronauts landed on the moon in 1969, or about whether all life was created in seven days or evolved over millions of years?' 2. 'If your answer is yes, then what I'm asking is whether, among the objective truths about past events, there is an objective truth about WHETHER THEY HAPPENED AT THE SAME TIME AS ONE ANOTHER. Yes or no?' 3. 'And if the answer is yes, please tell me clearly whether you think there is any way to determine empirically the truth about whether two past events happened at the same time, or if it is fundamentally unknowable to all beings within our universe' (Obviously 2 and 3 only need to be answered if you do in fact answer yes to the previous questions.) Jesse On Sat, Feb 8, 2014 at 10:52 AM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, When I say 'everything happens in the same present moment'. 1. By everything I mean everything that actually happens, not everything you can imagine happening like Jesus not being crucified or Hitler winning WW2. I would think that would be obvious. 2. Everything in the history of the universe does NOT happen at the same p-time. P-time progresses just as clock time does and only the current p-time is called the current present moment. That present moment is not the same as the previous present moment though each as experienced as THE present moment. In each cycle or moment of p-time, the current present moment, the information state of the entire universe is recomputed. That, and only that, is what actually happens in every present moment of p-time as p-time progresses. 3. Part of what happens in every cycle of p-time is that all relativistic effects, including all clock times and their differences, are recomputed. The recomputed state of all those relativistic effects then has the local re-computed clock time 'attached' to it as its measure. These local clock times are NOT the measure of p-time, because they vary within p-time as the twins show. Edgar On Friday, February 7, 2014 7:53:36 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 3:43 PM, Edgar L. Owen edga...@att.net wrote: Jesse, Re your question of simultaneous past p-times its a good question and I did answer it but will give a more complete answer now. I said first that everything happens at the same p-time (the same present moment of p-time as p-time continually happens). That's a complete non-answer. I guess you are *defining* everything to mean everything which actually exists in my presentist ontology, i.e. only things as they are right now. But my question was specifically about *past* events, and it doesn't depend at all on the assumption that past events exist, only that there is an objective truth about them. Do you believe there is an objective truth about whether astronauts landed on the moon in 1969, or about whether all life was created in seven days or evolved over millions of years? If your answer is yes, then what I'm asking is whether, among the objective truths about past events, there is an objective truth about WHETHER THEY HAPPENED AT THE SAME TIME AS ONE ANOTHER. Yes or no? Please give a clear answer to this question. And if the answer is yes, please tell me clearly whether you think there is any way to determine empirically the truth about whether two past events happened at the same time,
Re: Block Universes
On 2/8/2014 12:15 AM, LizR wrote: I think Edgar's basic idea is that there is a plane of simultaneity which sweeps through space-time, and that all events in space time intersect with it - for example an astronaut moving at 0.9c will be intersecting it at the same time as his twin on Earth, but intersecting it at an angle that means his clock runs at a different rate. Or something like that. This hyperplane appears to be the rest frame of the CMBR (probably) and orthogonal to the expansion of the universe in 5 dimensions, ignoring the bumpy bits. You can of course choose such a hyperplane (e.g. a 3-sphere) of constant CMB observed temperature, which fits nicely with the symmetry of FRW cosmology and makes the equations very simple. But that time variable, t, then makes the dynamical equations of something moving relative to the CMB quite messy because those equations are simple in terms of the Lorentz transform of t plus space variables. Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Better Than the Chinese Room
On 2/8/2014 12:23 AM, Bruno Marchal wrote: An epiphenomenalist would say that consciousness is just a necessary side effect of intelligence. But I don't follow this: it is a phenomena having some role, I would say, and so evolution is just not a problem. To say it has some role implies that there is a role apart from the physics and the intelligent behavior. If it's a *necessary* aspect of intelligence then it makes no sense to talk about it having a role - its role is just another way of talking about the intelligence. Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edgaro...@att.net wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back calculate to determine which clock times of any two observers occurred in the same current p-time SIMULTANEITY even when those observers cannot agree on CLOCK time simultaneity among themselves. HOW would you back calculate it though? Even if we set aside my questions about gravity above and just look at a case involving flat SR spacetime, your answer gives no details. If you have any procedure in mind, could you apply it to a simple example? Let's say Alice is sent on a ship that moves away from Bob on Earth on the day they are both born, and the ship moves with speed of 0.8c relative to the Earth, towards a planet 12 light-years away in the Earth's frame. Alice arrives at that planet when she is 9 years old, and at that point the ship immediately turns around and heads back towards Earth with a relative speed of 0.6c. Alice experiences the return journey to take 16 more years, so when she returns to Earth she is 25 years old, but Bob is 35 years old when they meet. Can you show me how to back-calculate how old Bob was when he was in the same moment of p-time as Alice turning 9 and her ship reaching the planet and turning around? So since p-time has no metric itself you can't just compare p-time t values because there are none. You have to back calculate clock times to determine in what current p-times they occurred. So that's how we determine whether any two events occurred a the same p-times or not. You should always be able to determine that even though you can assign a p-time t value because there are none because p-time doesn't have a metric. I have never asked you for a p-time value, I'm only interested in the question of which events are simultaneous in p-time. I don't think your answers so far have made it clear that you have any well-defined procedure for determining this, see my questions above. Jesse Edgar On Friday, February 7, 2014 12:51:32 PM UTC-5, jessem wrote: On Fri, Feb 7, 2014 at 12:27 PM, Edgar L. Owen edga...@att.net wrote: Jesse, Well you just avoid most of my points and logic. Can you itemize the specific points you think I'm avoiding? But yes, I agree with your operational definition analysis. That is EXACTLY my point. That what our agreed operational definitions define is a COMMON PRESENT MOMENT, and NOT a same point in spacetime, because the logic of it does not support it being in the same point in space, only in the same point of time Huh? Even if one accepts p-time, that operational definition still must be seen as a merely *approximate* way of defining the same point of p-time, not exact, just like with same point in space or same point in spacetime. If I bounce some light off you, surely you agree that the event of it reflecting off you occurred at a slightly earlier point in p-time that the event of reaching my eyes (or instruments)? Likewise if I feel our palms meet in a
Re: Block Universes
On 9 February 2014 11:28, Jesse Mazer laserma...@gmail.com wrote: HOW would you back calculate it though? Even if we set aside my questions about gravity above and just look at a case involving flat SR spacetime, your answer gives no details. If you have any procedure in mind, could you apply it to a simple example? Let's say Alice is sent on a ship that moves away from Bob on Earth on the day they are both born, and the ship moves with speed of 0.8c relative to the Earth, towards a planet 12 light-years away in the Earth's frame. Alice arrives at that planet when she is 9 years old, and at that point the ship immediately turns around and heads back towards Earth with a relative speed of 0.6c. Alice experiences the return journey to take 16 more years, so when she returns to Earth she is 25 years old, but Bob is 35 years old when they meet. Can you show me how to back-calculate how old Bob was when he was in the same moment of p-time as Alice turning 9 and her ship reaching the planet and turning around? Madame Liz knows all and my psychic powers tell me that Edgar won't give you a sensible answer. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On Sat, Feb 8, 2014 at 10:41 AM, Edgar L. Owen edgaro...@att.net wrote: Jesse, No, they do NOT have the same time coordinates in their respective frames because their clocks read different t-values. In the post you're responding to here I had another request for clarification which you didn't answer: in every coordinate system the time-coordinate of A = the time-coordinate of B. Are you actually disagreeing with that (please answer clearly yes or no), or are you just pointing out that the shared time-coordinate is different in different systems, or that the shared time-coordinate will not match the clock time for both of them? Keep in mind that we were talking about what's true according to the definitions of coordinate time in relativity, this question has nothing to do with anything not part of relativity theory like p-time, nor is it asking whether you *approve* of the definitions used in relativity. You simply cannot invent any frame that makes the actual difference in their ages go away. I didn't say anything about making the difference in ages go away. If when they meet twin #1 is turning 30 and twin #2 is turning 40, then if event A = (twin #1 turns 30) and event B = (twin #2 turns 40), in every coordinate system A has the same time-coordinate as B, but they are really different ages at that point. All you are doing is trying to ignore the effect by assigning a new arbitrary time to the meeting. That's fine but they are still really different ages so in that sense they can never actually be at the same clock time except by an arbitrary definition which ignores the fact of the trip and thus refuses to address the whole point of the trip. I have no idea what you think I am refusing to address. Yes, they really are different ages, I have never suggested otherwise--and they really are those different ages at the same coordinate time as coordinate time is defined in relativity (using local measurements on physical coordinate clocks). You may not *like* that definition of same time, but if you are actually denying that what I am saying is true ACCORDING TO THE STANDARD DEFINITIONS OF RELATIVITY, then you are misunderstanding something about how relativity works. Speaking of refusing to address things, yet again you just drop the subject of spatial analogues when I explain how every quantitative fact about the twin paradox scenario has a directly analogous quantitative fact in the measuring tape scenario. For example, as I mentioned, the fact that the twins are the same age when they depart is analogous to the fact that at the first crossing-point that the measuring tapes diverge from, they both show the same marking (say, 0 centimeters) at that first crossing point. We can also lay out these tapes on a piece of graph paper with Cartesian coordinate axes drawn on, so that any point on any given tape has a spatial coordinate as well as a measuring-tape marking, analogous to the fact that any event on the twins' worldline has a coordinate time as well as a clock time according to their own clock. I know that in some conceptual way you don't think a spatial scenario can be analogous to one involving time, but can you point out any specific measurable, quantitative facts about the twin scenario that don't have a direct analogue in measurable, quantitative facts in the measuring-tape scenario? As usual this is not meant to be a merely rhetorical question, please answer yes or no (and if yes point to a specific measurable quantitative fact in the twin paradox that you think lacks an analogue in the measuring tape scenario). Jesse -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Jesse, The ages are the only 'real' clocks here because they are not arbitrary but real and actual and cannot be reset. They show different clock times in the same present moment. All other clocks are arbitrary. I don't know what else I can add to this. I did address all of your questions whether or not you like my answers... Edgar On Saturday, February 8, 2014 6:23:37 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 10:41 AM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, No, they do NOT have the same time coordinates in their respective frames because their clocks read different t-values. In the post you're responding to here I had another request for clarification which you didn't answer: in every coordinate system the time-coordinate of A = the time-coordinate of B. Are you actually disagreeing with that (please answer clearly yes or no), or are you just pointing out that the shared time-coordinate is different in different systems, or that the shared time-coordinate will not match the clock time for both of them? Keep in mind that we were talking about what's true according to the definitions of coordinate time in relativity, this question has nothing to do with anything not part of relativity theory like p-time, nor is it asking whether you *approve* of the definitions used in relativity. You simply cannot invent any frame that makes the actual difference in their ages go away. I didn't say anything about making the difference in ages go away. If when they meet twin #1 is turning 30 and twin #2 is turning 40, then if event A = (twin #1 turns 30) and event B = (twin #2 turns 40), in every coordinate system A has the same time-coordinate as B, but they are really different ages at that point. All you are doing is trying to ignore the effect by assigning a new arbitrary time to the meeting. That's fine but they are still really different ages so in that sense they can never actually be at the same clock time except by an arbitrary definition which ignores the fact of the trip and thus refuses to address the whole point of the trip. I have no idea what you think I am refusing to address. Yes, they really are different ages, I have never suggested otherwise--and they really are those different ages at the same coordinate time as coordinate time is defined in relativity (using local measurements on physical coordinate clocks). You may not *like* that definition of same time, but if you are actually denying that what I am saying is true ACCORDING TO THE STANDARD DEFINITIONS OF RELATIVITY, then you are misunderstanding something about how relativity works. Speaking of refusing to address things, yet again you just drop the subject of spatial analogues when I explain how every quantitative fact about the twin paradox scenario has a directly analogous quantitative fact in the measuring tape scenario. For example, as I mentioned, the fact that the twins are the same age when they depart is analogous to the fact that at the first crossing-point that the measuring tapes diverge from, they both show the same marking (say, 0 centimeters) at that first crossing point. We can also lay out these tapes on a piece of graph paper with Cartesian coordinate axes drawn on, so that any point on any given tape has a spatial coordinate as well as a measuring-tape marking, analogous to the fact that any event on the twins' worldline has a coordinate time as well as a clock time according to their own clock. I know that in some conceptual way you don't think a spatial scenario can be analogous to one involving time, but can you point out any specific measurable, quantitative facts about the twin scenario that don't have a direct analogue in measurable, quantitative facts in the measuring-tape scenario? As usual this is not meant to be a merely rhetorical question, please answer yes or no (and if yes point to a specific measurable quantitative fact in the twin paradox that you think lacks an analogue in the measuring tape scenario). Jesse -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Jesse, I gave you a clear easy to follow and understand procedure that I believe works in every case to determine if any two clock time labeled events occurred in the same p-time moment or not. I'm sorry if you don't see how it works. I don't see how I can make it much clearer. It's just applying standard relativity calculations. You don't have to do them backwards BTW. If you start with A and B in the same frame, they will automatically be in the same p-time present moment so you can do the math forward from there to establish the same p-times for all different clock time of A and B when one starts to travel. That's simple standard relativistic calculations. I don't have time to start doing calculations for you but the procedures I gave you are standard relativistic calculations that should enable you to determine which clock time labeled events occurred at the same p-times if you want. Edgar On Saturday, February 8, 2014 5:28:08 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back calculate to determine which clock times of any two observers occurred in the same current p-time SIMULTANEITY even when those observers cannot agree on CLOCK time simultaneity among themselves. HOW would you back calculate it though? Even if we set aside my questions about gravity above and just look at a case involving flat SR spacetime, your answer gives no details. If you have any procedure in mind, could you apply it to a simple example? Let's say Alice is sent on a ship that moves away from Bob on Earth on the day they are both born, and the ship moves with speed of 0.8c relative to the Earth, towards a planet 12 light-years away in the Earth's frame. Alice arrives at that planet when she is 9 years old, and at that point the ship immediately turns around and heads back towards Earth with a relative speed of 0.6c. Alice experiences the return journey to take 16 more years, so when she returns to Earth she is 25 years old, but Bob is 35 years old when they meet. Can you show me how to back-calculate how old Bob was when he was in the same moment of p-time as Alice turning 9 and her ship reaching the planet and turning around? So since p-time has no metric itself you can't just compare p-time t values because there are none. You have to back calculate clock times to determine in what current p-times they occurred. So that's how we determine whether any two events occurred a the same p-times or not. You should always be able to determine that even though you can assign a p-time t value because there are none because p-time doesn't have a metric. I have never asked you for a p-time value, I'm only interested in the question of which events are simultaneous in p-time. I don't think your answers so far have made it clear that you have any well-defined procedure for determining this,
Re: Block Universes
Jesse, A simple example: Suppose A and B. Assume no relative motion but A is in a gravitational well that makes his clock runs 1/2 the speed of B's clock. Assume both clocks were synchronized when the gravitational field at A suddenly turned on. In this simple case both A and B were in the same present moment prior to the gravitational field turning on and both their clocks t and t' read time=0 when it turned on. After the field turns on then whenever tx2 = t' then A and B will be in the same moment of p-time. Note that will be ALL the time, because all observers are always at the same moment of p-time. But it is simple to determine what A and B were doing at all past moments of p-time by this method. This simple example will at least illustrate the method which can be applied to all other relativistic calculations. Note that all observers and everything is always at the same universal moment of p-time, so it's just a matter of figuring out what their various clock time t-values are or were at that synchrony. But from an observational test it's always simple to know what clock time of your comoving clock and all clocks in that same frame. All you have to do is look at the clocks and read them and whatever they read is always the clock time reading of the current moment of p-time, because everything always is in that moment. In fact it is only possible to read a clock IN the present moment, so you know that whatever clock you actually read, that is always the clock time of that clock that corresponds to the current p-time moment. Edgar On Saturday, February 8, 2014 5:28:08 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back calculate to determine which clock times of any two observers occurred in the same current p-time SIMULTANEITY even when those observers cannot agree on CLOCK time simultaneity among themselves. HOW would you back calculate it though? Even if we set aside my questions about gravity above and just look at a case involving flat SR spacetime, your answer gives no details. If you have any procedure in mind, could you apply it to a simple example? Let's say Alice is sent on a ship that moves away from Bob on Earth on the day they are both born, and the ship moves with speed of 0.8c relative to the Earth, towards a planet 12 light-years away in the Earth's frame. Alice arrives at that planet when she is 9 years old, and at that point the ship immediately turns around and heads back towards Earth with a relative speed of 0.6c. Alice experiences the return journey to take 16 more years, so when she returns to Earth she is 25 years old, but Bob is 35 years old when they meet. Can you show me how to back-calculate how old Bob was when he was in the same moment of p-time as Alice turning 9 and her ship reaching the planet and turning around? So since p-time has
Re: Block Universes
On Sat, Feb 8, 2014 at 7:07 PM, Edgar L. Owen edgaro...@att.net wrote: Jesse, I gave you a clear easy to follow and understand procedure that I believe works in every case to determine if any two clock time labeled events occurred in the same p-time moment or not. No you didn't, because you just used the phrase back calculate without explaining what that entails. I'm sorry if you don't see how it works. I don't see how I can make it much clearer. By explaining how you would back calculate Bob's age at the same moment in p-time that Alice turned 9. Or at the very least, telling me what the answer would be in this case. It's just applying standard relativity calculations. Standard relativity calculations tell you what age Bob was at the same moment in p-time that Alice turned 9? Relativity doesn't include p-time, and different frames with different definitions of simultaneity will disagree about what age Bob was at the same time that Alice turned 9. You don't have to do them backwards BTW. If you start with A and B in the same frame, they will automatically be in the same p-time present moment When you say automatically be in the same p-time present moment do you mean that if they both turn 40 simultaneously in their mutual rest frame, this automatically means they turn 40 simultaneously in p-time, even if they are not at the same spatial location? so you can do the math forward from there to establish the same p-times for all different clock time of A and B when one starts to travel. That's simple standard relativistic calculations. Again, standard relativistic calculations don't say anything about p-time, and you didn't specify a particular frame you want to do calculations in, so it's totally unclear what you mean here. I don't have time to start doing calculations for you Please just tell me Bob's age that is simultaneous in p-time with Alice turning around, it will help me clarify what you might mean by your confusing phraseology. For example you mean that since they both started out at rest in Bob's frame, it will be whatever age is simultaneous in *that* frame with Alice turning 9? In Bob's rest frame, he turns 15 simultaneously with Alice turning 9, so are those events also simultaneous in p-time? but the procedures I gave you are standard relativistic calculations that should enable you to determine which clock time labeled events occurred at the same p-times if you want. It doesn't, your allusions to standard relativistic calculations are too vague since all relativistic calculations of simultaneity are frame-depedent but you haven't specified a frame. And of course, you have also COMPLETELY avoided the issue of what calculations we'd do to determine p-time simultaneity in a case where gravity is involved. Jesse Edgar On Saturday, February 8, 2014 5:28:08 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edga...@att.net wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/ baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back
Re: Films I think people on this forum might like
I've been following this thread with some interest, waiting for one movie to be invariably mentioned among this crowd, and surprised that it hasn't been yet: Waking Life by Richard Linklater. Not only would members of this list like this movie, they would also be reminded of the different kinds of conversations that go on here. It could even be interpreted as a kind of visualization of the QIT. The only person on this list who might not like it is John Clarke, since it is filled with references to so many useless, deadbeat, unproductive and non-contributing philosophers and one of the many pre-occupations of the film is that utterly meaningless ASCII sequence/noise free will (blech, I threw up a bit in my mouth just typing those nine characters, that's how abhorrent and senseless the notion is). Also, it is a cartoon, and I'm pretty sure he would have stopped watching anything so stupid since Grade 6, or when he was 12, or something. And most importantly, it didn't win any awards and was not on anyone's top ten list, at least, not anyone who counts as having valuable opinions about quality movies. But for the rest of you, I strongly recommend you check it out! -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On Saturday, February 8, 2014 2:57:44 PM UTC, Edgar L. Owen wrote: Liz, No, that's not my idea. See my proximate reply to Ghibbsa. Edgar I wusn't messin' with your idea man promise! I was just ranting away full of good intentions but basically a bit sick in the head. On Saturday, February 8, 2014 3:15:42 AM UTC-5, Liz R wrote: I think Edgar's basic idea is that there is a plane of simultaneity which sweeps through space-time, and that all events in space time intersect with it - for example an astronaut moving at 0.9c will be intersecting it at the same time as his twin on Earth, but intersecting it at an angle that means his clock runs at a different rate. Or something like that. This hyperplane appears to be the rest frame of the CMBR (probably) and orthogonal to the expansion of the universe in 5 dimensions, ignoring the bumpy bits. On 8 February 2014 20:59, ghi...@gmail.com wrote: On Saturday, February 8, 2014 7:26:45 AM UTC, ghi...@gmail.com wrote: On Saturday, February 8, 2014 6:06:17 AM UTC, Brent wrote: On 2/7/2014 9:50 PM, ghi...@gmail.com wrote: But the question then remains the same, and the process of dealing with it doesn't change in principle either. We would keep looking for ways to deal with the problems that keep the steer on the goal which is best efforts to see a sense, starting general, that edgar's insight can be true. What is Edgar's insight? Can you explain it? All I've seen is that observers at the same event are at the same place and time - which is trivially the meaning of at the same event. His other insight, that distance relations are not fundamental but are derived from some kind of alignment of frames, sounds more interesting. Many people have noticed that you can define space just by sending light signals between observers with clocks, which is a way of aligning the clocks so they define and inertial frame. Brent I strongly doubt I'm the best person to be saying what his insight is. What I'm trying to contribute is more an outline method aligned with goals and making explicit what's already implicit anyway. I have stuck with p-time because that's the simplest thing that he himself seems to offer as the make or break insight his whole theory stands or falls on. I hadn't even picked up the insight you just mentioned. If you think that's more interesting, go with that for sure, no problem. I don't even understand that one clearly. So I'll answer your question 'what is his insight' in terms of p-time but only because I feel better equipped to speak of that one. The answer is, the good news of following a method like I suggest, is that it takes the meaning right out of his hands, eliminating the anyway unrealistic dependence that we manage to align with whatever is actually in his head. All we need is the minimum indivisible core of some sense a universal 'now' could be true. Really, it doesn't have to be edgar's idea of either universal, or 'now' or even be about time in the end. So long as we build everything we are doing, for edgar, with edgar, in terms of edgar, in at the level of method, which we can do by basically enshrining the principle we help the guy the best way for this to work out well for him. Translating to a principle of seeking the strongest sense his idea can be true, which includes within that all senses of how it might be made true, including removing dependencies he happens to believe are built in but which we in fact discover can be totally decoupled. That's my best guess for your answer. Final word from me: The only new distinction I'm proposing that isn't already what Edgar is saying and not already a 'fact on the ground' given so much time is already being given to this, is that we seek to formalize things a little bit by getting clear, what is already effectively in play, and seeking to reinforce whatever that is by some basic principles that can be enshrined in method because that's the generally accepted best way to ensure on-going consistency. The outcome I have proposed assumes the goal is sort of, positive in the extreme, and everything else rolls from that. But another totally legitimate outcome would be that having stopped to collectively think about this, people throw up their arms and say what the fuck are we doing giving all this freakin' attention to such an undeserving idea that is clearly totally screwy and wrong. That would be perfectly legitimate too. If the garbage needs to be taken out and the collective insight is that is Edgar and his ideas, then it's best for him too that he can know that cleanly and make his own mind up the merits on which it was based, and keep open for himself that he focuses on searching for a fairer bunch of folk to get his idea considered. That's fine. I can definitely vouch for that outcome as totally in the
Re: Films I think people on this forum might like
Not sure if that's a recommendation or just a chance to let off steam but anyway - thanks, I will try to get hold of that. On 9 February 2014 13:34, freqflyer07281972 thismindisbud...@gmail.comwrote: I've been following this thread with some interest, waiting for one movie to be invariably mentioned among this crowd, and surprised that it hasn't been yet: Waking Life by Richard Linklater. Not only would members of this list like this movie, they would also be reminded of the different kinds of conversations that go on here. It could even be interpreted as a kind of visualization of the QIT. The only person on this list who might not like it is John Clarke, since it is filled with references to so many useless, deadbeat, unproductive and non-contributing philosophers and one of the many pre-occupations of the film is that utterly meaningless ASCII sequence/noise free will (blech, I threw up a bit in my mouth just typing those nine characters, that's how abhorrent and senseless the notion is). Also, it is a cartoon, and I'm pretty sure he would have stopped watching anything so stupid since Grade 6, or when he was 12, or something. And most importantly, it didn't win any awards and was not on anyone's top ten list, at least, not anyone who counts as having valuable opinions about quality movies. But for the rest of you, I strongly recommend you check it out! -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On 9 February 2014 04:18, Edgar L. Owen edgaro...@att.net wrote: Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. What is this 'rate' ? Is it like 'time' ? -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Jesse, Consider another simple example: A and B in deep space. No gravity. Their clocks, t and t', are synchronized. They are in the same current p-time moment and whenever t = t', which is always their clock times confirm they are the same current p-time as well as the same clock time. Now magically they are in non-accelerated relative motion to each such that each sees the other's clock running half as fast as their own. During the duration of the relative motion whenever A reads t = n on his OWN clock and B reads t'=n on his OWN clock they will be at the same current moment of p-time. They can use this method later on to know what they were doing at the same present moment. Note however that both A and B will be seeing what each other was doing not at the present moment but in the past because they observe each other's clocks to run only half as fast as their own. They cannot directly observe the other's actions in the same p-time moment but they can calculate them. Now imagine the relative motion suddenly stops without any acceleration (this is just a thought experiment to keep things simple and easier to understand). Now both A and B will again be stationary with respect to each other and their clocks will be running at the same rate again AND they will still be synchronized (because the relative motion caused no lasting effect when it stopped). Now again their same clock times will mark them being in the same current moment of p-time whenever t = t' which will again be ALL the time. So they were always in the same current moment of p-time, and always when t = t' on their own clocks, but they saw each other's clocks slow and so could not see what each other was doing in the current moment of p-time (they see what each other was doing in a past current moment of p-time) when in relative motion. They could not observe the other's current p-time but they could calculate it and after the trip could tell exactly what each other was doing at every moment of p-time during the relative motion just by asking what they were doing at any clock time t value. Thus there is always an actual p-time 'same time' whether or not it is observable or not. All observers in the universe are always doing something at the same time all other observers are, and using this method they can always tell what that was... Edgar On Saturday, February 8, 2014 5:28:08 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edga...@att.netjavascript: wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a statement of the form the twins were in the same current moment of p-time when A read his own clock as A-t and B's clock as B-t, AND B read his own clock as B-t' and read A's clock as A-t'. In this case A-t will NOT = A-t', and B-t will NOT = B-t', but they will have specific back calculable t values for every current p-time during the trip. Thus if we have all the details of that trip's motion we should always be able to back calculate to determine which clock times of any two observers occurred in the same current p-time SIMULTANEITY even when those observers cannot agree on CLOCK time simultaneity among themselves. HOW would you back calculate it though? Even if we set aside my questions about gravity above and just look at a case involving flat SR spacetime, your answer gives no details. If you have any procedure in mind,
Re: Block Universes
Liz, See my other post that discusses the minimum p-time cycle time must be less than the minimum possible interval of events, where I discuss that... Edgar On Saturday, February 8, 2014 7:49:03 PM UTC-5, Liz R wrote: On 9 February 2014 04:18, Edgar L. Owen edga...@att.net javascript:wrote: Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. What is this 'rate' ? Is it like 'time' ? -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Real science versus interpretations of science
On Saturday, February 8, 2014 3:41:14 PM UTC, Platonist Guitar Cowboy wrote: On Sat, Feb 8, 2014 at 12:52 AM, ghi...@gmail.com javascript: wrote: On Friday, February 7, 2014 6:36:21 PM UTC, ghi...@gmail.com wrote: On Friday, February 7, 2014 4:50:39 PM UTC, ghi...@gmail.com wrote: On Thursday, February 6, 2014 9:09:23 PM UTC, Platonist Guitar Cowboy wrote: On Thu, Feb 6, 2014 at 5:31 PM, Edgar L. Owen edga...@att.net wrote: Ghibbsa, Boy O boy. Reread my post to you. It was completely complementary, only to be met not with appreciation but with snide remarks and accusations. Anyway I officially withdraw it as it was obviously in error... Then the registrars, board of directors, volunteer representatives, unions, bureaucrats, technicians, warriors, and brave souls maintaining the ring of everything-listers, not including yours truly lazy in this regard, *officially decree*, with dueness in forthright diligence, AND purposefully noting the swearing protocolization of plaintiff's withdrawal of an overly ardent compliment to himself by himself, due to an error in the plaintiffs overestimation of himself, projecting his own awesomeness onto critical encouragement by the forgiving defendant in form of a normal post outside of p-time, as everyone is prone to commit from time to time, is noted and archived according to protocols of the appropriate paragraphs and sections. Howeveriver, this official withdrawal marking a landmark turn of events on this list, whencewithforthnight for now appeased, the angry souls of plaintiff's retract-rebuttalized error of unity in comradery-mass-dorkification of the rest of the members of this noble-bloat house of postingoods, unsearchable by any known box or tab, logical and otherwise, now cast into the iron lightning of Odin's dong song with a single post into the eternity of P-time. Hencewithtoforthcoming, all will change in the realized interpretations of Science because of the gravy gravity of this officialized, sealed, notarized, proof-read, nsa devoured, spamificationationalizeducation of the rest of the dumb list for we all like the gravy bit, unless we are greenitarian, which remains solemnly, in the light of day, a dark matter of information-urination from black holes spun out of standards more than blocks of verses singing in unison of angry hawks and birds. All rejoice and thank the Edgar, as well and more the forgiver, foreverchangeternally p-time of the past, present, future and on the left. Seeriousee? Clarification between the real and interpretation has been achieved in this thread. Thank you all. From the heart. Officially. PGC yep...very cool post. I couldn't work out who came out worse in your judgements. You weren't too happy with me in FoAR so we have form. You do say I am to be thanked as well and more so, but on the other hand you send him up much more. But hey, that could be because his speciousness has a lot more substance to send up. Which kind of makes him better in your eyes. One could worry forever, but really one would have to be an asshole to really that much of fuckat least for that to matter whether or not something is a good post. What I'd throw back is my perception of you is that you're basically a snob That's like throwing narcissism at people who surf the web. Of course I have to be snob if I write fiction and compose it musically: I'd have nothing to say without my own biases. But the same can be said of any scientific stance, regardless of interpretation (on topic btw): you're elitist towards some ideas and think other ideas aren't quite your cup of tea, and so defending your ideas is natural. Welcome to the web. I don't mind being sent upand everyone knows resorting to the flat tone gormless yeah...well...you're a bloody snob aren't you is the mark of defeat :o) My last post was merely bad extemporaneous non P-time prose, because I'm bored of giving sincere replies just for getting slapped by another Edgar comment, when he has taken the floor so often and failed to address basic objections to his ideas; instead throwing authoritative and infantilizing insults, always followed by some smiley emoticon to trivialize the transgression. So fine, he likes to play this game where he pushes everybody's buttons and then goes oh, I don't know why everybody here is so touchy, concerning his book, of all things. You gave an entertaining post, and everyone always deserves to be sent up. I responded like a big girl's blouse. What can I say. Him liking this game, I thought he wouldn't mind some of this, obfuscated in prose, because he doesn't take things as seriously as everybody else here, who have some faith axe to grind instead of being reasonable. What I got as a reply was simply You're idea of science is sci-fi + you're a snob. I have no
Re: Better Than the Chinese Room
On 7 February 2014 07:47, Bruno Marchal marc...@ulb.ac.be wrote: Well, I *could* be a zombie and still say that, unless you consider the idea of zombies contradictory (which maybe it is). I bet you are not a zombie. But you seem to illustrate my point, if epiphenomenalism is true, despite you are not a zombie, you could be one, and that is a step toward the elimination of the person. I know I'm not a zombie, but you don't know that. I don't know how you would bet on it either, since you could not prove it in order to get your payout! The most you can know is that if a certain substitution is made in by brain then *if* I am conscious I will continue to be conscious. You could say I have headache, which is a first person experience, and, for that reason I will take an aspirin, yet the existence of that first person headache is not used by my brain to make me taking the aspirin. That seems close to non-sense to me. It prevents you to be a zombie, but makes you deluded in all high level person behavior. A zombie would take an aspirin as well, wouldn't it? Otherwise its zombie deception would be obvious. Sure, he would take aspirin, coffee, and many things. We do agree on the definition of zombie. They act like any acting human. By definition p-zombiness is not behaviorally detectable. In fact, we don't even need to talk on consciousness. I think it makes sense to say that a program can have a high level causal efficacy, even when the behavior does not violate the laws of physics or arithmetic which supports that high level efficacy. For example, nobody will say that Deep Blue win the chess tournament, because this NAND receives this inputs and then (followed by a lengthy description of all the low level happenings). We will explain deep blue behavior in terms of most of its high level ability. We will say he lost that game because he did not recognize that his opponents has made a Nimzovitch entry, or he win that game because it tested more possibilities than the opponents. That will be the real (or more genuine) explanation, both for the computer scientists who programmed deep blue, and for the chess players. Indeed the use of the NAND gates are somehow entirely irrelevant, we could have programmed deep blue on another type of machine. As complex entities, we need to have higher level description and explanation, and are necessarily ignorant of our lower levels, which might only be the support of our explanation, and is different from the more genuine high level explanation. In that way, we can recover the sense of I take an aspirin because I have a persistent headache since the morning. God might know that your body takes an aspirin because it obeys to SWE equation, but the SWE is only a context in which a person with a first person headache experience can take an aspirin. It is not the cause or the explanation of your behavior. You need to be God, to say that your consciousness has no role, and from God's view, I can make sense, but everything get wrong, hereby, simply because we are not in that God position. OK? I don't really disagree with any of that, but I would still say that chess program makes moves due to the activity of electrons in semiconductors, You remain locally correct, but that is less easy to do for oneself (as you don't know the level), and if you make consciousness having no role, because its role is subdue to some material causality, then with comp matter will be doubly eliminated, as it will become the illusion of an epiphenomenon. not because it is exercising a particular strategy except in a manner of speaking. But the substantive point I want to make is that there is no downward causation, I don't think there is any causation at all. Causation is a modal notion, and as to be treated indexically to, and with comp, in a way related to the many computations in arithmetic. for if there were we would observe magical events. If you accept that then I agree with you, any apparent disagreement is really just semantics. We must still discuss if this is very semantics. Some higher level laws can be quite autonomous relatively to lower level laws, and some downard causation, even if reductible in theory to particles or numbers, remains meaningful at his own level. Downward causation would involve, for example, a neuron spontaneously firing when all the biochemical parameters show that it should not. That would be something miraculous. It has never been observed, or we would know there is something very wrong with science. -- Stathis Papaioannou -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at
Re: Better Than the Chinese Room
On 8 February 2014 05:03, Craig Weinberg whatsons...@gmail.com wrote: If there were identical triplets, and one of them grew up on the other side of the world and spoke a different language, while the others grew up in the same state and spoke the same language, do you think that a neuroscientist could figure out with certainty which triplet spoke the other language (not by looking at trace compounds that would identify a geographic region, etc, but strictly by the vast number of different words and phrases that they use)? It's an assumption in science that the language difference is due to brain difference. That's not to say that our techniques are at present refined enough to see a difference, but there must be one if language is due to the brain. -- Stathis Papaioannou -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: A theory of dark matter...
On Saturday, February 8, 2014 3:36:08 PM UTC, Edgar L. Owen wrote: Brent, and Liz, We have to be careful in our choice of words here. It is quite clear that e.g. during relative motion of frames A and B, that each sees the other's clock running slower. So the two frames DO NOT give the same results here. However when one twin returns with a different clock time and STOPS both twins agree on the resulting different clock times. Relativity says this is due to the acceleration of the traveling twin. But my question is 'acceleration relative to WHAT?' Acceleration is relative to itself yeah? meters per second -- per second squared. And the speed of light. The very notion of acceleration (including that of Newton's bucket) assumes there is an absolute background space in some sense that acceleration is relative to. no it doesn't big doughnut :o) Edgar, mate, you must know what you've learned and what you haven't? This is a serious science list mate...there's academics here, people doing Phd's. You should know what you know, so be sensible. Edgar I have a theory to explain this by the way spacetime is created by quantum events and thus must take on aspects of the frames of the events that create it. The cumulative large scale effect of this is to produce a very particular notion of absoluteness roughly aligned with the distribution of the mass of the universe. This because that mass undergoes the quantum events that produce the space that mass resides in. This explains why Mach Principle that the rotational acceleration of Newton's bucket is with respect to the cosmological mass of the universe is roughly correct. But it provides an actual theory for why this is true. Edgar On Friday, February 7, 2014 9:06:43 PM UTC-5, Brent wrote: On 2/7/2014 5:53 PM, ghi...@gmail.com wrote: On Friday, February 7, 2014 10:34:50 PM UTC, Edgar L. Owen wrote: Ghibbsa, Well yes, basically that's it. The question I have is why we have to choose one frame over the other to get the correct results. You don't. But in almost all cases there is a frame in which it is easy to apply the equations, one that takes advantage of symmetries and leaves out negligible effects. So you do the analysis is that frame and then you transform the answer if necessary to some other frame of interest. But in general what you're interested in is frame independent: Did the spaceship rendezvous with the planet or miss it? Did the tank fall in the pit or not? To do the transformation you have to know how things transform, which for inertial frames in flat spacetime is by Lorentz transformations, i.e. those that leave lightcones invariant. Brent -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
THIS LIST HAS TURNED ME ON TO......
RELATIVITY THEORY I love it...I'm being reeled in by it. A lot of people here have said really weird and wonderful things. A couple of things have been talked about as if fundamental, that I'm betting is not fundamental. A lot of other questions have been coming up for melike is space-time a metaphor, albeit one which works extremely well. The reason I'm wondering is because spacetime geometry is very intuitive. How do we know...are there any predictions that would only be whatever if spacetime was a metaphor. And what about Liz? She tried to sell me the Blocktime Bridge the other night. But seriously, I basically want to thank people for turning me on to one of our greatest theories. In the end that's the right way that things should pan out. The other theories are good...and people often have their own. It's all good, so long as the journey is where most of the value is. But in the end, loving science is about worshipping the greatest works of science. I was kind of starting to forget that. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On Sat, Feb 08, 2014 at 07:18:06AM -0800, Edgar L. Owen wrote: Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. The only real measure of that is how it manifests in the computations it produces because only they have any measure because only they have dimensionality. Again whenever we try to measure p-timel we end up measuring only what it has computed because only what it computes has measure including all measuring sticks, clocks and devices. P-time computes all dimensionality, and all measuring devices. Thus those measuring devices only measure other things that have been computed, not the p-time that computes them all. Thus when I speak of a processor 'rate', it's only an illustrative analogy because that rate has no direct measure. The only glimpse we get of it is in the minimal quanta of time measured in clock time, and presumably the curvature of the universe. So in clock time terms the p-time processor cycle must be very short, on the scale of what scientists misleadingly call the Planck time scale. The p-time processor rate must obviously be fast enough to compute all events in clock time, so in CLOCK time measures, the duration of a p-time processor cycle must be shorter than the shortest clock time event. Edgar Let me see if I've got your idea now: you suppose that there is some primitive ontological computer running a specific program that computes all physical events on the fly, perhaps like Wolfram's CA. Then for any events, there must be a specific clock cycle on which it is computed, and for any two events, there is a matter of fact whether event A is computed prior to event B (or vice verse), or that the two events are computed simulatenously, in case the ontological computer is a parallel computer with synchronous updates (like Wolfram's model). Is this close to your idea of p-time? Of course there are many criticisms to this, if that is the case: 1) If something like the universal dovetailer is implementing our physics, then there is no matter of fact as to which order events are computed, as there are many different equivalent programs for computing something that are being emulated by the dovetailer. This is the essence of the UDA. 2) Even if it were a direct compution of reality a la Wolfram, an asyncronously updating parallel computer need not have a matter of fact to whether A is computed before B, just so long as the relativistic causal structure is preserved. Cheers -- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics hpco...@hpcoders.com.au University of New South Wales http://www.hpcoders.com.au -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On 9 February 2014 14:10, Edgar L. Owen edgaro...@att.net wrote: Liz, See my other post that discusses the minimum p-time cycle time must be less than the minimum possible interval of events, where I discuss that... So I assume that's a yes, then. Edgar On Saturday, February 8, 2014 7:49:03 PM UTC-5, Liz R wrote: On 9 February 2014 04:18, Edgar L. Owen edga...@att.net wrote: Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. What is this 'rate' ? Is it like 'time' ? -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Better Than the Chinese Room
On Saturday, February 8, 2014 8:47:26 PM UTC-5, stathisp wrote: On 7 February 2014 07:47, Bruno Marchal mar...@ulb.ac.be javascript: wrote: Well, I *could* be a zombie and still say that, unless you consider the idea of zombies contradictory (which maybe it is). I bet you are not a zombie. But you seem to illustrate my point, if epiphenomenalism is true, despite you are not a zombie, you could be one, and that is a step toward the elimination of the person. I know I'm not a zombie, but you don't know that. You might know it intuitively, but not be able to justify it logically. Craig I don't know how you would bet on it either, since you could not prove it in order to get your payout! The most you can know is that if a certain substitution is made in by brain then *if* I am conscious I will continue to be conscious. You could say I have headache, which is a first person experience, and, for that reason I will take an aspirin, yet the existence of that first person headache is not used by my brain to make me taking the aspirin. That seems close to non-sense to me. It prevents you to be a zombie, but makes you deluded in all high level person behavior. A zombie would take an aspirin as well, wouldn't it? Otherwise its zombie deception would be obvious. Sure, he would take aspirin, coffee, and many things. We do agree on the definition of zombie. They act like any acting human. By definition p-zombiness is not behaviorally detectable. In fact, we don't even need to talk on consciousness. I think it makes sense to say that a program can have a high level causal efficacy, even when the behavior does not violate the laws of physics or arithmetic which supports that high level efficacy. For example, nobody will say that Deep Blue win the chess tournament, because this NAND receives this inputs and then (followed by a lengthy description of all the low level happenings). We will explain deep blue behavior in terms of most of its high level ability. We will say he lost that game because he did not recognize that his opponents has made a Nimzovitch entry, or he win that game because it tested more possibilities than the opponents. That will be the real (or more genuine) explanation, both for the computer scientists who programmed deep blue, and for the chess players. Indeed the use of the NAND gates are somehow entirely irrelevant, we could have programmed deep blue on another type of machine. As complex entities, we need to have higher level description and explanation, and are necessarily ignorant of our lower levels, which might only be the support of our explanation, and is different from the more genuine high level explanation. In that way, we can recover the sense of I take an aspirin because I have a persistent headache since the morning. God might know that your body takes an aspirin because it obeys to SWE equation, but the SWE is only a context in which a person with a first person headache experience can take an aspirin. It is not the cause or the explanation of your behavior. You need to be God, to say that your consciousness has no role, and from God's view, I can make sense, but everything get wrong, hereby, simply because we are not in that God position. OK? I don't really disagree with any of that, but I would still say that chess program makes moves due to the activity of electrons in semiconductors, You remain locally correct, but that is less easy to do for oneself (as you don't know the level), and if you make consciousness having no role, because its role is subdue to some material causality, then with comp matter will be doubly eliminated, as it will become the illusion of an epiphenomenon. not because it is exercising a particular strategy except in a manner of speaking. But the substantive point I want to make is that there is no downward causation, I don't think there is any causation at all. Causation is a modal notion, and as to be treated indexically to, and with comp, in a way related to the many computations in arithmetic. for if there were we would observe magical events. If you accept that then I agree with you, any apparent disagreement is really just semantics. We must still discuss if this is very semantics. Some higher level laws can be quite autonomous relatively to lower level laws, and some downard causation, even if reductible in theory to particles or numbers, remains meaningful at his own level. Downward causation would involve, for example, a neuron spontaneously firing when all the biochemical parameters show that it should not. That would be something miraculous. It has never been
Re: Block Universes
On Sunday, February 9, 2014 3:44:09 AM UTC, Russell Standish wrote: On Sat, Feb 08, 2014 at 07:18:06AM -0800, Edgar L. Owen wrote: Liz, No 5D embedding space. The rate of expansion is just the intrinsic processor cycle 'rate'. The only real measure of that is how it manifests in the computations it produces because only they have any measure because only they have dimensionality. Again whenever we try to measure p-timel we end up measuring only what it has computed because only what it computes has measure including all measuring sticks, clocks and devices. P-time computes all dimensionality, and all measuring devices. Thus those measuring devices only measure other things that have been computed, not the p-time that computes them all. Thus when I speak of a processor 'rate', it's only an illustrative analogy because that rate has no direct measure. The only glimpse we get of it is in the minimal quanta of time measured in clock time, and presumably the curvature of the universe. So in clock time terms the p-time processor cycle must be very short, on the scale of what scientists misleadingly call the Planck time scale. The p-time processor rate must obviously be fast enough to compute all events in clock time, so in CLOCK time measures, the duration of a p-time processor cycle must be shorter than the shortest clock time event. Edgar Let me see if I've got your idea now: you suppose that there is some primitive ontological computer running a specific program that computes all physical events on the fly, perhaps like Wolfram's CA. Then for any events, there must be a specific clock cycle on which it is computed, and for any two events, there is a matter of fact whether event A is computed prior to event B (or vice verse), or that the two events are computed simulatenously, in case the ontological computer is a parallel computer with synchronous updates (like Wolfram's model). Is this close to your idea of p-time? Of course there are many criticisms to this, if that is the case: 1) If something like the universal dovetailer is implementing our physics, then there is no matter of fact as to which order events are computed, as there are many different equivalent programs for computing something that are being emulated by the dovetailer. This is the essence of the UDA. 2) Even if it were a direct compution of reality a la Wolfram, an asyncronously updating parallel computer need not have a matter of fact to whether A is computed before B, just so long as the relativistic causal structure is preserved. Cheers Which is everything hangs on p-time. It's a uber simplification. We are all taking our bets I suppose, and different ways to be realistic. One of mine is to strengthen the tie between realism and core theories. Not just the theories as their forces, but what else is said about nature in how things are done. In terms of that, the picture is of beautiful, parsimonious, fractallike, richly interweaved, fundamentally mathematical, inherently knowable. That's my world. Then out to the edge, everything is infinities in every direction. It can't be understood intellectually. I turn to art. Paint the frontiers, string theory knackers yards. brains and their higher consciousness. The world that has everything where nothing ever happens. It's hideous. My paintings are awesome. I'm the only one painting the frontier. I'm going to wait for the day it all gets torn down, I have a false ear purchased already. I will use my art wealth to push hard to make infinity a class A drug -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: A theory of dark matter...
On 9 February 2014 04:36, Edgar L. Owen edgaro...@att.net wrote: Brent, and Liz, We have to be careful in our choice of words here. It is quite clear that e.g. during relative motion of frames A and B, that each sees the other's clock running slower. So the two frames DO NOT give the same results here. However when one twin returns with a different clock time and STOPS both twins agree on the resulting different clock times. Relativity says this is due to the acceleration of the traveling twin. But my question is 'acceleration relative to WHAT?' The very notion of acceleration (including that of Newton's bucket) assumes there is an absolute background space in some sense that acceleration is relative to. I believe Newton's bucket is normally taken to rotate relative to distant masses - i.e. it obeys Mach's Principle. But imagine a bucket rotating in space, in a universe with dark energy pushing everything else away faster and faster. Eventually there is nothing within the bucket's event horizon, it's alone in an empty universe. Does the water in the bucket suddenly (or gradually) stop forming a paraboloid as mass disappears, and become flat? (I'd say not, but I could be wrong...) We're assuming no friction, so the bucket rotates until frame dragging slows it down, far into the future. Or we could make it a neutron star if we prefer. Does it stop being an oblate spheroid when the last mass vanishes over its event horizon? Hm. Interesting. I hadn't thought about this before, but it seems to me this particular thought experiment indicates that there *is* some background spacetime framework, because how can the bucket know that distant masses - that it can still see (I think) - have crossed its cosmic horizon? Maybe someone with a better grasp of cosmology can comment on this one, and the implications (if any). -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
Heh heh. Have you ever read The Hole In The Zero by M K Joseph? On 9 February 2014 17:17, ghib...@gmail.com wrote: It can't be understood intellectually. I turn to art. Paint the frontiers, string theory knackers yards. brains and their higher consciousness. The world that has everything where nothing ever happens. It's hideous. My paintings are awesome. I'm the only one painting the frontier. I'm going to wait for the day it all gets torn down, I have a false ear purchased already. I will use my art wealth to push hard to make infinity a class A drug -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Real science versus interpretations of science
On 9 February 2014 14:31, ghib...@gmail.com wrote: Nothing phazes Edgar lol. Edgar is like our very own Saga Norén. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Turing Reductio ad Absurdum
How do you know that you are really reading these words? People misread things all the time. Maybe it just feels like you are reading them? You could be having a brain aneurism. Logically, there is no way to prove that you are reading these words right now. The fact that you might not really be reading these words correctly (if at all) might be offensive to the real words. To avoid passing judgment on those other words, we must assume that it is no more likely that we are reading these words as it is that we are not. What is the logical way out of this? -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Real science versus interpretations of science
On Sunday, February 9, 2014 4:21:32 AM UTC, Liz R wrote: On 9 February 2014 14:31, ghi...@gmail.com javascript: wrote: Nothing phazes Edgar lol. Edgar is like our very own Saga Norén. I was getting these spasms of hilarity earlier on. Not very funny thoughts by normal standards. I suppose it about coming to a head. All I did was think about going on the thread and asking if anyone felt they had made any progress in their personal talking point with edgar. I guess it was the visual. But maybe the thought was enough. I could not stop laughing. It would've been ok but I was with wife/daughter at pizza express. Had to go sit in the toilet. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
The hole in zero is like the closed circular string which in two dimensions maps everything outside of it to its interior with a r-1/r mapping in every direction. If so then infinity is mapped to the center of the zero, like 1/0=infinity. On Sat, Feb 8, 2014 at 11:19 PM, LizR lizj...@gmail.com wrote: Heh heh. Have you ever read The Hole In The Zero by M K Joseph? On 9 February 2014 17:17, ghib...@gmail.com wrote: It can't be understood intellectually. I turn to art. Paint the frontiers, string theory knackers yards. brains and their higher consciousness. The world that has everything where nothing ever happens. It's hideous. My paintings are awesome. I'm the only one painting the frontier. I'm going to wait for the day it all gets torn down, I have a false ear purchased already. I will use my art wealth to push hard to make infinity a class A drug -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
Re: Block Universes
On Sat, Feb 8, 2014 at 8:07 PM, Edgar L. Owen edgaro...@att.net wrote: Jesse, Consider another simple example: A and B in deep space. No gravity. Their clocks, t and t', are synchronized. They are in the same current p-time moment and whenever t = t', which is always their clock times confirm they are the same current p-time as well as the same clock time. When you say synchronized, do you mean they are synchronized according to the definition of simultaneity in their mutual rest frame? As I asked before, if two clocks are at rest relative to one another and synchronized according to the definition of simultaneity in their mutual rest frame, do you automatically assume this implies they are synchronized in p-time? If so you are going to run into major problems if you consider multiple pairs of clocks where each member of a pair is at rest relative to the other member of the same pair, but different pairs are in motion relative to another...I will await a clear answer from you on this question before elaborating on such a scenario, though. Now magically they are in non-accelerated relative motion to each such that each sees the other's clock running half as fast as their own. Physics textbooks often consider examples where there are instantaneous accelerations such that the velocity abruptly changes from one value to another, with the objects moving inertially both before and after the instantaneous acceleration, is that the same as what you mean by magically they are in non-accelerated relative motion? During the duration of the relative motion whenever A reads t = n on his OWN clock and B reads t'=n on his OWN clock they will be at the same current moment of p-time. They can use this method later on to know what they were doing at the same present moment. Even if we assume instantaneous jumps in velocity, there are multiple ways they could change velocities such that in their new inertial rest frames after the acceleration, each would say the other's clock is running half as fast as their own. For example, in the frame where they were previously at rest, if each one's velocity symmetrically changed from 0 in this frame to 0.57735c in opposite directions in this frame, then in each one's new rest frame the other would be moving at 0.866c (since using the relativistic velocity addition formula at http://math.ucr.edu/home/baez/physics/Relativity/SR/velocity.html their relative velocity would then be (0.57735c + 0.57735c)/(1 + 0.57735^2) which works out to 0.866c), and a relative velocity of 0.866c corresponds to a time dilation factor of 0.5. But likewise, in the frame where they were previously at rest, it could be that one twin would remain at rest in this frame while the other would jump to a velocity of 0.866c in this frame, and then it would still be true that in each one's new rest frame the other is moving at 0.866c. Does your statement above that whenever A reads t = n on his OWN clock and B reads t'=n on his OWN clock they will be at the same current moment of p-time apply even in the case of asymmetrical changes in velocity? Are you saying all that matters is that in either one's new inertial rest frame, the other one's clock is ticking at half the rate of their own? Jesse On Saturday, February 8, 2014 5:28:08 PM UTC-5, jessem wrote: On Sat, Feb 8, 2014 at 4:01 PM, Edgar L. Owen edga...@att.net wrote: Jesse, Yes, I think there is always a way to determine if any two events happen at the same point in p-time or not, provided you know everything about their relativistic conditions. You do this by essentially computing their relativistic cases BACKWARDS to determine which point in each of their worldlines occurred at the same p-time. Take 2 observers, A and B. 1. If there is no relative motion or gravitational/acceleration differences you know that every point t in A's CLOCK time was in the same present moment as every point t' in B's CLOCK TIME when t=t'. And what if there *are* gravitational differences, if there are sources of gravity nearby and they are at different points in space? Gravity is dealt with using general relativity, and in general relativity there is no coordinate-indepedent way to define the relative motion of observers at different points in space (see discussion at http://math.ucr.edu/home/ baez/einstein/node2.html for details). And the only coordinate-independent definition of acceleration is proper acceleration (what an observer would measure with an accelerometer that shows the G-forces they are experiencing), but all observers in freefall have zero proper acceleration, so if you think there is a gravitational/acceleration difference between an observer orbiting far from a black hole and one falling towards it close to the event horizon, you can't quantify it using proper time. 3. In the case of twins DURING the trip in relative motion we can always back calculate the relativistic effects to make a
Re: Block Universes
Something like this? [image: Inline images 1] -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.