Re: "Spontaneous creation of the Universe Ex Nihilo"

Yes I came across that joke on the net... Op donderdag 13 november 2014 08:31:08 UTC+1 schreef Liz R: > > By the way, the sum of all the integers from 1 to infinity is not zero but > -1/12 > > https://www.youtube.com/watch?v=w-I6XTVZXww > -- You received this message because you are subscribe

Re: "Spontaneous creation of the Universe Ex Nihilo"

I've read it... well I've read parts of it anyway... I downloaded a copy from the net, I don't know if that's also the final book version of his Theory of Nothing... The problem is I'm not too good with mathematical and logical formalisms (I have dyscalculia, I mix the symbols up)... So what I

Re: "Spontaneous creation of the Universe Ex Nihilo"

By the way, the sum of all the integers from 1 to infinity is not zero but -1/12 [?] https://www.youtube.com/watch?v=w-I6XTVZXww -- 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

Re: "Spontaneous creation of the Universe Ex Nihilo"

Have you read Russell's "Theory of Nothing" ? If not, it could give you a better handle on this sort of thing. -- 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

Re: "Spontaneous creation of the Universe Ex Nihilo"

The authors want to give an information-theoretic answer to the question why there is something rather than nothing. They hold that the question is only answerable if one starts the explanation from a situation where nothing exists. They then give an information-theoretic account of nothing and

Two apparently different forms of entropy

There appears to be a discrepancy between entropy as it is ascribed to black holes and entropy in the form of configurations of mass-energy far from thermodynamic equilibrium. Black hole entropy appears to be a fundamental feature of physics, while the other sort only emerges due to coarse graining

Re: Reversing time = local reversal of thermodynamic arrows?

On 13 November 2014 17:42, Bruce Kellett wrote: > > Whatever the merits of that argument, it has little to do with the maximum > possible entropy. Rember, that occurs when all of the mass/energy is in the > form of black holes. We're a long way from that situation. In order to explain the AOT a

Re: Reversing time = local reversal of thermodynamic arrows?

LizR wrote: Well, yes, I knew someone would mention that when I typed it! And yes, I agree, the Beckenstein bound implies that - although isn't that dealing with information, rather than quantum states (leaving aside any it-from-bitness, at least) ? Or maybe the two are equivalent. I'm not su

Re: Reversing time = local reversal of thermodynamic arrows?

I've emailed Max to ask him how he gets out of this one (though not in exactly those words) so I am hoping to be elucidated. -- 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, sen

Re: Reversing time = local reversal of thermodynamic arrows?

Well, yes, I knew someone would mention that when I typed it! And yes, I agree, the Beckenstein bound implies that - although isn't that dealing with information, rather than quantum states (leaving aside any it-from-bitness, at least) ? Or maybe the two are equivalent. I'm not sure how (or if) Ma

Re: "The Span of Infinity"

On Wed, Nov 12, 2014 at 5:40 PM, Bruce Kellett > I find this whole notion of 'worlds' and of a 'split' intrinsically > ill-defined. What is split and what is not seems to depend more on what you > look at than what is objectively the case If, as many worlds says, everything that can happen does

Re: Reversing time = local reversal of thermodynamic arrows?

On Wed, Nov 12, 2014 at 6:35 PM, LizR wrote: > the number of quantum states available inside a given volume is > proportional to the volume Although it's counter intuitive the maximum number of quantum states you can put inside a sphere is actually proportional to the sphere's area not its volu

Re: "Spontaneous creation of the Universe Ex Nihilo"

On 11/12/2014 7:10 AM, Peter Sas wrote: Does anybody know this paper: http://www.sciencedirect.com/science/article/pii/S221268641300037X And is it any good? No. Brent -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from t

Re: "The Span of Infinity"

On 11 Nov 2014, at 22:18, Bruce Kellett wrote: > >> Bruno Marchal wrote: >> > If I tell you that I have thrown a coin, and put a dollar in one of two >> boxes according to the tail/head outcome. Send a box in Washington, and one >> in Moscow, and you open the box in Moscow, and find no dollar in

I assume everyone's up to speed with this?

http://www.bbc.com/news/science-environment-30026398 -- 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

Re: Reversing time = local reversal of thermodynamic arrows?

On 13 November 2014 11:29, Bruce Kellett wrote: > LizR wrote: > >> >> Why not? Informally, from a quantum viewpoint it makes more states >> available, in a manner similar to Max Tegmartk's calculation of how far >> away one's duplicate is in a level 1 multiverse. The analogy used by Paul >> Davie

Re: "The Span of Infinity"

Bruno Marchal wrote: On 12 Nov 2014, at 12:44, Bruce Kellett wrote: To loop back to another segment of this thread, we look at the speed of splitting of worlds. Start with the state |psi> = (|+> + |->) in some basis. Couple this to the apparatus |A> and the wider environment |E>: |psi>|

Re: Reversing time = local reversal of thermodynamic arrows?

LizR wrote: On 13 November 2014 00:15, Bruce Kellett > wrote: LizR wrote: On 11 November 2014 14:48, Bruce Kellett mailto:bhkell...@optusnet.com.au> >> wro

Re: "Spontaneous creation of the Universe Ex Nihilo"

Also the printout of the PDF is covered in little black squares which make it really hard to read. Did they use some nonstandard characters? (It looks like the hyphen, well assuming they hyphenate "Big Bang"...) This is taking "The Dark Universe" too far IMHO. -- You received this message becaus

Re: "The Span of Infinity"

On 13 November 2014 07:55, meekerdb wrote: > On 11/12/2014 12:07 AM, LizR wrote: > > Bell also realised that his inequality could be explained, while > preserving realism, locality and causality, by the quantum effects being > measured obeying time symmetry. If I remember correctly, and rather

Re: "The Span of Infinity"

On 13 November 2014 00:48, Bruce Kellett wrote: > LizR wrote: > > Bell also realised that his inequality could be explained, while >> preserving realism, locality and causality, by the quantum effects being >> measured obeying time symmetry. If I remember correctly, and rather oddly >> (given th

Re: "Spontaneous creation of the Universe Ex Nihilo"

On 13 November 2014 06:46, Bruno Marchal wrote: > On 12 Nov 2014, at 16:10, Peter Sas wrote: > > Does anybody know this paper: > http://www.sciencedirect.com/science/article/pii/S221268641300037X > > > It is pleasant to read, but I will wait what others can add, if it is > really more than a vari

Re: "The Span of Infinity"

On 11/12/2014 12:07 AM, LizR wrote: On 12 November 2014 20:32, Bruno Marchal mailto:marc...@ulb.ac.be>> wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have thrown a coin, and put a dollar in one of two boxe

Re: Reversing time = local reversal of thermodynamic arrows?

On 12 November 2014 21:22, Bruno Marchal wrote: > > On 12 Nov 2014, at 07:58, LizR wrote: > > On 12 November 2014 15:42, John Clark wrote: > >> On Mon, Nov 10, 2014 LizR wrote: >> >> > Physical processes obey the laws of physics. The 2nd law isn't a law of >>> physics. >> >> >> The 2nd law is

Re: Reversing time = local reversal of thermodynamic arrows?

On 13 November 2014 00:15, Bruce Kellett wrote: > LizR wrote: > > On 11 November 2014 14:48, Bruce Kellett > > wrote: >> >> >> The AoT exists regardless of such processes. >> >> I don't see how. The expansion made a state with no AOT turn >>

Re: "Spontaneous creation of the Universe Ex Nihilo"

On 12 Nov 2014, at 16:10, Peter Sas wrote: Does anybody know this paper: http://www.sciencedirect.com/science/article/pii/S221268641300037X It is pleasant to read, but I will wait what others can add, if it is really more than a variant of the vacuum fluctuation approach. It cannot satis

Re: "The Span of Infinity"

On 12 Nov 2014, at 12:44, Bruce Kellett wrote: Bruno Marchal wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have thrown a coin, and put a dollar in one of two boxes according to the tail/head outcome. Send a box in Washington, and one in Mo

Re: "The Span of Infinity"

On 12 Nov 2014, at 11:19, Richard Ruquist wrote: On Wed, Nov 12, 2014 at 4:08 AM, Bruno Marchal wrote: On 12 Nov 2014, at 09:07, LizR wrote: On 12 November 2014 20:32, Bruno Marchal wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have

Re: "Spontaneous creation of the Universe Ex Nihilo"

She seems a real sharpie in the physics business, and she quotes the big mahoffs' like Vlatko Vedral, and others. The nature of her creation from nothing seems troublesome, although like brandon carter pointed out, virtual particles, specifically electrons, positrons, and photons, do this all th

Re: "The Span of Infinity"

On 12 Nov 2014, at 10:49, Richard Ruquist wrote: On Wed, Nov 12, 2014 at 2:19 AM, Bruno Marchal wrote: On 11 Nov 2014, at 13:13, Richard Ruquist wrote: That seems contrary to EPR experiments where the split happens faster than the speed of light. There is no split. Only local differ

"Spontaneous creation of the Universe Ex Nihilo"

Does anybody know this paper: http://www.sciencedirect.com/science/article/pii/S221268641300037X And is it any good? -- 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 e

Re: "The Span of Infinity"

LizR wrote: On 12 November 2014 20:32, Bruno Marchal > wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have thrown a coin, and put a dollar in one of two boxes according to the tail/h

Re: "The Span of Infinity"

Bruno Marchal wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have thrown a coin, and put a dollar in one of two boxes according to the tail/head outcome. Send a box in Washington, and one in Moscow, and you open the box in Moscow, and find no

Re: Reversing time = local reversal of thermodynamic arrows?

LizR wrote: On 11 November 2014 14:48, Bruce Kellett > wrote: The AoT exists regardless of such processes. I don't see how. The expansion made a state with no AOT turn into one that had one, by cooling the plasma to the point where

Re: "The Span of Infinity"

On Wed, Nov 12, 2014 at 4:08 AM, Bruno Marchal wrote: > > On 12 Nov 2014, at 09:07, LizR wrote: > > On 12 November 2014 20:32, Bruno Marchal wrote: > >> >> On 11 Nov 2014, at 22:18, Bruce Kellett wrote: >> >> Bruno Marchal wrote: >>> If I tell you that I have thrown a coin, and put a dolla

Re: "The Span of Infinity"

On Wed, Nov 12, 2014 at 2:19 AM, Bruno Marchal wrote: > > On 11 Nov 2014, at 13:13, Richard Ruquist wrote: > > That seems contrary to EPR experiments where the split happens faster than > the speed of light. > > > There is no split. Only local differentiation of the first person > experience. Kee

Re: "The Span of Infinity"

On 12 Nov 2014, at 09:07, LizR wrote: On 12 November 2014 20:32, Bruno Marchal wrote: On 11 Nov 2014, at 22:18, Bruce Kellett wrote: Bruno Marchal wrote: If I tell you that I have thrown a coin, and put a dollar in one of two boxes according to the tail/head outcome. Send a box in Washin

Re: Reversing time = local reversal of thermodynamic arrows?

Hi Stephen, On 09 Nov 2014, at 14:30, Stephen Paul King wrote: Hi Alberto, you wrote: "There must not be a general arrow of time since time in general relativity is local not only in his value but also its direction AFAIK" Exactly! Time can be shown to be local for QM systems as we

Re: Reversing time = local reversal of thermodynamic arrows?

On 12 Nov 2014, at 07:58, LizR wrote: On 12 November 2014 15:42, John Clark wrote: On Mon, Nov 10, 2014 LizR wrote: > Physical processes obey the laws of physics. The 2nd law isn't a law of physics. The 2nd law is even more fundamental than a law of physics, it's more like a law of l

Re: "The Span of Infinity"

On 11 Nov 2014, at 21:55, John Clark wrote: On Mon, Nov 10, 2014 Richard Ruquist wrote > I questioned Bruno's statement that MWI universe splitting proceeds at the speed of light on the basis of EPR experiments which seem to suggest that the splitting proceeds faster than the speed of

Re: "The Span of Infinity"

On 12 November 2014 20:32, Bruno Marchal wrote: > > On 11 Nov 2014, at 22:18, Bruce Kellett wrote: > > Bruno Marchal wrote: >> >>> If I tell you that I have thrown a coin, and put a dollar in one of two >>> boxes according to the tail/head outcome. Send a box in Washington, and one >>> in Moscow