Re: Why Objective Values Exist

2007-08-28 Thread Torgny Tholerus

[EMAIL PROTECTED] skrev:

 (7)  From (3) mathematical concepts are objectively real.  But there
 exist mathematical concepts (inifinite sets) which cannot be explained
 in terms of finite physical processes.

How can you prove that infinite sets exists?

-- 
Torgny Tholerus



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Re: Why Objective Values Exist

2007-08-28 Thread Stathis Papaioannou

On 28/08/07, David Nyman [EMAIL PROTECTED] wrote:

  What if someone simply claimed that they couldn't see how circulation
  was the same as cardiovascular activity: they could understand that
  the heart was a pump, the blood a fluid, the blood vessels conduits,
  but the circulatory system as a whole was something emergent and not
  at all obvious, in the same way that mind was emergent. Alternatively,
  a superintelligent being could claim that the mind was as obviously
  the result of brain activity as circulation was the result of
  cardiovascular activity.

 Isn't the obvious (and AFAICS unanswerable) argument against this that
 'circulation' is merely a convenient shorthand for the specific set of
 underlying structures and processes, once these have been identified,
 even when this is not obvious a priori. One adds nothing
 *explanatorily* by applying the term to these processes, which stand
 by themselves for what is to be explained from the third-person
 perspective which fully suffices in this case.  But I don't see how
 even a superintelligent being could convince us that first person
 subjective experience is by any direct analogy *explained* merely by
 being equated to certain third person activities of the brain, with
 nothing further remaining to be accounted for.  IOW, even if we are
 inclined to accept on other grounds some sort of functional identity
 theory, we have made no further progress towards *explaining* the
 categorical uniqueness of the first person.

I'm not sure what the answer is. Some philosophers like Dennett and
Hofstadter claim that consciousness is simply a shorthand for the
activity of certain complex systems, not immediately obvious because
they are so complex. Maybe a thermostat has a protoconsciousness which
is no more than a description of what a thermostat does, and it is no
more possible to disentangle this quality from thermostat activity
than it is possible to disentangle thermostat activity from thermostat
activity.



-- 
Stathis Papaioannou

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Re: Why Objective Values Exist

2007-08-28 Thread marc . geddes



On Aug 28, 6:31 pm, Torgny Tholerus [EMAIL PROTECTED] wrote:
 [EMAIL PROTECTED] skrev:



  (7)  From (3) mathematical concepts are objectively real.  But there
  exist mathematical concepts (inifinite sets) which cannot be explained
  in terms of finite physical processes.

 How can you prove that infinite sets exists?

 --
 Torgny Tholerus

Greg Cantor showed that they were indispensible for further progress
in mathematics (See 'Cantor' or Rudy Rucker 'Infinity and the
Mind' (1982).  From (1) and (2) , (3) (reality of infinite sets)
follows.

But this is goes beyond what is necessery for the actual argument that
subjective experiences are non-material.  It was simply given as an
example of a mathematical concept for which it is absolutely clear-cut
that the concept cannot be explained in physical terms.

All that is neccessery for the argument is the point made in (4) -
that 'patterns' are not equivalent to specific physical properties and
cannot be objectivity measured (Ray Kurzweil agrees with this
conclusion - see his book).  Then  from the rest, the conclusion is
proven  subjective experiences are non-material.


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Re: Why Objective Values Exist

2007-08-28 Thread Stathis Papaioannou

On 28/08/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:

  What if someone simply claimed that they couldn't see how circulation
  was the same as cardiovascular activity: they could understand that
  the heart was a pump, the blood a fluid, the blood vessels conduits,
  but the circulatory system as a whole was something emergent and not
  at all obvious, in the same way that mind was emergent. Alternatively,
  a superintelligent being could claim that the mind was as obviously
  the result of brain activity as circulation was the result of
  cardiovascular activity.


 Alternatively a superintelligent being might be quick to castigate you
 for your stupidly and claim that I am right *sarcastic*.  We have to
 look at the facts based on the information at hand, not 'what if'.
 You haven't answered the essential point, endorsed by one of the most
 respected scientists in the world, Ray Kurzweil.

Kurzweil is a well-known populariser, but I don't know that he
deserves to be called one of the most respected scientists in the
world.

 This point is that
 there's an essential difference between specific physical properties
 (which can be objectively measured - as in the the exmaple of
 circulation), and subjective experiences, which are not reducible to
 specific physical properties (subjective experiences are a
 *mathematical pattern* , and the same pattern could be enacted on
 anything- you could have intelligent silicon, rocks, clouds or
 anything.  Further thesse patterns cannot be directly objectively
 measured.

 If I would only make one essential argument here it is:

 It's known for a fact that there exist mathematical concepts (infinite
 sets) which are indispensible to our explanations of reality but which
 can't be explained in terms of any finite physical processes.  This is
 as clear-cut proof of the existence of non-material properties as
 you're ever likely to see!  Mathematical concepts simply are not
 replaceable with physical descriptions.  And subjective experiences
 are precisely *mathemetical patterns*.

There is this sense in which the pattern is something over and above
the physical substrate of its implementation. Would you say that the
mind is to the brain as squareness is to a square-shaped table?



-- 
Stathis Papaioannou

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Re: Observer Moment = Sigma1-Sentences

2007-08-28 Thread Bruno Marchal


Le 27-août-07, à 13:27, David Nyman a écrit :


 On 16/08/07, Bruno Marchal [EMAIL PROTECTED] wrote:

 If you drop a pen, to
 compute EXACTLY what will happen in principle, you have to consider 
 all
 comp histories in UD* (the complete development of the UD) going
 through your actual state (the higher level description of it, which
 exists by comp, but which is actually not knowable by you. Of course
 this cannot be used in practice, but has to be used to derive the more
 usable laws of physics.

 I hope this will become clearer as we proceed.


I hope too. Perhaps it would help us if you could tell me which step of 
the UDA you find unclear.
cf the paper:
http://iridia.ulb.ac.be/~marchal/publications/SANE2004MARCHAL.htm

and the single summary slide PDF:
http://iridia.ulb.ac.be/~marchal/publications/SANE2004Slide.pdf

Normally the first seven steps should not be too much difficult. 
Remember that we *assume* the comp hyp. Sometimes some people does not 
understand because they (more or less unconsciously believe that I am 
arguing for comp, but that is something I am never doing since a very 
long time: I really take it as a working hypothesis with no (conscious) 
prejudice about where this can lead us.




 Empirically we can expect that the 'substitution level is more 
 related
 to a notion of isolation than of scaling. Nevertheless, we cannot
 really use this here, given that we have to extract quantum physics
 from the existence of that level.

 I don't understand this yet.


I guess you have some understanding of the first sentence, given that 
this is something happening in any version of QM without collapse. 
Sometime ago, some people argued that QM is confined to the 
microscopic, and they believed that that was the reason why a 
macroscopic quantum superposition (like Schroedinger's Cat) could not 
exist. Today we have plenty of evidences that this is not correct, and 
that it is even quite easy to generate a cat in a superposition eating 
+ drinking (say). Indeed it is enough to *isolate* sufficiently well 
the cat, and then to force him/her/it to choose between drinking and 
eating according to the result of a measurement of a quantum 
superposition state state of some local photon. By linearity the cat 
will be in the superposition state. What prevent us of seeing the cat 
in that superposition state is not that the cat is macroscopic but 
comes from the fact that we cannot isolate the cat sufficiently well 
from us, so that, very quickly we will find ourselves in a 
superposition seeing the cat in such state + seeing the cat in the 
orthe state. The quickly here is not due to some magical quick wave 
collapse, but is due to the rapidity of the decoherence process, which 
mainly describes the (linear) way superposition are contagiopus to 
their neighborhood.
Now with comp, it is the same. You cannot known, by the first person 
indeterminacy, which computations support your conscious state among 
all computations that you cannot discerned. To make this clearer, I 
will wait you telling me where exactly you have some trouble in the 
UDA. OK?




 The
 3-brain is just not a physical device for producing consciousness, it
 is a local and relative description of a state making greater the
 probability that you will be able to manifest your first person
 experience relatively to some dream, itself being an infinite set of
 histories.

 Do you mean here that: there exists a 'state that [increases] the
 probability that you will be able to manifestetc.' and that the
 3-brain 'is a local and relative description' of such a state?


A state by itself cannot change the probabilities. It is the relative 
number of possible continuations of a state, relative to the number 
of comp histories going through that state which counts, up to some 
(extraordinarily complex) equivalence relation.




 Can you explain why the set of all binary sequences *is* closed
 for diagonalization

 Because any additional members generated by diagonalisation must also
 be binary sequences?

OK.



 and why any *enumerable* set of binary sequences
 is *not* close for diagonalization?

 Because new members can always be generated by diagonalisation that go
 outside the original enumerable set (as distinct from the larger set
 of *all* sequences)?

OK.



 A bit more difficult: can you show that for any set A, the set of
 functions from A to {0,1} is bigger than A?

 Could you please elucidate functions from A to {0,1} ?


I recall that *a* function (without s) from a set A to a set B, is 
just any association to each member of A of a member of B, in such a 
way that no element of A is associate to more than one element of B.
It is usual to describe a function by either a table of associations, 
or by a graph, etc. I will represent them by the set of associations. 
For example, the function FACTORIAL from N to N is represented by the 
infinite set: { (0,1) (1,1) (2, 2) (3, 6) (4, 24) (5, 120) (6, 720), 
...}.
I will write 

Re: Why Objective Values Exist

2007-08-28 Thread Brent Meeker

[EMAIL PROTECTED] wrote:
 
 
 On Aug 28, 12:53 am, Stathis Papaioannou [EMAIL PROTECTED] wrote:
 On 27/08/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:





 I accept that there is more than one way to describe reality, and I
 accept the concept of supervenience, but where I differ with you
 (stubbornly, perhaps) is over use of the word fundamental. The base
 property seems to me more deserving of being called fundamental than
 the supervenient property. If you were to give concise instructions to
 a god who wanted to build a copy of our world you could skip all the
 information about values etc. confident in the knowledge that all this
 extra stuff would emerge as long as the correct physical information
 was conveyed; whereas the converse is not the case.
 [If the mental does not supervene on the physical this changes the
 particular example, but not the general point.]
 Refer the brief definition of property dualism referenced by the link
 Bruno gave:
 http://www.jimpryor.net/teaching/courses/mind/notes/supervenience.html
 Be careful to draw a distinction between 'substances' and
 'properties'.  I accept that the underlying *substance* is likely
 physical, but *properties* are what are super-imposed on the top of
 the underlying substance.  The physical *substance* may be the base
 level, but the physical *properties* aren't.  From the mere fact that
 aesthetic properties are *composed of* physical substances, it does
 not follow that aesthetic properties themselves are physical.  Nor
 does it follow from the fact that physical substances are *neccessery*
 for aesthetic properties,  that they are *sufficient* to fully specify
 aesthetic properties.
 Here's why:  Complete knowledge of the physical properties of your
 brain cannot in fact enable you to deduce your aesthetic preferences
 without additional *non-physical* assumptions.  That is because,as I
 agreed with Bruno (see my previous post), all the explanatory power of
 reason is *mathematical* in nature.  In short, in order for you to
 know how a complete specification of your brain state was correlated
 with your aesthetic preferences, you would have to use your own
 *subjective experiences* as a calibrator in order to make the
 correlation (ie When brain state X, I feel/experience Y).  And these
 subjective experiences are not themsleves physical, but, as I have
 explained again and again, *Mathematical* properties.
 There is this special quality of subjective experience: that which is
 left over after all the objective (third person knowable) information
 is accounted for. Nevertheless, the subjective experience can be
 perfectly reproduced by anyone who has at hand all the relevant third
 person information, even if it can't be reproduced in his own mind.
 You can build a bat which will to itself feel like a bat if you know
 every scientific detail about bats and have appropriately capable
 molecular assemblers at your disposal.
 
 Yes of course.  But your ability to do this would not enable you to
 determine what the bat was actually feeling solely from the physical
 facts alone.  

So you say.  I'm not so sure.

(If you put matter together the right way, I agree you
 will be able to create consciousness, but you won't be explain what
 type of consciousness is created solely from physical data).  So the
 fact that subjective experience is entirely dependent on physical
 substances does not provide a sufficient explanation of subjective
 experience.
 
 physical necessity unless you are a substance dualist, since the usual
 definition of supervenience says that same brain state implies same
 mind state. (It isn't a matter of logical necessity because property
 dualism is logically possible.) In this sense, the mental properties'
 dependence on the physical properties is asymmetrical, which is why I
 say the physical properties are more fundamental. You might agree with
 this analysis but simply have a different definition of fundamental.
 
 I agree that mental properties are depedent on the physical
 substance.  The physical substance might be what is fundmanetal. But
 physical *properties* are what emerge from the movements of the
 underlying substance.  

Huh?  How does gravitational mass emerge from movement?  And what does emerge 
mean? 

Futher there are other non-physical properties
 which appear as well - mathematical for example.

Is being countable a physical or a mathematical property?  As I see it, 
mathematical and logical properties are properties of our descriptions of the 
things.  They are desirable properties for any predictive description because 
they avoid self-contradiction; something that would render a prediction 
meaningless, but would be fine for a poem.

 
 
 What if someone simply claimed that they couldn't see how circulation
 was the same as cardiovascular activity: they could understand that
 the heart was a pump, the blood a fluid, the blood vessels conduits,
 but the circulatory system as a whole was something 

Re: Observer Moment = Sigma1-Sentences

2007-08-28 Thread David Nyman

On 28/08/07, Bruno Marchal [EMAIL PROTECTED] wrote:

  If you drop a pen, to
  compute EXACTLY what will happen in principle, you have to consider
  all
  comp histories in UD* (the complete development of the UD) going
  through your actual state (the higher level description of it, which
  exists by comp, but which is actually not knowable by you. Of course
  this cannot be used in practice, but has to be used to derive the more
  usable laws of physics.
 
  I hope this will become clearer as we proceed.


 I hope too. Perhaps it would help us if you could tell me which step of
 the UDA you find unclear.

I'm sorry, I should have been clearer myself.  It isn't the UDA per se
that I don't find clear, but some of your specific statements and
language above.  For example, what specifically enables us to 'derive
the usable laws of physics'?  But perhaps I'm anticipating.  I'm also
not sure exactly what you mean by 'comp histories going through your
actual state'.  I think you mean that an 'actual state' (i.e. first
person OM) that I'm experiencing can be attributed to any of these
histories - yes?

 Remember that we *assume* the comp hyp. Sometimes some people does not
 understand because they (more or less unconsciously believe that I am
 arguing for comp, but that is something I am never doing since a very
 long time: I really take it as a working hypothesis with no (conscious)
 prejudice about where this can lead us.

Yes, I accepted this a while back.

 By linearity the cat
 will be in the superposition state. What prevent us of seeing the cat
 in that superposition state is not that the cat is macroscopic but
 comes from the fact that we cannot isolate the cat sufficiently well
 from us, so that, very quickly we will find ourselves in a
 superposition seeing the cat in such state + seeing the cat in the
 orthe state. The quickly here is not due to some magical quick wave
 collapse, but is due to the rapidity of the decoherence process, which
 mainly describes the (linear) way superposition are contagiopus to
 their neighborhood.

OK, so 'the cat' quickly becomes us + the cat in two orthogonal
states?  BTW, I've never seen the cat referred to as a 'contagio-puss'
before, but it might catch on!

 Now with comp, it is the same. You cannot known, by the first person
 indeterminacy, which computations support your conscious state among
 all computations that you cannot discerned. To make this clearer, I
 will wait you telling me where exactly you have some trouble in the
 UDA. OK?

I think this is what I intended above - i.e. the UD* entails
computations that support both versions of 'me' + the cat; which one
I experience in a given OM is indeterminate.

 A state by itself cannot change the probabilities. It is the relative
 number of possible continuations of a state, relative to the number
 of comp histories going through that state which counts, up to some
 (extraordinarily complex) equivalence relation.

Are you still talking about the equivalence relation between the mind
and the brain?  I'm sorry to be so picky, but I'm really trying to be
sure I understand each sentence.

 Can you compute how many functions from A to B there are, in case A has
 n elements and B has m elements? Answer: m^n. Can you see that?

Yes, I can see it now I understand the notation better.

 By proof here, I mean an argument which convinces you,
 or better, an argument which you have the feeling that it can be used
 to convince your little sister (which I suppose not to be a
 mathematician).

In fact I have two little sisters (and one little brother), and none
are mathematicians.

David



 Le 27-août-07, à 13:27, David Nyman a écrit :

 
  On 16/08/07, Bruno Marchal [EMAIL PROTECTED] wrote:
 
  If you drop a pen, to
  compute EXACTLY what will happen in principle, you have to consider
  all
  comp histories in UD* (the complete development of the UD) going
  through your actual state (the higher level description of it, which
  exists by comp, but which is actually not knowable by you. Of course
  this cannot be used in practice, but has to be used to derive the more
  usable laws of physics.
 
  I hope this will become clearer as we proceed.


 I hope too. Perhaps it would help us if you could tell me which step of
 the UDA you find unclear.
 cf the paper:
 http://iridia.ulb.ac.be/~marchal/publications/SANE2004MARCHAL.htm

 and the single summary slide PDF:
 http://iridia.ulb.ac.be/~marchal/publications/SANE2004Slide.pdf

 Normally the first seven steps should not be too much difficult.
 Remember that we *assume* the comp hyp. Sometimes some people does not
 understand because they (more or less unconsciously believe that I am
 arguing for comp, but that is something I am never doing since a very
 long time: I really take it as a working hypothesis with no (conscious)
 prejudice about where this can lead us.



 
  Empirically we can expect that the 'substitution level is more
  related
  to a notion of isolation than of 

Re: Why Objective Values Exist

2007-08-28 Thread marc . geddes



On Aug 29, 4:20 am, Brent Meeker [EMAIL PROTECTED] wrote:
 Thanks for spelling it out.


  (1) Mathematical concepts are indispensible to our explanations of
  reality.

 So are grammatical concepts.

No they aren't.  Grammatical concepts are human creations, which is
precisely shown by the fact that they *can* be dispensed with and
replaced with scientific concepts which give a more accurate
description of reality.



 What does it mean for a concept to be real?  I don't find the argument from 
 indispenability convincing.  It's like saying because we don't know how to 
 describe something without words, the words are real things.  

Not really. According Deutsch's 'Critera For Reality' (ref: 'The
Fabric Of Reality', David Deutsch) , an application of occam's razor
says that something should be considered to 'objectively exist' if
taking the concept out of our theory made the explanation more complex
or impossible.  (ie the concept can't be dispensed with without
complications).  Grammer doesn't match the criteria.  Math does.  It's
easy to cut out English concepts say, and replace them with other
modes of descriptions.  I don't see scientists labriously trying
refactor all their mathematical explanations to refer only to material
observables.  It's not even possible.  And that's why mathematical
concepts should be taken to be objectively real.



 And patterns cannot be
  objectively measured in the way that specific physical properties can
  (See Ray Kurweil 'The Singularity Is Near' for agreement of this).

 Appeal to authority?

No, a reference to a more detailed explanation of the point (so I
don't have to laboriously type the argument here).




 I don't think anyone ever doubted that subjective experiences are processes - 
 and in that sense non-material.  But that doesn't show that they can exist 
 apart from the material.  Or that the existence and evolution of the process 
 cannot be elucidated by purely material descriptions.  I could as well 
 observe that all patterns of any kind are instantiated in material.

 Brent Meeker



 Indeed all scientific evidence indicates that subjective experiences
are  entirely dependent on the material.  Be careful to respond only
to what I actually said rather than what you thought I said.



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Re: Why Objective Values Exist

2007-08-28 Thread marc . geddes



On Aug 29, 4:03 am, Brent Meeker [EMAIL PROTECTED] wrote:

  There is this special quality of subjective experience: that which is
  left over after all the objective (third person knowable) information
  is accounted for. Nevertheless, the subjective experience can be
  perfectly reproduced by anyone who has at hand all the relevant third
  person information, even if it can't be reproduced in his own mind.
  You can build a bat which will to itself feel like a bat if you know
  every scientific detail about bats and have appropriately capable
  molecular assemblers at your disposal.

  Yes of course.  But your ability to do this would not enable you to
  determine what the bat was actually feeling solely from the physical
  facts alone.  

 So you say.  I'm not so sure.

Go back to our previous discussions.  A complete material description
of something cannot be mapped to subjective experiences without using
knowledge about subjective experience.  If you know that neurons X are
firing in way Y, for sure, the subjective experience is entirely
dependent on this process, but how do you know what subjective
experience this material process is actually causing?  You can't know
without having knowledge of the *correlation* (mapping) between the
material procceses and subjective experience.  And in using knowledge
of this correlation, you would be slipping in references to subjective
experience in your explanations. ('cheating' as it were).



  I agree that mental properties are depedent on the physical
  substance.  The physical substance might be what is fundmanetal. But
  physical *properties* are what emerge from the movements of the
  underlying substance.  

 Huh?  How does gravitational mass emerge from movement?  And what does 
 emerge mean?

mass appears to be intrinsic to a physical thing itself (ie
*substance*), not a property resulting from physical processes.
'Emerge' simply means that properties are not intrinsic but are a
result of physical interactions and processes.



 Futher there are other non-physical properties
  which appear as well - mathematical for example.

 Is being countable a physical or a mathematical property?  As I see it, 
 mathematical and logical properties are properties of our descriptions of 
 the things.  They are desirable properties for any predictive description 
 because they avoid self-contradiction; something that would render a 
 prediction meaningless, but would be fine for a poem.


being countable is of course of a mathematical property.  And your
point here is at the heart of our disagreement.  Because of the
argument from indispensability, I *don't* think that mathematical
properties are properties of our *descriptions* of the things.  I
think they are properties *of the thing itself*.  Some kinds of
description (ie mathematical concepts) can't be dispensed with in our
explanations of reality.  Therefore the simplest explanations is that
these concepts exist objectively.



 This point is that
  there's an essential difference between specific physical properties
  (which can be objectively measured - as in the the exmaple of
  circulation), and subjective experiences, which are not reducible to
  specific physical properties

 You keep asserting that, but exactly the same thing was said about life.

Yes, but I can explain exactly what the difference is in the case of
mind/brain.  Mental properties are mathematical patterns.  Physical
properties are not.


 (subjective experiences are a
  *mathematical pattern* , and the same pattern could be enacted on
  anything- you could have intelligent silicon, rocks, clouds or
  anything.  Further thesse patterns cannot be directly objectively
  measured.

 Why can't such patterns be measured?  If I create an intelligent computer, 
 why can't I follow it's operation?

You *can* measure the physical correlates of these patterns.  But the
point that I (and David) had been making that the physical correlates
of these patterns are not the mathematical pattern (ie the mental
process) itself.





  If I would only make one essential argument here it is:

  It's known for a fact that there exist mathematical concepts (infinite
  sets) which are indispensible to our explanations of reality but which
  can't be explained in terms of any finite physical processes.  

 I don't think so.  Infinities in physical theories are just convenient 
 approximations for something very big.

 Brent Meeker

I would carefully read Rudy Rucker's 'book of Infinity.   It is a
through rebutting of the idea that 'inifinites in physical theories
are just conveient approximations'.  The whole of cantor's set theory
simply doesn't work without assuming that the infinities are things in
themselves.  There is more than one kind of infinity.

It all comes down to perspective.  The attempt to reduce everything to
material concepts would severely limit science.  In fact most of
computer science couldn't be done.  computer scientists don't talk in

Re: Why Objective Values Exist

2007-08-28 Thread Brent Meeker

[EMAIL PROTECTED] wrote:
 
 
 On Aug 29, 4:20 am, Brent Meeker [EMAIL PROTECTED] wrote:
 Thanks for spelling it out.
 
 (1) Mathematical concepts are indispensible to our explanations of
 reality.
 So are grammatical concepts.
 
 No they aren't.  Grammatical concepts are human creations, which is
 precisely shown by the fact that they *can* be dispensed with and
 replaced with scientific concepts which give a more accurate
 description of reality.

So are mathematics human creations (c.f. William S. Cooper, The Evolution of 
Logic).  There is no sharp distinction between what is expressed in words and 
what is expressed in mathematical symbols.  Darwins theory of evolution is no 
more accurately expressed in mathematical notation.

 
 
 What does it mean for a concept to be real?  I don't find the argument from 
 indispenability convincing.  It's like saying because we don't know how to 
 describe something without words, the words are real things.  
 
 Not really. According Deutsch's 'Critera For Reality' (ref: 'The
 Fabric Of Reality', David Deutsch) , an application of occam's razor
 says that something should be considered to 'objectively exist' if
 taking the concept out of our theory made the explanation more complex
 or impossible.  (ie the concept can't be dispensed with without
 complications).  

So Deutsch has an overly generous criterion for exist.  Does he consider 
epicycles real because they were indispensable to Ptolemy's theory of the 
cosmos.  I'd go with Dr. Johnson - it exists if I kick it and it kicks back.   

Grammer doesn't match the criteria.  Math does.  It's
 easy to cut out English concepts say, and replace them with other
 modes of descriptions.  I don't see scientists labriously trying
 refactor all their mathematical explanations to refer only to material
 observables.  

Actually a theory that dispenses with unobservables is usually considered 
preferable, by application of Occam's razor.  For example in Newtonian 
mechanics force was an important concept, but later it was dropped.  So what is 
it's status now?  It's still a mathematical concept - but according to Deutsch 
it's not part of reality.

It's not even possible.  And that's why mathematical
 concepts should be taken to be objectively real.

Your argument, even if I agreed with it, would only justify counting as 
objectively real those mathematical concepts that appear in a true theory of 
reality - and unfortunately we never know which one that is.

Brent Meeker

 
 
 And patterns cannot be
 objectively measured in the way that specific physical properties can
 (See Ray Kurweil 'The Singularity Is Near' for agreement of this).
 Appeal to authority?
 
 No, a reference to a more detailed explanation of the point (so I
 don't have to laboriously type the argument here).
 
 
 
 I don't think anyone ever doubted that subjective experiences are processes 
 - and in that sense non-material.  But that doesn't show that they can exist 
 apart from the material.  Or that the existence and evolution of the process 
 cannot be elucidated by purely material descriptions.  I could as well 
 observe that all patterns of any kind are instantiated in material.

 Brent Meeker


 
  Indeed all scientific evidence indicates that subjective experiences
 are  entirely dependent on the material.  Be careful to respond only
 to what I actually said rather than what you thought I said.
 
 
 
  
 
 


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