Re: (Quantum) suicide not necessary?

2001-03-03 Thread Brent Meeker

I checked out your website, but it still seems to me there is a big gap
between saying all universes with physics that are consistent with the
WAP are experienced and saying that all thoughts (observer moments)
exists.  In the later case there is no explanation for the seeming
existence of coherent sequences of thoughts such as 'me', except to say
that if all thoughts exist then this sequence must exist too.  The
trouble with this is that an explanation that can explain anything
explains nothing.

Brent Meeker


 Before I was blind but now I see. 
 
 I was the one who came up with the expression, 'Quantum Theory of
 Immortality', and I now see that it's false - and all this stuff in
 this thread is based on the same mistake. See www.higgo.com/qti , a
 site dedicated to the idea.
 
 There is no 'you'. 'You' don't 'travel'. There are just different
 observer moments, some including 'I am Micky and I'm, sick'.
 
 Even thinking in your passe Newtonian terms, how can a universe in
 which 'you have a disease' be the same as one in which 'you do not
 have the disease', just because you don't know it?
 
 I see why Jacques gets so irritated by this type of thinking, but it's
 nice to see him back on the list now  then.




Re: (Quantum) suicide not necessary?

2001-03-03 Thread Saibal Mitra

Bruno wrote:

 Saibal Mitra wrote:

 Instead of the previously discussed suicide experiments to test various
 versions of many-worlds theories, one might consider a different
approach.
 
 By deleting certain sectors of one's memory one should be able to travel
 to different branches of the multiverse. Suppose you are diagnosed with
 a rare disease. You don't have complaints yet, but you will die
 within a year. If you could delete the information that you have this
 particular disease (and also the information that information has
 been deleted), branches in which you don't have the disease
 merge with the branches in which you do have the disease. So with
 very high probability you have travelled to a different branch.

 Be careful because in the process you take the risk of losing a friend.
 More aptly (3 1 switch) a friend risks losing you.

 Do you agree that at *some* level we do that all the time?
 Does death works as personal local and relative memory eraser ?
 Your suggestion is risky, if not egoist, but, is there another way
 when the rare disease is fatal?

Indeed. Death will erase my memory anyway, so why not do it in a controlled
way
to maximize the probability of some desired outcome.

 Thought experiment with speculative memory capture raised quickly
 the interesting question: how many (first) person exists, really.
 I don't know the answer. One ?

Why not an infinite number?


 In another post Saibal wrote:

 I think the source of the problem is equation 1 of Jürgens paper. This
 equation supposedly gives the probability that I am in a particular
 universe, but it ignores that multiple copies of me might exist in one
 universe. Let's consider a simple example. The prior probability of
 universe i (i0) is denoted as P(i), and i copies of me exist in universe
 i. In this case, Jürgen computes the propability that if you pick a
 universe at random, sampled with the prior P, you pick universe i. This
 probability is, of course, P(i). Therefore Jürgen never has to identify
 how many times I exist in a particular universe, and can ignore what
 consciousness actually is.
 
 Surerly an open univere where an infinite number of copies of me exist is
 infinitely more likely than a closed universe where I don't have any
 copies, assuming that the priors are of the same order?


 Would you agree that a quantum multiverse could play the role of a
 particular open universe where an infinite number of
 copies of me exists?

I agree that this could be the case.
 If you agree, would that mean we have anthropic reasons to believe
 in a quantum-like multiverse?

That's an interesting point!

Saibal




Re: QTI

2001-03-03 Thread James Higgo



The point is, 'you' have no 'age'. An observer 
moment exists, it does not have any temporal attributes _per se_ - although it 
may contain externally-meaningless concepts such as 'it is 12:45pm'. The 
statement, 'one OM outlives another' is a category mistake. 

  - Original Message - 
  From: 
  Saibal Mitra 
  
  To: James Higgo ; Michael Rosefield ; [EMAIL PROTECTED] 
  Sent: Saturday, March 03, 2001 4:34 
  PM
  Subject: QTI
  
  I also don't think that 'Quantum Theory of 
  Immortality' is correct in its conventional form. I do believe, however, that 
  a different versionis implied by James' Theory of Observer 
  Moments. Since there exists a set S of observer moments, one element of which 
  represents my state now, I will ''always'' find myself in some subset of S. This doesn't mean that I could 
  outlive everyone. The observer moment: I am 10^100 years old is simply 
  inconsistent with I am Saibal.
  
  I posted earlier about an article by Caticha that explains how 
  fundamental laws of physics (including notions such as time and space) can be 
  derived from nothing more than an arbitrary probability distribution defined 
  over some arbitrary set. 
  
  See http://xxx.lanl.gov/abs/math-ph/0008018
  
  
  Saibal
  - Original Message - 
  
From: 
James Higgo 
To: Michael Rosefield ; Saibal Mitra ; [EMAIL PROTECTED] 
Sent: Saturday, March 03, 2001 1:53 
PM
Subject: Re: (Quantum) suicide not 
necessary?

Before I was blind but 
now I see.

I was the one who came 
up with the expression, 'Quantum Theory of Immortality', and I now see that 
it's false - and all this stuff in this thread is based on the same mistake. 
See www.higgo.com/qti , a site 
dedicated to the idea.

There is no 'you'. 'You' don't 'travel'. There 
are just different observer moments, some including 'I am Micky and I'm, 
sick'.

Even thinking in your passe Newtonian 
terms,how can a universe in which 'you have a disease' be the same as 
one in which 'you do not have the disease', just because you don't know 
it?

I see why Jacques gets 
so irritated by this type of thinking, but it's nice to see him back on the 
list now  then. 

  - Original Message - 
  From: 
  Michael Rosefield 
  To: Saibal Mitra ; [EMAIL PROTECTED] 
  Sent: Tuesday, February 27, 2001 3:30 
  PM
  Subject: Re: (Quantum) suicide not 
  necessary?
  
  
  *Phew!*; this afternoon I finally got round 
  to reading the 190-odd messages I have received from this 
  list
  
  
  From: Saibal Mitra 
  
Instead of the previously discussed suicide 
experiments to test variousversions of many-worlds theories, one 
might consider a different approach.

By deleting certain sectors of one's memory 
one should be able to travelto different branches of the multiverse. 
Suppose you are diagnosed with a rare disease. You don't have 
complaints yet, but you will diewithin a year. If you could delete 
the information that you have thisparticular disease (and also the 
information that information hasbeen deleted), branches in which you 
don't have the diseasemerge with the branches in which you do have 
the disease. So withvery high probability you have travelled to a 
different branch.
  I don't know whether to be relieved or 
  annoyed that I'm not the only person to think of this 
  ;D.
  http://pub45.ezboard.com/fwastelandofwondersfrm1.showMessage?topicID=353.topicindex=5
  I'm guessing this is quite a common 
  idea? Rats, I thought I was so great
  
  
  I_did_ thinkof the following today, 
  though:
  
  If you take this sort of thing one step further, 
  an afterlife is inevitable; there will always be systems - however 
  improbable - where the mind lives on. For instance, you could just be the 
  victim of an hallucination, your mind could be downloaded, you could be 
  miraculously cured, and other _much_ more bizzare ones. Since you won't be 
  around to notice the worlds where you did die, they don't count, and you 
  are effectively immortal. Or at least you will perceive yourself to live 
  on, which is the same thing.
  
  When I thought of it, it seemed startlingly original and clever. 
  Looking at the posts I have from this list, I'm beginning to suspect it's 
  neither Anyhow, while this sort of wild thinking 
  iswonderfully pure andcathartic, itnever seems to lead 
  anywhere with testable or useful implications. So far, 
  anyway
  
  What's the opinion here on which are more fundamental - 
  minds or universes? I'd say they're both definable and hence exist de 
  facto, and that each implies the 

Re: on formally describable universes and measures

2001-03-03 Thread Saibal Mitra

Jürgen wrote:
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, February 22, 2001 5:32 PM
Subject: Re: on formally describable universes and measures




 Saibal Mitra wrote:

  I think the source of the problem is equation 1 of Juergen's paper. This
  equation supposedly gives the probability that I am in a particular
  universe, but it ignores that multiple copies of me might exist in
  one universe. Let's consider a simple example. The prior probability
  of universe i (i0) is denoted as P(i), and i copies of me exist in
  universe i. In this case, Juergen computes the propability that if you
  pick a universe at random, sampled with the prior P, you pick universe
  i. This probability is, of course, P(i). Therefore Juergen never has
  to identify how many times I exist in a particular universe, and can
  ignore what consciousness actually is.  Surely an open universe where an
  infinite number of copies of me exist is infinitely more likely than a
  closed universe where I don't have any copies, assuming that the priors
  are of the same order?

 To respond, let me repeat the context of eq. 1 [In which universe am I?]
 Let h(y) represent a property of any possibly infinite bitstring y, say,
 h(y)=1 if y represents the history of a universe inhabited by yourself
 and h(y)=0 otherwise.  According to the weak anthropic principle, the
 conditional probability of finding yourself in a universe compatible with
 your existence equals 1.  But there may be many y's satisfying h(y)=1.
 What is the probability that y=x, where x is a particular universe
 satisfying h(x)=1? According to Bayes,
 P(x=y | h(y)=1) =
 (P(h(y)=1 | x=y) P(x = y)) / (sum_{z:h(z)=1}  P(z))
 propto P(x),
 where P(A | B) denotes the probability of A, given knowledge of B, and
 the denominator is just a normalizing constant.  So the probability of
 finding yourself in universe x is essentially determined by P(x), the
 prior probability of x.

 Universes without a single copy of yourself are ruled out by the weak
 anthropic principle.  But the others indeed suggest the question: what can
 we say about the distribution on the copies within a given universe U
(maybe
 including those living in virtual realities running on various computers
in U)?
 I believe this is the issue you raise - please correct me if I am wrong!
 (Did you really mean to write i copies in universe i?)


I did mean to write i copies in universe i, maybe it would have been better
to write
n(i) copies in universe i. Anyway, according to equation 1 the probability
of universe x
given that n(x) 0 is proportional to P(x), which is also intuitively
logical. My point is
that from the perspective of the observer, of which there are n(x) copies in
universe x, things
look different. Intuitively, it seems that the measure of the observer
should be n(x)* P(x).
E.g.  suppose there exist x1 and x2 such that P(x1) = P(x2) and n(x1) 
n(x2)  0.
It seems to me that the observer is more likely to find himself in universe
x1 compared to
universe  x2.

 Intuitively, some copies might be more likely than others. But what
 exactly does that mean? If the copies were identical in the sense no
 outsider could distinguish them, then the concept of multiple copies
 wouldn't make sense - there simply would not be any multiple copies. So
 there must be detectable differences between copies, such as those
 embodied by their different environments.

 So my answer would be: as soon as you have a method for identifying and
 separating various observer copies within a universe U, each
distinguishable
 copy_i is different in the sense that it lives in a different universe
 U_i, just like you and me can be viewed as living in different universes
 because your inputs from the environment are not identical to mine.

 In general, the pair (U_i, copy_i) conveys more information than U by
 itself (information is needed to separate them).  The appropriate domain
 of universes x (to use the paper's notation) would be the set of all
possible
 pairs of the form (separate universe, separate observer).

 Equation 1 above is perfectly applicable to this domain.


Okay, but since I don't know which of the copies I am, the probability
that I am one of the copies inside universe i is given as:
Sum_{i = 1}^{n(U)} P(U_i)

Is this  proportional to P(U)  or is it
proportional to n(U) P(U) ?

Saibal





Re: (Quantum) suicide not necessary?

2001-03-03 Thread Michael Rosefield




 
From: James Higgo 


 Before I was blind but 
now I see.

 I was the one who came 
up with the expression, 'Quantum Theory of Immortality', and I now see that it's 
false -  and all this stuff in this thread is based on the same mistake. See 
www.higgo.com/qti , a site dedicated to 
the  idea.



Hey, I'm still counting it as original! I 
_did_ come up with it independently And I still can't see anything wrong 
with it.

Thanks for the web-site, though.



 There is no 'you'. 'You' don't 'travel'. There 
are just different observer moments, some including 'I am Micky and  I'm, 
sick'.



So? This is trivial. We still percieve ourselves as continuous 
beings, and the qualia is what I'm talking about here. The point is that one 
will _always_ have observer moments to go to. The illusion of self is 
maintained. I'm pretty sure at least one of us is misunderstanding the 
other.



 Even thinking in your passe Newtonian 
terms,how can a universe in which 'you have a disease' be the 
same  as one in which 'you do not have the disease', just 
because you don't know it?



Oh Please don't do that. You don't know how I think, and I 
really don't see why you jumped to this conclusion. 

The wayI see it now, the observer moment is all we have. 
I think I may have picked up the followingmetaphor here, but I'll use it 
nonetheless: did Jack and Jill go up the hill in August? Does it 
matter?

The rhyme leaves it undefined, so it's a meaningless question; 
they did and they didn't. We belong to all universes that generate this observer 
moment, and only a sort of statistical Ockham's Razor says which ones we'll 
perceive ourselves to be in next. What's the problem here?



 I see why Jacques gets 
so irritated by this type of thinking, but it's nice to see him back on the list 
now  then. 


What type of thinking? Please, I don't want to get into a 
catfight here. I'm on this list, presumably, for the same reasonyou are: 
to try and see the whole picture.


Re: on formally describable universes and measures

2001-03-03 Thread James Higgo

Guys, this is really good stuff. This is answering my question of a couple
of weeks ago. I will quote it in a paper with your permission.
James
- Original Message -
From: Marchal [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, March 02, 2001 1:32 PM
Subject: Re: on formally describable universes and measures



 Jacques Mallah wrote:

 Sorry, that doesn't help.  What do you mean by a real actual one?
 What other kind is there, a fake one?  Either it exists, or not.

 OK. In that sense we agree that the DU exist. I am glad to see that you
 are
 a classical platonist. An intuitionist would'nt accept the idea that
 something exist ... or not.

  Of course, in your macintosh example, the UD was itself implemented by
 some other mathematical structure - your local decor.  Does that
matter?

 A big part of my reasoning is that it *doesn't matter* indeed. For most
 people this is a difficulty.

 Actually, I would say that any mathematical structure that has real
 existance (in the strong sense) should be called physical.I do not know
 of any better definition for physical existance.

 What is that strong sense of existence?  And why do you want to
 classify as physical any mathematical structures.
 If you do that (a little like Tegmark) you are obliged to explain how
 we feel a difference between physicalness and mathematicalness (why is
 there math courses and physics courses) etc.
 Tegmark, like Everett, *do* distinguish the first and third person,
 which helps to make sense of that idea. The physical would be
 some mathematical structures sufficiently rich for having inside
 point of views (through SAS point of views for exemple).
 The physical point of view (pov) would correspond to these internal pov.

 Nowhere did I say that _only_ a physical system could implement a
 computation.  But you did bring to my attention the fact that I should
make
 the definition of implementation more clear on this point.  In other
 places, I do point out that one computation can implement another.  (In
 turn, the second one might implement another, etc.; the first one will
 therefore implement all of those.)
 So, your objection is irrelevant.  You do believe a UD implements other
 computations.

 Sure. Yes. UD implements all computations, and even all implementations
 of all computations.

 Actuality is a first person concept.
 
I have no clue as to what you mean.

 In Newtonian Physics one could imagine some third person time (objective
 time), but since relativity I guess most believe that time is either
 a parameter or do refer to some relative measurement done by an observer.

 Actuality, modern, here, now, there, elsewhere, are words
 with meaning dependent of the locutor. Indexicals, as the philosophers
 call them.
 Most are true or false only from a first person point of view.

 3rd person view is everything you can communicate in a scientific manner
 without taking into account the subjective view of a person.
 
 If the person has some set of beliefs, they can be described as part
of
 the true description of the situation.  (Which you is what I thought you
 call the 3rd person view.)

 Concerning *believes* the case is arguable. For *knowledge* I don't
 think you will ever succeed in describing them in some provable
 (objectively, 3-person) way.
 This can be proved with very reasonable definition.
 See ref by Benacerraf, or Kaplan and Montague in my thesis.

 (It is linked with that reconstruction of Lucas which makes difficult
 for Schmidhuberians to locate an observer in *a* computational history,
 but
 I think that point is obvious once you get the computational
 indeterminacy
 from the duplication thought experience).

 Science is (ideally) a pure 3-person discourse and will ever be. But with
 definition of 1-person you can make science (i.e. 3-person discourses)
 *about* the possible 1-person discourses.
 I give two definitions of 1-person discourses. The first one appears
 in the self duplication thought experiment, and is just personal
 memory (what is written  in *your* personal diary). The second one,
 which I use in the formal part of
 my work is the one given by Thaetetus to Socrate. Mathematically it
 gives intuitionnistic logic (topos, constructive math, etc.).
 The use of topos(*) by quantum cosmologist (cf Lee Smolin) is the logical
 move made by those who want the other universal stories away.
 It is cosmo-solipsism.

 Someone who would have only first person insight is a solipsist.
 Someone who would have only third person insight is a zombie.

 If I duplicate myself succesfully in Washington and Moscow, both
 Bruno1 and Bruno2 can communicates the success of the experience from
 a third person point of view, but none can explain you that he feels
 to be the Washingtonian (resp Moscovian) one.

 The difference between the first person and the third person is
 basically the same as the difference between having an headache and
 having a friend having an headhache.

 From 

Re: (Quantum) suicide not necessary?

2001-03-03 Thread James Higgo



Oh, as to 'this is trivial - we still perceive 
ourselves as continuous beings' - I guess as far as you're concerned,the 
Earth does not move.

  - Original Message - 
  From: 
  Michael Rosefield 
  To: James Higgo ; Saibal Mitra ; [EMAIL PROTECTED] 
  Sent: Saturday, March 03, 2001 3:34 
  PM
  Subject: Re: (Quantum) suicide not 
  necessary?
  
  
   
  From: James Higgo 
  
  
   Before I was blind 
  but now I see.
  
   I was the one who 
  came up with the expression, 'Quantum Theory of Immortality', and I now see 
  that it's false -  and all this stuff in this thread is based on the same 
  mistake. See www.higgo.com/qti , a site 
  dedicated to the  idea.
  
  
  
  Hey, I'm still counting it as original! 
  I _did_ come up with it independently And I still can't see anything wrong 
  with it.
  
  Thanks for the web-site, though.
  
  
  
   There is no 'you'. 'You' don't 'travel'. 
  There are just different observer moments, some including 'I am Micky and  
  I'm, sick'.
  
  
  
  So? This is trivial. We still percieve ourselves as 
  continuous beings, and the qualia is what I'm talking about here. The point is 
  that one will _always_ have observer moments to go to. The illusion of self is 
  maintained. I'm pretty sure at least one of us is misunderstanding the 
  other.
  
  
  
   Even thinking in your passe Newtonian 
  terms,how can a universe in which 'you have a disease' be the 
  same  as one in which 'you do not have the disease', just 
  because you don't know it?
  
  
  
  Oh Please don't do that. You don't know how I think, and 
  I really don't see why you jumped to this conclusion. 
  
  The wayI see it now, the observer moment is all we 
  have. I think I may have picked up the followingmetaphor here, but I'll 
  use it nonetheless: did Jack and Jill go up the hill in August? Does it 
  matter?
  
  The rhyme leaves it undefined, so it's a meaningless 
  question; they did and they didn't. We belong to all universes that generate 
  this observer moment, and only a sort of statistical Ockham's Razor says which 
  ones we'll perceive ourselves to be in next. What's the problem 
  here?
  
  
  
   I see why Jacques 
  gets so irritated by this type of thinking, but it's nice to see him back on 
  the list now  then. 
  
  
  What type of thinking? Please, I don't want to get into a 
  catfight here. I'm on this list, presumably, for the same reasonyou are: 
  to try and see the whole picture. 


Re: (Quantum) suicide not necessary?

2001-03-03 Thread James Higgo



You miss the point. You do not go anywhere. You are 
this observer moment. No observer moment 'becomes' another OM, or it would be a 
different OM to begin with. I guess this is extremely hard for people to 
understand, because it denies that people exist.

  - Original Message - 
  From: 
  Michael Rosefield 
  To: James Higgo ; Saibal Mitra ; [EMAIL PROTECTED] 
  Sent: Saturday, March 03, 2001 3:34 
  PM
  Subject: Re: (Quantum) suicide not 
  necessary?
  
  
   
  From: James Higgo 
  
  
   Before I was blind 
  but now I see.
  
   I was the one who 
  came up with the expression, 'Quantum Theory of Immortality', and I now see 
  that it's false -  and all this stuff in this thread is based on the same 
  mistake. See www.higgo.com/qti , a site 
  dedicated to the  idea.
  
  
  
  Hey, I'm still counting it as original! 
  I _did_ come up with it independently And I still can't see anything wrong 
  with it.
  
  Thanks for the web-site, though.
  
  
  
   There is no 'you'. 'You' don't 'travel'. 
  There are just different observer moments, some including 'I am Micky and  
  I'm, sick'.
  
  
  
  So? This is trivial. We still percieve ourselves as 
  continuous beings, and the qualia is what I'm talking about here. The point is 
  that one will _always_ have observer moments to go to. The illusion of self is 
  maintained. I'm pretty sure at least one of us is misunderstanding the 
  other.
  
  
  
   Even thinking in your passe Newtonian 
  terms,how can a universe in which 'you have a disease' be the 
  same  as one in which 'you do not have the disease', just 
  because you don't know it?
  
  
  
  Oh Please don't do that. You don't know how I think, and 
  I really don't see why you jumped to this conclusion. 
  
  The wayI see it now, the observer moment is all we 
  have. I think I may have picked up the followingmetaphor here, but I'll 
  use it nonetheless: did Jack and Jill go up the hill in August? Does it 
  matter?
  
  The rhyme leaves it undefined, so it's a meaningless 
  question; they did and they didn't. We belong to all universes that generate 
  this observer moment, and only a sort of statistical Ockham's Razor says which 
  ones we'll perceive ourselves to be in next. What's the problem 
  here?
  
  
  
   I see why Jacques 
  gets so irritated by this type of thinking, but it's nice to see him back on 
  the list now  then. 
  
  
  What type of thinking? Please, I don't want to get into a 
  catfight here. I'm on this list, presumably, for the same reasonyou are: 
  to try and see the whole picture. 


Re: (Quantum) suicide not necessary?

2001-03-03 Thread James Higgo



Before I was blind but now 
I see.

I was the one who came up 
with the expression, 'Quantum Theory of Immortality', and I now see that it's 
false - and all this stuff in this thread is based on the same mistake. See www.higgo.com/qti , a site dedicated to the 
idea.

There is no 'you'. 'You' don't 'travel'. There are 
just different observer moments, some including 'I am Micky and I'm, 
sick'.

Even thinking in your passe Newtonian 
terms,how can a universe in which 'you have a disease' be the same as one 
in which 'you do not have the disease', just because you don't know 
it?

I see why Jacques gets so 
irritated by this type of thinking, but it's nice to see him back on the list 
now  then. 

  - Original Message - 
  From: 
  Michael Rosefield 
  To: Saibal Mitra ; [EMAIL PROTECTED] 
  Sent: Tuesday, February 27, 2001 3:30 
  PM
  Subject: Re: (Quantum) suicide not 
  necessary?
  
  
  *Phew!*; this afternoon I finally got round to 
  reading the 190-odd messages I have received from this 
  list
  
  
  From: Saibal Mitra 
  
Instead of the previously discussed suicide 
experiments to test variousversions of many-worlds theories, one might 
consider a different approach.

By deleting certain sectors of one's memory one 
should be able to travelto different branches of the multiverse. Suppose 
you are diagnosed with a rare disease. You don't have complaints yet, 
but you will diewithin a year. If you could delete the information that 
you have thisparticular disease (and also the information that 
information hasbeen deleted), branches in which you don't have the 
diseasemerge with the branches in which you do have the disease. So 
withvery high probability you have travelled to a different 
branch.
  I don't know whether to be relieved or annoyed 
  that I'm not the only person to think of this ;D.
  http://pub45.ezboard.com/fwastelandofwondersfrm1.showMessage?topicID=353.topicindex=5
  I'm guessing this is quite a common idea? 
  Rats, I thought I was so great
  
  
  I_did_ thinkof the following today, 
  though:
  
  If you take this sort of thing one step further, an 
  afterlife is inevitable; there will always be systems - however improbable - 
  where the mind lives on. For instance, you could just be the victim of an 
  hallucination, your mind could be downloaded, you could be miraculously cured, 
  and other _much_ more bizzare ones. Since you won't be around to notice the 
  worlds where you did die, they don't count, and you are effectively immortal. 
  Or at least you will perceive yourself to live on, which is the same 
  thing.
  
  When I thought of it, it seemed startlingly original and clever. Looking 
  at the posts I have from this list, I'm beginning to suspect it's neither 
  Anyhow, while this sort of wild thinking iswonderfully pure 
  andcathartic, itnever seems to lead anywhere with testable or 
  useful implications. So far, anyway
  
  What's the opinion here on which are more fundamental - 
  minds or universes? I'd say they're both definable and hence exist de facto, 
  and that each implies the other.
  
  Well,I'm new here. Is there anything I should know 
  about this list? Apart from the fact that everyone's so terribly educated 
  Feel free to go a bit OT ;). 
  
  Michael Rosefield, Sheffield, England
  "I'm a Solipsist, and I must say I'm surprised there aren't more of us." 
  -- letter to Bertrand 
Russell


QTI

2001-03-03 Thread Saibal Mitra



I also don't think that 'Quantum Theory of 
Immortality' is correct in its conventional form. I do believe, however, that a 
different versionis implied by James' Theory of Observer Moments. 
Since there exists a set S of observer moments, one element of which represents 
my state now, I will ''always'' find myself in some subset of S. This doesn't mean that I could outlive everyone. The 
observer moment: I am 10^100 years old is simply inconsistent with I am 
Saibal.

I posted earlier about an article by Caticha that explains how fundamental 
laws of physics (including notions such as time and space) can be derived from 
nothing more than an arbitrary probability distribution defined over some 
arbitrary set. 

See http://xxx.lanl.gov/abs/math-ph/0008018


Saibal
- Original Message - 

  From: 
  James Higgo 
  To: Michael Rosefield ; Saibal Mitra ; [EMAIL PROTECTED] 
  Sent: Saturday, March 03, 2001 1:53 
  PM
  Subject: Re: (Quantum) suicide not 
  necessary?
  
  Before I was blind but 
  now I see.
  
  I was the one who came up 
  with the expression, 'Quantum Theory of Immortality', and I now see that it's 
  false - and all this stuff in this thread is based on the same mistake. See www.higgo.com/qti , a site dedicated to 
  the idea.
  
  There is no 'you'. 'You' don't 'travel'. There 
  are just different observer moments, some including 'I am Micky and I'm, 
  sick'.
  
  Even thinking in your passe Newtonian 
  terms,how can a universe in which 'you have a disease' be the same as 
  one in which 'you do not have the disease', just because you don't know 
  it?
  
  I see why Jacques gets so 
  irritated by this type of thinking, but it's nice to see him back on the list 
  now  then. 
  
- Original Message - 
From: 
Michael Rosefield 
To: Saibal Mitra ; [EMAIL PROTECTED] 
Sent: Tuesday, February 27, 2001 3:30 
PM
Subject: Re: (Quantum) suicide not 
necessary?


*Phew!*; this afternoon I finally got round 
to reading the 190-odd messages I have received from this 
list


From: Saibal Mitra 

  Instead of the previously discussed suicide 
  experiments to test variousversions of many-worlds theories, one might 
  consider a different approach.
  
  By deleting certain sectors of one's memory 
  one should be able to travelto different branches of the multiverse. 
  Suppose you are diagnosed with a rare disease. You don't have 
  complaints yet, but you will diewithin a year. If you could delete the 
  information that you have thisparticular disease (and also the 
  information that information hasbeen deleted), branches in which you 
  don't have the diseasemerge with the branches in which you do have the 
  disease. So withvery high probability you have travelled to a 
  different branch.
I don't know whether to be relieved or 
annoyed that I'm not the only person to think of this 
;D.
http://pub45.ezboard.com/fwastelandofwondersfrm1.showMessage?topicID=353.topicindex=5
I'm guessing this is quite a common 
idea? Rats, I thought I was so great


I_did_ thinkof the following today, 
though:

If you take this sort of thing one step further, an 
afterlife is inevitable; there will always be systems - however improbable - 
where the mind lives on. For instance, you could just be the victim of an 
hallucination, your mind could be downloaded, you could be miraculously 
cured, and other _much_ more bizzare ones. Since you won't be around to 
notice the worlds where you did die, they don't count, and you are 
effectively immortal. Or at least you will perceive yourself to live on, 
which is the same thing.

When I thought of it, it seemed startlingly original and clever. 
Looking at the posts I have from this list, I'm beginning to suspect it's 
neither Anyhow, while this sort of wild thinking 
iswonderfully pure andcathartic, itnever seems to lead 
anywhere with testable or useful implications. So far, 
anyway

What's the opinion here on which are more fundamental - 
minds or universes? I'd say they're both definable and hence exist de facto, 
and that each implies the other.

Well,I'm new here. Is there anything I should know 
about this list? Apart from the fact that everyone's so terribly 
educated Feel free to go a bit OT ;). 

Michael Rosefield, Sheffield, England
"I'm a Solipsist, and I must say I'm surprised there aren't more of 
us." -- letter to Bertrand Russell