Re: The Nature of Time

2011-04-06 Thread Saibal Mitra
Hi Stephen, My point is that time as a pointer that points to what exists and what not (anymore or yet), cannot exist. You can indeed map the set of all such pointers to the real line. I agree that relativity is inconsistent with such an idea of time. Saibal > Hi Saibal > > Are you defining

Dreams and measure

2009-02-11 Thread Saibal Mitra
Welcome back Jack Mallah! I have a different argument against QTI. I had a nice dream last night, but unfortunately it suddenly ended. Now, this is empirical evidence against QTI because, according to the QTI, the life expectancy of the version of me simulated in that dream should have been b

Changing the past by forgetting

2009-03-10 Thread Saibal Mitra
http://arxiv.org/abs/0902.3825 I've written up a small article about the idea that you could end up in a different sector of the multiverse by selective memory erasure. I had written about that possibility a long time ago on this list, but now I've made the argument more rigorous. --~--~---

Re: Changing the past by forgetting

2009-03-15 Thread Saibal Mitra
probability of finding yourself on an Earth were the dinosaurs never lived. - Original Message - From: "Bruno Marchal" To: Sent: Wednesday, March 11, 2009 06:54 PM Subject: Re: Changing the past by forgetting > > Nice! I did refer often to the Saibal Mitra backtracki

Re: Changing the past by forgetting

2009-03-15 Thread Saibal Mitra
rement and you don't know the outcome, the outcome is not fixed (proovided, of course, there is indeed more than one branch). - Original Message - From: "Jack Mallah" To: Sent: Thursday, March 12, 2009 03:47 AM Subject: Re: Changing the past by forgetting --- On T

Re: Changing the past by forgetting

2009-04-21 Thread Saibal Mitra
of 10^23 particles: the result of a new measurement is not pre-determined in either case. - Original Message - From: "Brent Meeker" To: Sent: Sunday, March 15, 2009 08:06 PM Subject: Re: Changing the past by forgetting > > Saibal Mitra wrote: > > If we consider

Extra explanation

2009-04-21 Thread Saibal Mitra
I just send a posting to the FOR list about my article. I did not have the time to reply to everyone on this list previously. Reading the old discussion again, I think that it was suggested that the exact quantum states matter, but they don't. It was only used to illustrate the thought experiment

Re: Changing the past by forgetting

2009-04-21 Thread Saibal Mitra
07:27 PM Subject: Re: Changing the past by forgetting > > Accepting QM without collapse, I am not sure you can dump your memory > in the environment in any truly irreversible way. > > Bruno > > > On 21 Apr 2009, at 15:22, Saibal Mitra wrote: > > > > > Yes, I ag

Re: Zuse Symposium: Is the universe a computer? Berlin Nov 6-7

2006-11-03 Thread Saibal Mitra
uncompoutable numbers, non countable sets etc. don't exist in first order logic, see here: http://www.earlham.edu/~peters/courses/logsys/low-skol.htm "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>: > > Ah the famous Juergen Schmidhuber! :) > > Is the universe a computer. Well, if you define 'univer

Re: testing

2006-12-20 Thread Saibal Mitra
The listserver was experiencing a lot of "computer pain" recently and that prevented it from function normally :) John Mikes <[EMAIL PROTECTED]>: This is the 3rd time I send a 'test' to myself. I receive list-post on this gmail address, but my mail does not show up, neither here nor on the Y

Re: Believing in Divine Destiny

2007-02-28 Thread Saibal Mitra
The only connection I can think of is as follows. For any given religious text there should exist a universe which "best fits" those text. Saibal - Original Message - From: "Wei Dai" <[EMAIL PROTECTED]> To: Sent: Tuesday, February 27, 2007 11:55 PM Subject: Re: Believing in Divine De

Re: How would a computer know if it were conscious?

2007-06-03 Thread Saibal Mitra
If it feels bafflement and confusion, then surely it is conscious :) An AI that takes information from books might experience similar qualia we can experience. The AI will be programmed to do certain tasks and it must thus have a notion of what it is doing is ok., not ok, or completely wrong. If

Re: how to define ASSA (was: The ASSA leads to a unique utilitarism)

2007-10-05 Thread Saibal Mitra
1) looks better because there is no unambiguous definition of "next". However, I don't understand the "shared by everyone" part. Different persons are different programs who cannot exactly represent the "observer moment" of me. As I see it, an observer moment is a snapshot of the universe take

Re: how to define ASSA

2007-10-05 Thread Saibal Mitra
universe described by the Standard Model. citeren Brent Meeker <[EMAIL PROTECTED]>: > > Saibal Mitra wrote: >> 1) looks better because there is no unambiguous definition of "next". >> However, I don't understand the "shared by everyone" part. Diffe

Re: Request to form 'Social Contract' with SAI

2007-10-15 Thread Saibal Mitra
The best thing you could do is to freeze your brain. I think that will preserve the connections between the neurons, although the cells will be destroyed. This will make it easier for a future civilization to regenerate you digitally - Original Message - From: <[EMAIL PROTECTED]> T

Re: Quantum Immortality = no second law

2008-04-14 Thread Saibal Mitra
Citeren nichomachus <[EMAIL PROTECTED]>: > > In the description of the quantum immortality gedanken experiment, a > physicist rigs an automatic rifle to a geiger counter to fire into him > upon the detection of an atomic decay event from a bit of radioactive > material. If the many worlds hypothe

Re: Quantum Immortality = no second law

2008-04-14 Thread Saibal Mitra
Citeren nichomachus <[EMAIL PROTECTED]>: > > In the description of the quantum immortality gedanken experiment, a > physicist rigs an automatic rifle to a geiger counter to fire into him > upon the detection of an atomic decay event from a bit of radioactive > material. If the many worlds hypothe

QTI ---> Expanding brains

2008-04-19 Thread Saibal Mitra
large brain the size of the galaxy would still be "me". :) - Original Message - From: "Russell Standish" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, April 16, 2008 03:24 AM Subject: Re: Quantum Immortality = no second law > > O

OMs are events

2005-07-31 Thread Saibal Mitra
I agree with the notion of OMs as events in some suitably chosen space. Observers are defined by the programs that generate them. If we identify universes with programs then observers are just embedded universes. An observer moment is just a qualia experienced by the observer, which is just an even

Re: subjective reality

2005-08-12 Thread Saibal Mitra
Godfrey Kurtz wrote > More specifically: I believe QM puts a big kabosh into any non-quantum > mechanistic view of the physical world. If you > don't get that, than maybe you don't get a lot of other things, Bruno. > Sorry if this sounds contemptuous. It is meant > to be. There aren't man

Re: subjective reality

2005-08-12 Thread Saibal Mitra
gt; That much I will grant you... > > (Now I have met 't Hooft! 't Hooft was a neighbor of mine and I tell > you: Bruno is no 't Hooft! ;- ) > > Best regards > > Godfrey Kurtz > (New Brunswick, NJ) > > -Original Message- > From: Saibal Mitra &l

Re: subjective reality

2005-08-19 Thread Saibal Mitra
ge > theories in his youth I suspect "god's dice" are loaded against him > this time. > > However he is always fascinating to read and hear. I saw him at Harvard > this winter for the Colemanfest and he had the most fabulous > animations... > > Godfrey

How did it all begin?

2005-08-30 Thread Saibal Mitra
http://arxiv.org/abs/astro-ph/0508429 Tegmark's essay was not well received (perhaps Godfrey didn't like it? :-) ) How did it all begin? Authors: Max Tegmark Comments: 6 pages, 6 figs, essay for 2005 Young Scholars Competition in honor of Charles Townes; received Dishonorable Mention How did i

Re: How did it all begin?

2005-09-01 Thread Saibal Mitra
Hi Norman, I have no idea why it received a dishonorable mention. It could be because some physicists/cosmologists don't like anthropic reasoning. - Original Message - From: "Norman Samish" <[EMAIL PROTECTED]> To: "Saibal Mitra" <[EMAIL PROTECTED

Re: How did it all begin?

2005-09-01 Thread Saibal Mitra
I agree, but Tegmark does mention the idea that mathematical existence = physical existence, which is basically the same thing (the universe considered as a purely mathematical entity is ''eternal''). The point is that the Universe appears to have a beginning from the point of view of observers...

Re: subjective reality

2005-09-03 Thread Saibal Mitra
Hi Godfrey, It is not clear to me why one would impose constraints such as locality etc. here. Ignoring the exact details of what Bruno (and others) are doing, it all all boils down to this: Does there exists an algorithm that when run on some computer would generate an observer who would subject

Re: subjective reality

2005-09-05 Thread Saibal Mitra
t; (arXiv:astro-ph/0302131 v1 7 Feb 2003) > > Norman > ~~ > > - Original Message - > From: "Saibal Mitra" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Cc: > Sent: Saturday,

Re: What Computationalism is and what it is *not*

2005-09-05 Thread Saibal Mitra
Hi Norman, A TM in our universe can simulate you living in a virtual universe. If your universe is described by the same laws of physics as ours, then most physicists believe that the TM would have to work in a nonlocal way from your perspective. Is this a problem? I don't think so, because the T

Re: What Computationalism is and what it is *not*

2005-09-08 Thread Saibal Mitra
h the rest of the (real) universe this doesn't qualify as a ''bona fide'' simulation. Saibal - Original Message - From: "Norman Samish" <[EMAIL PROTECTED]> To: "Saibal Mitra" <[EMAIL PROTECTED]> Sent: Tuesday, September 06, 2005

Re: What Computationalism is and what it is *not*

2005-09-09 Thread Saibal Mitra
Hi Norman, > At last, I may be getting a glimmering of understanding of your point of > view (which doesn't mean that I agree with you). Thanks for your patience. > > You seem to be saying that it is irrelevant if a Turing Machine, even one > that operates at the speed of light, takes a billion

Re: Neutrino shield idea

2005-10-07 Thread Saibal Mitra
This means that beta decay proves your model wrong. - Original Message - From: "John Ross" <[EMAIL PROTECTED]> To: "'Stephen Paul King'" <[EMAIL PROTECTED]>; Sent: Saturday, October 08, 2005 12:35 AM Subject: RE: Neutrino shield idea > Thanks for the paper relating to detection of "low

Re: Neutrino shield idea

2005-10-10 Thread Saibal Mitra
There are a lot of experiments that have detected neutrinos and verified their properties (which are completely different from photons). - Original Message - From: "John Ross" <[EMAIL PROTECTED]> To: "'Saibal Mitra'" <[EMAIL PROTECTED]>; Sent:

Re: Neutrino shield idea

2005-10-10 Thread Saibal Mitra
ubject: RE: Neutrino shield idea > > > > > > As I understand it a photon is a luxon as is a gluon and a neutrino > > is a tardyon. > > > > Hal Ruhl > > > > > > At 04:49 PM 10/10/2005, you wrote: > > >I think the beta decay model is wr

Re: Neutrino shield idea

2005-10-10 Thread Saibal Mitra
Faster than light effects lead to violations of causality. There are very stringent experimental constraints against such effects. - Original Message - From: "John Ross" <[EMAIL PROTECTED]> To: "'Russell Standish'" <[EMAIL PROTECTED]> Cc: "'Stephen Paul King'" <[EMAIL PROTECTED]>; Sent:

Tegmark's prediction of neutrino masses

2005-10-10 Thread Saibal Mitra
Since we are discussing neutrinos, I thought it is fun to mention antropic constraints on neutrino masses derived by Tegmark, see here: http://arxiv.org/abs/astro-ph/0304536 Anthropic predictions for neutrino masses Authors: Max Tegmark (MIT), Alexander Vilenkin (Tufts), Levon Pogosian (Tufts) C

Re: Quantum theory of measurement

2005-10-12 Thread Saibal Mitra
Hal gives the correct explanation of what's going on. In general, all you have to do to analyze the problem is to consider all contributions to a particular state and add up the amplitudes. The absolute value squared of the amplitude gives the probability, which may or may not contain an interfere

Re: Quantum theory of measurement

2005-10-13 Thread Saibal Mitra
Well, as you can see here: http://cabtep5.cnea.gov.ar/particulas/daniel/curri/curreng.html He isn't very experienced yet. I know of some experienced professors of have made worse mistakes :) So, what goes wrong? Well, you don't get an interference pattern at one end even if you don't detect the

Re: ROSS MODEL OF THE UNIVERSE - The Simplest Yet Theory of Everything

2005-10-13 Thread Saibal Mitra
You clearly forgot to read this: http://insti.physics.sunysb.edu/~siegel/quack.html John Ross: ''General Relativity and String Theory [0005] Einstein's special theory did not deal with acceleration and gravity but his General Theory of Relativity did. His general theory, attempting to explain g

Re: Quantum Immortality and Information Flow

2005-11-26 Thread Saibal Mitra
The answer must be a) because (and here I disagree with Jesse), all that exists is an ensemble of isolated observer moments. The future, the past, alternative histories, etc. they all exist in a symmetrical way. It don't see how some states can be more ''real'' than other states. Of course, the un

Re: Quantum Immortality and Information Flow

2005-11-27 Thread Saibal Mitra
- Original Message - From: "Jonathan Colvin" <[EMAIL PROTECTED]> To: Sent: Sunday, November 27, 2005 05:49 AM Subject: RE: Quantum Immortality and Information Flow > Saibal wrote: > > The answer must be a) because (and here I disagree with > > Jesse), all that exists is an ensemble of

Re: Quantum Immortality and Information Flow

2005-12-02 Thread Saibal Mitra
- Original Message - From: "Brent Meeker" <[EMAIL PROTECTED]> To: Cc: Sent: Sunday, November 27, 2005 07:41 PM Subject: Re: Quantum Immortality and Information Flow > Saibal Mitra wrote: > > - Original Message - > > From: "Jonatha

Re: Quantum Immortality and Information Flow

2005-12-02 Thread Saibal Mitra
- Original Message - From: "Jonathan Colvin" <[EMAIL PROTECTED]> To: Sent: Sunday, November 27, 2005 10:02 PM Subject: RE: Quantum Immortality and Information Flow > > Saibal wrote: > > > > The answer must be a) because (and here I disagree with > > > > Jesse), all that exists is an ens

Re: Quantum Immortality and Information Flow

2005-12-02 Thread Saibal Mitra
- Original Message - From: "Bruno Marchal" <[EMAIL PROTECTED]> To: "Saibal Mitra" <[EMAIL PROTECTED]> Cc: "Jesse Mazer" <[EMAIL PROTECTED]>; "Stathis Papaioannou" <[EMAIL PROTECTED]>; Sent: Monday, November 28, 2005 04:47 P

Re: Quantum Immortality and Information Flow

2005-12-02 Thread Saibal Mitra
d the person not been killed. Then his measure would have doubled. But because he is killed in one of the two copies of Earth, his measure stays the same. In a quantum suicide experiment his measure would be reduced by a factor two. - Original Message - From: "Saibal Mitra" <[EM

Re: Quantum Immortality and Information Flow

2005-12-03 Thread Saibal Mitra
s in quantum branch splitting? It seems to me that in both > cases the relative measure of everything in the world stays the same, even > though in absolute terms there is double of everything. > > Stathis Papaioannou > > > Saibal Mitra writes: > > >Correction, I seem

Re: Quantum Immortality and Information Flow

2005-12-03 Thread Saibal Mitra
- Original Message - From: "Brent Meeker" <[EMAIL PROTECTED]> To: "Saibal Mitra" <[EMAIL PROTECTED]> Sent: Saturday, December 03, 2005 03:06 AM Subject: Re: Quantum Immortality and Information Flow > Saibal Mitra wrote: > > - Original Messag

Does God play dice?

2005-12-03 Thread Saibal Mitra
http://physicsweb.org/articles/world/18/12/2/1

Re: Quantum Immortality and Information Flow

2005-12-04 Thread Saibal Mitra
gt; Galaxy, or Universe). It could be argued that your measure relative to the > rest of the Universe (or that part of it which is duplicated) has now > decreased. Is your expectation of survival in this case more like the > original teleportation example, or more like the MWI branching example?

A New Kind of Science Conference

2005-12-14 Thread Saibal Mitra
http://www.wolframscience.com/conference/2006/outline.html

Re: Quantum Immortality and Information Flow

2005-12-14 Thread Saibal Mitra
- Original Message - From: "Johnathan Corgan" <[EMAIL PROTECTED]> To: "Stathis Papaioannou" <[EMAIL PROTECTED]> Cc: Sent: Wednesday, December 14, 2005 10:39 AM Subject: Re: Quantum Immortality and Information Flow > Stathis Papaioannou wrote: > > > In the multiverse, only other people

Re: Quantum Immortality and Information Flow

2005-12-16 Thread Saibal Mitra
tally. - Original Message - From: "Bruno Marchal" <[EMAIL PROTECTED]> To: "Saibal Mitra" <[EMAIL PROTECTED]> Cc: Sent: Thursday, December 15, 2005 01:25 PM Subject: Re: Quantum Immortality and Information Flow > > Le 15-déc.-05, à 03:04, Saibal Mitra a

Re: Multiverse concepts in string theory

2006-02-14 Thread Saibal Mitra
Stephen,   Theorists are always a bit ahead and they have already found ways to save SUSY from negative results from the LHC.   Saibal     - Original Message - From: Stephen Paul King To: everything-list@eskimo.com Sent: Tuesday, February 14, 2006 1:04 PM Subject:

Re: Multiverse concepts in string theory

2006-02-15 Thread Saibal Mitra
scientific theory must be highly falsifiable, otherwise we are just going back to the days of Scholastic debates...   http://clublet.com/why?AngelsOnTheHeadsOfPins   Onward!   Stephen   - Original Message - From: Saibal Mitra To: Stephen Paul King ;

Re: why can't we erase information?

2006-04-09 Thread Saibal Mitra
How would an observer know he is living in a universe in which information is lost? Information loss means that time evolution can map two different initial states to the same final state. The observer in the final state thus cannot know that information really has been lost. - Original Mes

Re: why can't we erase information?

2006-04-11 Thread Saibal Mitra
TECTED]> To: Sent: Monday, April 10, 2006 03:22 AM Subject: Re: why can't we erase information? > > Saibal Mitra wrote: > > > > > > >How would an observer know he is living in a universe in which information > >is lost? Information loss means that time ev

Re: why can't we erase information?

2006-04-11 Thread Saibal Mitra
- Original Message - From: "Wei Dai" <[EMAIL PROTECTED]> To: Sent: Tuesday, April 11, 2006 01:46 AM Subject: Re: why can't we erase information? > > Saibal Mitra wrote: > > How would an observer know he is living in a universe in which information &g

Re: why can't we erase information?

2006-05-06 Thread Saibal Mitra
This thread is still alive! It seems that information can't be erased in this thread either :) I think that information can't be erased because of the way time is (or should be) defined. If you take the observer moment approach to the multiverse, then you have to define a notion of time. That def

Re: Smullyan Shmullyan, give me a real example

2006-05-11 Thread Saibal Mitra
Einstein seems to have believed in ''immortal observer moments''. In a BBC documentary about time it was mentioned that Einstein consoled a friend whose son had died in a tragic accident by saying that relativity suggests that the past and the future are as real as the present. Saibal From:

Re: Smullyan Shmullyan, give me a real example

2006-05-12 Thread Saibal Mitra
From: "Patrick Leahy" <[EMAIL PROTECTED]> To: Sent: Friday, May 12, 2006 12:56 PM Subject: Re: Smullyan Shmullyan, give me a real example > > > On Fri, 12 May 2006, Saibal Mitra wrote: > > > > > Einstein seems to have believed in ''immorta

Re: Reasons and Persons

2006-05-29 Thread Saibal Mitra
There must exist a ''high level'' program that specifies a person in terms of qualia. These qualia are ultimately defined by the way neurons are connected, but you could also think of persons in terms of the high-level algorithm, instead of the ''machine language'' level algorithm specified by the

Re: Reasons and Persons

2006-06-01 Thread Saibal Mitra
its neurons > only? > Isn't a person (as anything) part of his ambience - in a wider view: of > the > totality, with interction back and forth with all the changes that go on? > Are you really interested only in the dance of those silly neurons? > > John M > - Orig

Re: Teleportation thought experiment and UD+ASSA

2006-06-20 Thread Saibal Mitra
I don't understand why you consider the measures of the programs that do the simulations. The ''real'' measure should be derived from the algorithmic complexity of the laws of physics that describe how the computers/brains work. If you know for certain that a computation will be performed in this

Re: Teleportation thought experiment and UD+ASSA

2006-06-27 Thread Saibal Mitra
. Saibal - Original Message - From: ""Hal Finney"" <[EMAIL PROTECTED]> To: Sent: Wednesday, June 21, 2006 08:49 AM Subject: Re: Teleportation thought experiment and UD+ASSA > > "Saibal Mitra" <[EMAIL PROTECTED]> writes: > > I

Re: A calculus of personal identity

2006-06-30 Thread Saibal Mitra
- Original Message - From: "Stathis Papaioannou" <[EMAIL PROTECTED]> To: Sent: Friday, June 30, 2006 09:23 AM Subject: Re: A calculus of personal identity Brent Meeker writes: > > I think it is one of the most profound things about consciousness > > that observer moments don't *need*

Re: Interested in thoughts on this excerpt from Martin Rees

2006-07-26 Thread Saibal Mitra
- Original Message - From: ""Hal Finney"" <[EMAIL PROTECTED]> To: Sent: Wednesday, July 26, 2006 08:28 AM Subject: Re: Interested in thoughts on this excerpt from Martin Rees > The real problem is not just that it is a philosophical speculation, > it is that it does not lead to any t

Re: Russell's book

2006-09-12 Thread Saibal Mitra
I think I can prove that QTI as intepreted in this list is false, I'll post the proof in a new thread. The only version of QTI that makes sense to me is this: All possible states exist "out there" in the multiverse. The observer moments are timeless objects so, in a certain sense, QTI is true. Bu

Proof that QTI is false

2006-09-12 Thread Saibal Mitra
QTI in the way defined in this list contradicts quantum mechanics. The observable part of the universe can only be in a finite number of quantum states. So, it can only harbor a finite number of observer moments or experiences a person can have, see here for details: http://arxiv.org/abs/gr-qc/0

Re: Proof that QTI is false

2006-09-14 Thread Saibal Mitra
- Original Message - From: "Brent Meeker" <[EMAIL PROTECTED]> To: Sent: Wednesday, September 13, 2006 5:47 AM Subject: Re: Proof that QTI is false > > Saibal Mitra wrote: > > QTI in the way defined in this list contradicts quantum mechanics. The > &g

Re: Proof that QTI is false

2006-09-14 Thread Saibal Mitra
be considered. > > Cheers > - Original Message - From: "Russell Standish" <[EMAIL PROTECTED]> To: Sent: Wednesday, September 13, 2006 4:31 AM Subject: Re: Proof that QTI is false > On Tue, Sep 12, 2006 at 11:58:14PM +0200, Saibal Mitra wrote: > > > > QTI in

Why (quantum) suicide doesn't work

2002-01-01 Thread Saibal Mitra
I am now completely convinced that attempts to witness low probability events or to travel to low measure sectors of the plenitude are doomed to failure.   The (hidden) assumption behind quantum suicide is that of continuity of consciousness: If there is only one unlikely outcome that will p

Sharpening Occam's Razor

2002-01-10 Thread Saibal Mitra
Computer Science, abstractcs.LG/0201005 From: Paul Vitanyi <[EMAIL PROTECTED]> Date: Tue, 8 Jan 2002 16:44:10 GMT (11kb) Sharpening Occam's Razor Authors: Ming Li (Univ. Waterloo), John Tromp (CWI), Paul Vitanyi (CWI and University of Amsterdam)Comments: LaTeX 10 pagesReport-no: CWI Manu

http://xxx.lanl.gov/abs/hep-th/0201092

2002-01-16 Thread Saibal Mitra
High Energy Physics - Theory, abstracthep-th/0201092 From: Stephen Blaha <[EMAIL PROTECTED]> Date: Mon, 14 Jan 2002 21:57:12 GMT (634kb) A Quantum Computer Foundation for the Standard Model and SuperString Theories Authors: Stephen BlahaComments: 78 pages, PDF We show the Standard Model an

Mirror Symmetry

2002-02-03 Thread Saibal Mitra
It has been conventional wisdom that the fundamental laws of physics are not invariant under parity. Now, the computational complexity of a model that lacks mirror symmetry is much larger than a similar mirror symmetric model. It would thus be very strange if Nature is indeed not invariant

Re: Mirror Symmetry

2002-02-05 Thread Saibal Mitra
n the exact parity model. Saibal - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, February 03, 2002 10:45 PM Subject: Re: Mirror Symmetry > > > Saibal Mitra: > > ... a so-called mirror world could exist. Nature would th

Re: Bell, Aspect & Copenhagen vs. MWI

2002-02-06 Thread Saibal Mitra
Hello Bruno, I did follow a course on Hopf algebras, but that's already some time ago. I will read the articles you mentioned, should be interesting! B.t.w. Kreimer has also written some papers with David Broadhurst. He has done some quite amazing work, see his homepage: http://physics.open.a

Tragedy in a ``nearby´´ universe

2002-03-01 Thread Saibal Mitra
Recently discovered documents detail the steps Nasa and the Nixon administration would have taken had the Apollo XI astronauts Neil Armstrong and Edwin "Buzz" Aldrin been unable to return from the moon. The following is the full text of the unused speech, ominously entitled "In the event of

Mirror Matter

2002-03-13 Thread Saibal Mitra
A new preprint on the mirror matter hypothesis by R. Foot and T.L. Loon has appeared. My observation that cratering rates on the Moon point to the presence of mirror asteroids in our solar system is also included. See: http://xxx.lanl.gov/abs/astro-ph/0203152 Abstract: There are a number of v

Shadowlands

2002-03-13 Thread Saibal Mitra
Robert Foot has written a book on mirror matter. It can be ordered or downloaded from: http://www.upublish.com/books/foot.htm Saibal

Re: Optimal Prediction

2002-03-28 Thread Saibal Mitra
Didn't Hilbert say that physics is far too complicated for physicists? Saibal - Oorspronkelijk bericht - Van: "Juergen Schmidhuber" <[EMAIL PROTECTED]> Aan: <[EMAIL PROTECTED]> CC: <[EMAIL PROTECTED]> Verzonden: donderdag 28 maart 2002 18:09 Onderwerp: Re: Optimal Prediction > > Bill J

Re: Optimal Prediction

2002-03-28 Thread Saibal Mitra
I don't understand this point. Bill Jefferys wrote: > Ockham's razor is a consequence of probability theory, if you look at > things from a Bayesian POV, as I do. Saibal Mitra

Mirror Matter

2002-04-03 Thread Saibal Mitra
I have made a homepage for Mirror Matter, It can be found at http://people.zeelandnet.nl/smitra It is still under construction, comments welcome. Saibal Mitra

Re: Holodeck guy tries to prove 'Bruno theory'

2002-04-13 Thread Saibal Mitra
Nick Bostrom's uses the self-sampling assumption without simultaneously invoking the self-indicating assumption. That's wrong and leads straightforward to nonsense. E.g. the Doomsday argument is a closely related fallacy. This is explained by Ken Olum: General Relativity and Quantum Cosmology,

Re: Holodeck guy tries to prove 'Bruno theory'

2002-04-16 Thread Saibal Mitra
- Original Message - From: Brian Scurfield <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, April 16, 2002 6:47 AM Subject: RE: Holodeck guy tries to prove 'Bruno theory' > In this paper Olum defends the self-indicating assumption which says that > given the fact you exist you

Re: test

2002-05-06 Thread Saibal Mitra
Maybe it isn't working but only seems to be working due to a white rabbit. - Origineel Bericht - Van: Bruno Marchal <[EMAIL PROTECTED]> Datum: Maandag, Mei 6, 2002 11:30 am Onderwerp: Re: test > At 13:19 -0700 5/05/2002, Wei Dai wrote: > >This is a test to make sure the Everything Mailin

Re: JOINING posts

2002-05-31 Thread Saibal Mitra
physics, J. Cardy, Cambridge University Press [2] Exactly Solved Models in Statistical Mechanics, R.J. Baxter, Academic Press, New York, 1982 [3] Renormalization Group Studies of Vertex Models, Saibal Mitra, http://arxiv.org/abs/physics/9910031 [4] Determinism and Dissipation in Quantum Gravity, Erice

Re: relevant probability distribution

2002-06-06 Thread Saibal Mitra
Hello Bruno: - Oorspronkelijk bericht - Van: "Bruno Marchal" <[EMAIL PROTECTED]> Aan: "Saibal Mitra" <[EMAIL PROTECTED]>; "everything" <[EMAIL PROTECTED]> Verzonden: dinsdag 4 juni 2002 19:50 Onderwerp: Re: JOINING posts > Hi Saibal, &g

Re: relevant probability distribution

2002-06-12 Thread Saibal Mitra
Hello Joe, > > I have difficulty with the concept of many distinct programs, each > representing an individual conscious entity. My understanding of modern physics > is that the concept of an isolated individual is essentially obsolete, in that > nothing can be defined without relation to eve

Re: relevant probability distribution

2002-06-14 Thread Saibal Mitra
Russell wrote: > > I take "consciousness" to be that property essential for the operation > of the Anthropic Principle. The universe is the way it is because we > are here observing it as conscious beings. > > The first problem this raises is why does the anthropic principle > work? - one can co

Re: relevant probability distribution

2002-06-18 Thread Saibal Mitra
Russell wrote: > Saibal Mitra wrote: > > > > > > Russell wrote: > > > > > > I take "consciousness" to be that property essential for the operation > > > of the Anthropic Principle. The universe is the way it is because we > > &g

Copenhagen interpretation

2002-07-12 Thread Saibal Mitra
This all assumes that photons, electrons, etc. are real. We don't know that. If you were Einstein, and you were faced with Bell's result, you could have concluded that the nonexistence of local hidden variables implies that elementary paricles don't exist. They are mere mathematical tools to compu

Re: Copenhagen interpretation

2002-07-14 Thread Saibal Mitra
MWI is a fully deterministic theory, but it is not the only deterministic theory consistent with QM. I believe that 't Hooft's theory is more natural from the point of view that universes are programs. It is hard for me to understand how you get interference between ``nearby´´ universes or progra

Re: Copenhagen interpretation

2002-07-14 Thread Saibal Mitra
Gordon wrote: > Saibal Mitra wrote: > > > > This all assumes that photons, electrons, etc. are real. We don't know that. > > If you were Einstein, and you were faced with Bell's result, you could have > > concluded that the nonexistence of local hidden

Re: Is Reality as function of Reference Frame?

2002-07-16 Thread Saibal Mitra
Hello Stephen, Here are the references to 't Hooft's papers. Ref. 3 is written for non-specialists, and should be easy to follow. Greetings, Saibal [1] Quantum Gravity as a Dissipative Deterministic System http://arxiv.org/abs/gr-qc/9903084 [2] Determinism in Free Bosons http://arxiv.org/ab

Re: Newcomb's paradox

2002-07-24 Thread Saibal Mitra
The very act of predicting what you will choose is equivalent to generating you virtually and observing what box you will choose. So, when you stand in front of the two boxes, you don't know if you are in the real world or in the virtual world. The causal argument is thus invalid. The only way to

More magic: Exp(Pi*Sqrt(n))

2002-08-09 Thread Saibal Mitra
Exp(Pi*Sqrt(n)) PageThis table lists values of Exp(Pi*Sqrt(n)), for some selected values of n up to 1000. Some of these values are very close to integers. A prize will be awarded to anyone who can either convincingly argue that this is coincidence, or who can explain why this is so in terms

Re: More magic: Exp(Pi*Sqrt(n))

2002-08-09 Thread Saibal Mitra
Hal Finney wrote: ``Unfortunately it does not seem likely that an explanation suitable for a college senior is available, > unless he is willing to educate himself for several months on higher mathematics.´´ I suspect that Roy Williams Clickery included this condition so that he always has an e

Ordinary atom-mirror atom bound states

2002-08-11 Thread Saibal Mitra
http://arxiv.org/abs/hep-ph/0204256 Ordinary atom-mirror atom bound states: A new window on the mirror world Authors: R. Foot, S. MitraComments: about 8 pages, couple of changes Mirror symmetry is a plausible candidate for a fundamental symmetry of particle interactions which can be exactl

Re: A little bomb ?

2002-08-12 Thread Saibal Mitra
Bruno wrote: > More seriously I do no more know what exactly is new in that papers > on the primes. > Here a message I got from friends. I currently agree, but perhaps I still miss > something? I think that a polynomial time algorithm means that the algorithm's running time is a polynomial in L

Re: Doomsday-like argument in cosmology

2002-08-15 Thread Saibal Mitra
I think that the difference is that invoking the SIA does not affect the conclusion of the paper. Saibal Wei Dai wrote: > On Thu, Aug 15, 2002 at 12:45:17AM -0400, [EMAIL PROTECTED] wrote: > > Dyson, L., Kleban, M. & Susskind, L. Disturbing implications of a > > cosmological constant. Preprint

Re: Doomsday-like argument in cosmology

2002-08-15 Thread Saibal Mitra
: "Wei Dai" <[EMAIL PROTECTED]> Aan: "Saibal Mitra" <[EMAIL PROTECTED]> CC: <[EMAIL PROTECTED]> Verzonden: donderdag 15 augustus 2002 23:46 Onderwerp: Re: Doomsday-like argument in cosmology > On Thu, Aug 15, 2002 at 11:28:28PM +0200, Saibal Mitra wrote: >

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