Re: Definition of universe

2010-03-03 Thread Bruno Marchal
David, It is the motivation of Everett to make coherent the wave equation and the idea that mind is not something substantial acting on matter (like Copenhagians are obliged to admit in a way or another). To derive the phenomenology of the collapse, he used only local interactions and

Re: Definition of universe

2010-03-02 Thread Bruno Marchal
On 01 Mar 2010, at 11:58, David Nyman wrote: On 1 March 2010 08:26, Bruno Marchal marc...@ulb.ac.be wrote: Everett uses comp, in the usual intuitive way, because he characterizes the observer by its crisp memory, and he derives the phenomenology of the wave packet reduction, by showing it

Re: Definition of universe

2010-03-02 Thread David Nyman
On 2 March 2010 16:13, Bruno Marchal marc...@ulb.ac.be wrote: I think that you are forgetting the 8th step of the UDA. That is the Movie Graph Argument (MGA). It shows that, assuming comp, the physical supervenience has to be abandonned, and should be substituted by the comp supervenience

Re: Definition of universe

2010-03-01 Thread Bruno Marchal
On 28 Feb 2010, at 18:43, David Nyman wrote: On 28 February 2010 15:45, Bruno Marchal marc...@ulb.ac.be wrote: UDA shows that the wave equation (not just the collapse) has to emerge from a relative state measure on all computational histories. The schroedinger equation has to be itself the

Re: Definition of universe

2010-03-01 Thread David Nyman
On 1 March 2010 08:26, Bruno Marchal marc...@ulb.ac.be wrote: Everett uses comp, in the usual intuitive way, because he characterizes the observer by its crisp memory, and he derives the phenomenology of the wave packet reduction, by showing it to appears through physical interaction in the

Re: Definition of universe

2010-02-28 Thread Bruno Marchal
On 27 Feb 2010, at 18:38, David Nyman wrote: On 8 Feb, 14:12, Bruno Marchal marc...@ulb.ac.be wrote: The main problem with Tegmark is that he assumes an implicit identity thesis mind/observer-state which does not work once we assume the computationalist hypothesis, (and thus cannot work with

Re: Definition of universe

2010-02-28 Thread David Nyman
On 28 February 2010 15:45, Bruno Marchal marc...@ulb.ac.be wrote: UDA shows that the wave equation (not just the collapse) has to emerge from a relative state measure on all computational histories. The schroedinger equation has to be itself the result of the abandon of the identity thesis.

Re: Definition of universe

2010-02-27 Thread David Nyman
On 8 Feb, 14:12, Bruno Marchal marc...@ulb.ac.be wrote: The main problem with Tegmark is that he assumes an implicit identity thesis mind/observer-state which does not work once we assume the computationalist hypothesis, (and thus cannot work with Everett Quantum Mechanics either). The

Re: Definition of universe

2010-02-08 Thread Bruno Marchal
Actually we have already discussed this a lot, and the work I explain here (uda, auda) can be considered as an answer to Tegmark (or Schmidhuber), except that it has been published many years before, and relies on philosophy of mind/computer science or machine's theology. The main problem

Re: Definition of universe

2010-02-07 Thread Brian Tenneson
Assuming a 4-level hierarchy of universe as posited by Tegmark here... http://arxiv.org/abs/0905.1283v1 Then the universe would be an aggregate of all mathematical structures. On Tue, Dec 29, 2009 at 6:07 AM, Mindey min...@gmail.com wrote: Hello, I was just wondering, we are talking so much

Re: Definition of universe

2010-02-05 Thread ronaldheld
Bruno: is there a free version of Theoretical computer science and the natural sciences? Ronald On Feb 4, 2:45 pm, Bruno Marchal marc...@ulb.ac.be wrote: On 04 Feb 2010, at 15:28, Jason Resch wrote: On Wed, Feb 3, 2010 at 1:47 PM, Bruno Marchal

Re: Definition of universe

2010-02-05 Thread Bruno Marchal
On 05 Feb 2010, at 13:13, ronaldheld wrote: Bruno: is there a free version of Theoretical computer science and the natural sciences? I have still many preprints. People interested can send me their addresses out of line. Oops! I just see the axiom 3) below is not correct. Please

Re: Definition of universe

2010-02-04 Thread Jason Resch
On Wed, Feb 3, 2010 at 1:47 PM, Bruno Marchal marc...@ulb.ac.be wrote: On 03 Feb 2010, at 15:49, Jason Resch wrote: On Wed, Feb 3, 2010 at 3:14 AM, Bruno Marchal marc...@ulb.ac.be wrote: On 03 Feb 2010, at 03:00, Jason Resch wrote: Is your point that with addition, multiplication, and

Re: Definition of universe

2010-02-04 Thread Bruno Marchal
On 04 Feb 2010, at 15:28, Jason Resch wrote: On Wed, Feb 3, 2010 at 1:47 PM, Bruno Marchal marc...@ulb.ac.be wrote: On 03 Feb 2010, at 15:49, Jason Resch wrote: On Wed, Feb 3, 2010 at 3:14 AM, Bruno Marchal marc...@ulb.ac.be wrote: On 03 Feb 2010, at 03:00, Jason Resch wrote:

Re: Definition of universe

2010-02-03 Thread Bruno Marchal
On 03 Feb 2010, at 03:00, Jason Resch wrote: On Thu, Dec 31, 2009 at 12:38 PM, Bruno Marchal marc...@ulb.ac.be wrote: UDA = Universal Dovetailer Argument. It is an argument which is supposed to show that if we take seriously the idea that we are digitally emulable, then we have to

Re: Definition of universe

2010-02-03 Thread Bruno Marchal
On 03 Feb 2010, at 15:49, Jason Resch wrote: On Wed, Feb 3, 2010 at 3:14 AM, Bruno Marchal marc...@ulb.ac.be wrote: On 03 Feb 2010, at 03:00, Jason Resch wrote: Is your point that with addition, multiplication, and an infinite number of successive symbols, any computable function can

Re: Definition of universe

2010-02-02 Thread Jason Resch
On Thu, Dec 31, 2009 at 12:38 PM, Bruno Marchal marc...@ulb.ac.be wrote: UDA = Universal Dovetailer Argument. It is an argument which is supposed to show that if we take seriously the idea that we are digitally emulable, then we have to take seriously the idea that physics is a branch of

Re: Definition of universe

2010-01-01 Thread 明迪
Bruno, thanks for the answer. What do you mean by universe? Do you mean, like many, the physical universe (or multiverse), or do you mean the ultimate basic reality (the third person everything)? By universe I mean what we call a universe when we talk about universes on this list,

Re: Definition of universe

2009-12-31 Thread Bruno Marchal
On 30 Dec 2009, at 17:39, John Mikes wrote: Bruno, I still wait for the reasoning of the 'primitive' in your: ...if this physical universe can be captured by a program (a number) or even by a mathematical structure. It is not a primitive structure. It has a reason linked to a

Re: Definition of universe

2009-12-30 Thread Bruno Marchal
Hi Mindey, On 29 Dec 2009, at 15:07, Mindey wrote: I was just wondering, we are talking so much about universes, but how do we define universe? Sorry if that question was answered somewhere, but after a quick search I didn't find it. What do you mean by universe? Do you mean, like many, the

Re: Definition of universe

2009-12-30 Thread John Mikes
Bruno,* * I still wait for the reasoning of the 'primitive' in your: *...if this physical universe can be captured by a program (a number) or even by a mathematical structure. It is not a primitive structure. It has a reason linked to a statistics on computations.-...* What primitive(?)

Definition of universe

2009-12-29 Thread Mindey
Hello, I was just wondering, we are talking so much about universes, but how do we define universe? Sorry if that question was answered somewhere, but after a quick search I didn't find it. Inyuki http://www.universians.org -- You received this message because you are subscribed to the Google

Re: Definition of universe

2009-12-29 Thread John Mikes
Mindey, I hurry to reply before some smarter guys do so on this list, so here is MY opinion: I consider this OUR universe a part of the Multiverse (unknown, unknowable, but assumed) with its 'physical' (so far discovered!) built (similarly assumed) and described as (our) so called 'physical

Re: Definition of universe

2009-12-29 Thread silky
On Wed, Dec 30, 2009 at 1:07 AM, Mindey min...@gmail.com wrote: Hello, I was just wondering, we are talking so much about universes, but how do we define universe? Sorry if that question was answered somewhere, but after a quick search I didn't find it. To me it would be that which is

Re: Definition of universe

2009-12-29 Thread Telmo Menezes
To me it would be that which is contained when you specify a number of dimensions. 2d? The universe can be a piece of paper. But that implies that dimensionality is a fundamental property of reality. It is conceivable that dimensionality is not fundamental, but rather emergent. -- You