Thanks.

On 3/20/07, Bruno Marchal <[EMAIL PROTECTED]> wrote:
>
> You could be interested by a paper introducing String theory as a
> syntactical logical structure by the "other Schmidhuber" (Juergen's
> brother Christof):
>
>
> Here:
>
> http://arxiv.org/abs/hep-th/0011065
>
>   What are strings made of? The possibility is discussed that strings
> are purely mathematical objects, made of logical axioms. More
> precisely, proofs in simple logical calculi are represented by graphs
> that can be interpreted as the Feynman diagrams of certain large-N
> field theories. Each vertex represents an axiom. Strings arise, because
> these large-N theories are dual to string theories. These ``logical
> quantum field theories'' map theorems into the space of functions of
> two parameters: N and the coupling constant. Undecidable theorems might
> be related to nonperturbative field theory effects.
>
>
>
> This is infinitely better than Wolfram pure classical CA approach which
> has no rules for distinguishing 1 and 3 person notion, and so miss the
> idea of internal emerging physical laws.
>
>
>
>
> Le 14-mars-07, à 10:23, Mohsen Ravanbakhsh a écrit :
>
> > I'm thinking there's some kind of similarity between string theory and
> > depicting the world as a big CA. In String theory we have some
> > vibrating strings which have some kind of influence on each other and
> > can for different matters and fields. CA can play such role of
> > changing patterns and of course the influence is evident. Different
> > rules in CA might correspond to various basic shapes of vibration in
> > strings...
> > I don't know much about S.T. but the idea of such mapping seems very
> > interesting.
> >
> > --
> > Mohsen Ravanbakhsh.
> >
> >
> >  >
> >
> http://iridia.ulb.ac.be/~marchal/
>
> >
>


-- 

Mohsen Ravanbakhsh,
Sharif University of Technology,
Tehran.

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