**Matti Pitkanen** (*matpitka@pcu.helsinki.fi*)

*Wed, 31 Mar 1999 07:45:20 +0300 (EET DST)*

**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Next message:**ca314159: "[time 78] Re: [time 72] RE: [time 69] Spacetime & consciousness"**Previous message:**Ben Goertzel: "[time 76] Re: [time 72] RE: [time 69] Spacetime & consciousness"**Maybe in reply to:**Hitoshi Kitada: "[time 72] RE: [time 69] Spacetime & consciousness"

On Tue, 30 Mar 1999, Ben Goertzel wrote:

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*> hi,
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*>
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*> > Agreed, but... To redirect... :) I picked up my copy of Gerald
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*> >Edelman's "Bright Air, Brilliant Fire: On the matter of the mind" and I
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*> >am reminded of why I am so much of a fan of Edelman! You should read
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*> >this book! His Theory of Neuronal Group Selection (TNGS) has very much
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*> >influenced what I am thinking of how Local Systems (LSs) interact.
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*>
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*>
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*> Yes, I know Edelman's work well ... it was one of the inspirations for my
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*> mathematical model of the mind
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*>
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*> I do see the parallel here, on a very abstract, archetypal level. He
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*> proposes
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*> a different logic for interaction between neuronal groups, than the one that
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*> applies
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*> between neurons.
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There is article of Edelman and Tononi in Science few months ago (I cannot

find the referenec now). I found that they used very similar concepts in

their classical theory of consciousness as appear in the formulation

of negentropy maximization principle of TGD. They introduced classical

entropy like concept and measure of complexity based on this entropy.

I am not quite sure whether they claimed some kind of maximization of

complexity to take place: they did not propose any explicit principle

selecting which group of neurons gives rise to conscious experience.

In TGD the entropy associated with density matrix of subsystem is in

key role: strong form of Negentropy Maximization Principle states

that in a given quantum state quantum jump is performed by the subsystem

for which the negentropy gain is maximum in quantum jump reducing

entanglement entropy to zero. The 'physical' interpretation is following:

entanglement is measure for attentiveness not yet involving consciousness.

Entanglement entropy measures, not the information content of

conscious experience, but how 'catchy' the potential conscious

experience is. The most catchy consciouss experience is experience.

Mass media people would certainly agree with this!

The problem is to find also a measure for the information content

of conscious experience and there are quite explicit ideas also about

this. The modification of Roy Frieden's ideas to TGD context lead to

the idea that the number of degenerate absolute minima of Kahler action

going through given 3-surface X^3 (there are several of them by classical

nondeterminism) is entropy typ measure for the cognitive resources of

3-surface. This number, call it N_d(X^3), is like the degeneracy factor

g(E) of states of same energy in thermodynamics. In string thermodynamics

g(E) behaves like exp(-E/T_H), where T_H is Hagedorn temperature and

thermodynamics does not exist for T>= T_H since partitition function

diverges.

The hypothesis is that TGD is like string thermodynamics in the sense that

N_d(X^3) behaves like exp(-K_cr(X^3)), where K_cr is Kahler function for

critical value alfa_cr of the Kahler coupling strength alfa (the only

coupling constant type parameter in TGD). This implies that alfa_cr is

like Hagedorn temperature: if alfa is larger or equal than alfa_cr,

theory does not exist. Quite recently I learned that for alfa=alfa_cr

theory exists if one p-adicizes it. At quantum criticality the universe

is as interesting and intelligent as it can be since maximum number of

3-surfaces contributes to the functional integral weighted by vacuum

functional exp(-K). If this hypothesis is correct, the absolute

minimization of Kahler action which is the basic dynamical principle says

simply that cognitive resources of given 3-surface, are maximized.

To sum up, both variational principles of TGD relate to consciousness:

second principle states the maximization of catchiness of a potential

conscious experience and second principle states that cognitive resources

are maximized. We live in the best possible world although it does

not always look so(;-).

Matti

**Next message:**ca314159: "[time 78] Re: [time 72] RE: [time 69] Spacetime & consciousness"**Previous message:**Ben Goertzel: "[time 76] Re: [time 72] RE: [time 69] Spacetime & consciousness"**Maybe in reply to:**Hitoshi Kitada: "[time 72] RE: [time 69] Spacetime & consciousness"

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