**Stephen P. King** (*stephenk1@home.com*)

*Sat, 03 Apr 1999 10:26:28 -0500*

**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Next message:**Hitoshi Kitada: "[time 116] RE: [time 113] RE: [time 69] Spacetime & consciousness"**Previous message:**Stephen P. King: "[time 114] Re: prugovecki"**Next in thread:**Hitoshi Kitada: "[time 121] RE: [time 115] On Pratt's Duality [time 81] Entropy, wholeness, dialogue, algebras"

Hi All,

A brief note. The duality that Pratt speaks to can is exeplified by the

duality between the set of vectors in a tangent space and its cotangent

space of linear functionals. Each of these can be seen as a 4-space. It

could be that octonions are involved, but I do not know the details. But

I do notice that this looks like Matti's thoughts:

*> "One one results on my side was the realization that 8-dimensional
*

*> imbedding space H of TGD allows octonionic structures as tangent space
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*> structure: one could say that H is locally a number field. Future
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*> lightcone of Minkowski space allows very natural quaternion structure.
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*> This was a surprise for me since I had used to think quaternions are
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*> as inherently Euclidian space: one can however define also Minkowksi
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*> metric: inner product is defined as the real part of xy instead of
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*> real part of x^*y."
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and

*> "In TGD framework cognitive spacetime sheets, which are nearly vacuum and
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*> have finite time duration. [Energy and other conserved quantities flow
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*> from material spacetime sheets to cognitive sheets when they are formed
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*> and back to material spacetime sheets when cognitive spacetime sheets
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*> disappear.] The entanglement of cognitive spacetime sheets, 'Mind' with
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*> spacetime sheets carrying matter, 'Matter' is reduced in allowed quantum
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*> jumps."
*

I am interested in how we pair-wise partition the Universe into, to use

MAtti's terms, material and cognitive spacetimes. I think the former are

modeled by Pratt's Body and the latter by Mind. There is an optimization

involved that looks like Matti's ideas, but I am missing the details of

its mechanism. Is it like a step-wise adaptation or a converging

tournament of games or a darwinian group selection, or all of the above?

:) Could the act of communication be represented by "wormholes"? How do

we quantitate the information flow allows by wormholes?

Later,

Stephen

**Next message:**Hitoshi Kitada: "[time 116] RE: [time 113] RE: [time 69] Spacetime & consciousness"**Previous message:**Stephen P. King: "[time 114] Re: prugovecki"**Next in thread:**Hitoshi Kitada: "[time 121] RE: [time 115] On Pratt's Duality [time 81] Entropy, wholeness, dialogue, algebras"

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