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Article 5770 of comp.ai.philosophy:
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>From: clarke@acme.ucf.edu (Thomas Clarke)
Newsgroups: comp.ai.philosophy
Subject: Re: Grounding: Real vs. Virtual
Message-ID: <1992May20.125448.3134@cs.ucf.edu>
Date: 20 May 92 12:54:48 GMT
References: <1992May20.024456.29434@news.media.mit.edu>
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In article <1992May20.024456.29434@news.media.mit.edu> minsky@media.mit.edu  
(Marvin Minsky) writes:
> To me this is a strange belief, that the present state of a system is
> not enough.  To be sure, in classical mechanics, the coordinates are
> not enough; one also needs the first derivative.  

In article <1992May20.034459.8223@Princeton.EDU> harnad@shine.Princeton.EDU  
(Stevan Harnad) writes:
> A robot could spring fully formed out of the
> head of Zeus and if it had full TTT capacity, it would be
> grounded.

In principal the phase-space coordiates are enought, but for non-linear 
chaotic systems, any uncertainty in the value leads to O(1) future 
uncertainty.  

For a chaotic system the "past history" results in the current state, 
but it is impossible in practice to reproduce the current state.  Thus,
there is a sense in which the system can only be seen as an on-going
process replete with history.  Springing full blown from the head of Zeus
is just practical for chaotic systems.

P.S.  I have seen several papers on the universal and otherwise 
computational capabilities of dynamic systems - I will dig out references
if interested - if computational intelligence is possible, then there
exist intelligent chaotic dynamic systems.  Probably human brains 
are a physcial demonstration chaotic intelligence.


