X-Message-Number: 25153
From: 
Date: Wed, 24 Nov 2004 23:37:45 EST
Subject: Re: CryoNet #25130 Donaldson

From T. Donaldson:
> 
> So things do look grim for someone who's decayed for a week. I'll 
> point out, though, that there's still a fuzzy area. Recently on 
> Cryonet I pointed out some scientific work on neurons which suggests
> that someday we might be able to revive brains after 3 full hours
> at room temperature.
> 

Some years ago, the biological limit was 6 mn. Now it is 3 h... That is for 
biology at room temperature.  So a brain could be keept in running state for 
that duration. What if we include time with destructions but sufficient 
information to infert the original structure?

>And within quantum mechanice we can't label 
>atomic particles (electrons, neutrons, protons) so that there's no
>way to recover the former molecules, much less their former locations
>with respect to one another.

Dispersion  after cell decay comes from the brownian motion, a random but 

classical process, nothing to do with quantum mechanics. A quantum computer 
could 
sort out the parts.

For quantum mechanics, I have some studies background behind me. What I would 
say is that even in the frame of first quantification and basic Hilbert's 
space we have only barely scratched the surface. Don't forget for example that 

space coordinates count: if two electrons are not at the same place, we can sort
them out. Have you taken into account the multilinear spin space exploited by 
quantum computers? The correcting terms of Feynman's diagrams? With quantum 

mechanics, we can say that something is possible when we have understood a part
of it, but we can't say something in impossible or forbiden because we lack a 
complete picture of it.

Yvan Bozzonetti.



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