From: Jonathan Rochkind <jrochkin@cs.oberlin.edu>
To: doug@OpenMind.com
Message Hash: c22628344e712ca1cd52c0b5e2eb104a1a1d2bbb8d72de5e0add7d6149ea4a30
Message ID: <199407092028.QAA25498@cs.oberlin.edu>
Reply To: N/A
UTC Datetime: 1994-07-09 20:28:18 UTC
Raw Date: Sat, 9 Jul 94 13:28:18 PDT
From: Jonathan Rochkind <jrochkin@cs.oberlin.edu>
Date: Sat, 9 Jul 94 13:28:18 PDT
To: doug@OpenMind.com
Subject: Re: All the free energy in the universe
Message-ID: <199407092028.QAA25498@cs.oberlin.edu>
MIME-Version: 1.0
Content-Type: text/plain
> The late Nobel laureate Richard Feynman became very interested in the
> subject of computation and physics towards the end of his life. My
> understanding is that he concluded that there was no apparent
> limitation to the amount of computation that could be completed with a
> given amount of free energy. Computation may indeed always dissipate
> energy, but Feyman's conclusion was that this dissipated energy can be
> made arbitrarily small -- that there is no fundamental quantum
> limitation on the amount of computation that can be performed at any
> given mass-energy scale.
Actually, I _think_ I've read an article in a pop-science magazine about
some work of Hawking's that indicated there was a minimum amount of energy
neccesary to do some sort of quanta of computation. (is there such a thing
? I don't know enough about the math, I'm afraid. INformation theory?)
If my memory serves, he used this to hint at a solution to the
"why does time only flow in one direction, when the mathematics are perfectly
symmetrical both ways?" question.
But I could be wrong. Sorry I don't have any better info then you.
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