On 5/5/2001, Hal Finney wrote:
>A reversible computer is as likely to take a step backwards as forwards.
>So even if it manages to complete a calculation from A to B, the process
>will be a random walk, moving forward and backwards many times over each
>portion of the path from A to B.
I think you mean to say that it is *nearly* equally likely to take
steps in either direction. There needs to be some small bias to get
something predictable to happen.
Robin Hanson rhanson@gmu.edu http://hanson.gmu.edu
Asst. Prof. Economics, George Mason University
MSN 1D3, Carow Hall, Fairfax VA 22030-4444
703-993-2326 FAX: 703-993-2323
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