Russell Standish wrote:
> Unitary evolution preserves information. It is only through
> measurement by an observer that information can be created or
> destroyed. Usually, the second law is interpreted as the destruction
> of information (anyone observing a closed system will over time know
> less information about the system), so it puzzles me that you have the
> sign the other way.
What? You're saying that if I observe a system, then I know less about it. You
must be using some non-standard meaning of "know".
Brent Meeker
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Received on Mon Apr 10 2006 - 03:04:46 PDT