On 2/6/2012 9:03 AM, 1Z wrote:
  There is also a "conservation" of information.  It is
>  apparently industrictable.
Is there? if there is , it is a phsycial law, and AFAIK it is hotly
debated.


It's the same as the question of wave-function collapse. QM without collapse is time-reversible and so conserves information. With collapse it doesn't. But even without collapse information may become unavailable to us due to statistical diffusion into the environment or crossing and event horizon.

Brent

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