[extropy-chat] Schrodinger's Black Cat

Damien Broderick thespike at satx.rr.com
Thu Jul 22 18:13:00 UTC 2004

or do I mean Schrodinger's Cat's Black Hole?

or Schrodinger's Entangled Cat?

< In his new calculation, Dr. Hawking said that because of quantum 
uncertainty, one could never be sure from a distance that a black hole had 
really formed. There is no way to discriminate between a real black hole 
and an apparent one.

In the latter case an event horizon, the putative point of last return, 
could appear to form and then unravel; in that case the so-called Hawking 
radiation that came back out would not be completely random but would have 
subtle correlations and thus could carry information about what was inside.

According to quantum theory, both possibilities - a real black hole and an 
apparent one - coexist and contribute to the final answer. The contribution 
of the no-black-hole possibilities is great enough to suffice to allow 
information to escape, Dr. Hawking argued. >


Damien Broderick

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