Best of 2010: Why Our Universe Must Have Been Born Inside a Black Hole by kfc

In July, one physicist said a small change to the theory of gravity implies that our universe inherited its arrow of time from the black hole in which it was born.

kfc 12/29/2010

"Accordingly, our own Universe may be the interior of a black hole existing in another universe." So concludes Nikodem Poplawski at Indiana University in a remarkable paper about the nature of space and the origin of time.
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http://www.technologyreview.com/blog/arxiv/26168/?nlid=3941