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Home Video PBS Video GENIUS BY STEPHEN HAWKING | Doppelgängers Challenge | PBS

GENIUS BY STEPHEN HAWKING | Doppelgängers Challenge | PBS

http://to.pbs.org/1UtjdaP
GENIUS BY STEPHEN HAWKING premieres Wednesdays, May 18-June 1, 2016, 9:00-11:00 p.m. ET on PBS.

A demonstration showing that the realm of possible realities is vast.