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John PreskillJohn Preskill wins wager with Stephen Hawking

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In July 2004, at the 17th International Conference on General Relativity and Gravitation, Professor John Preskill received Total Baseball: The Ultimate Baseball Encyclopedia from Stephen Hawking. The two, along with Caltech Professor Kip Thorne, wagered on whether information is preserved or not upon being sucked into a black hole.

Preskill, John D. MacArthur Professor of Theoretical Physics at Caltech, and Director of IST's Center for the Physics of Information, made a bet in 1997 with Hawking and Thorne that information is indeed preserved upon entering a black hole, and is not destroyed, as Hawking and Thorne maintained. While Hawking now agrees with Preskill, Thorne has yet to concede the bet.

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