Space and Time Warps |
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Hawking (Stephen) |
Source: Stephen Hawking's Website |
Paper - Abstract |
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Author's ConclusionThe conclusion of this lecture is that rapid space-travel, or travel back in time, can't be ruled out, according to our present understanding. They would cause great logical problems, so let's hope there's a Chronology Protection Law, to prevent people going back, and killing our parents. But science fiction fans need not lose heart. There's hope in string theory.
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