Physicists can t stop black holes from evaporating, but they might be able to keep a cherished principle of quantum physics from being broken in the process.
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By ESTHER LANDHUIS
Persi Diaconis has spent much of his life turning scams inside out. In 1962, the then 17-year-old sought to stymie a Caribbean casino that was allegedly using shaved dice to boost house odds in games of chance. In the mid-1970s, the upstart statistician exposed some key problems in ESP research and debunked a handful of famed psychics. Now a Stanford professor of mathematics and statistics, Diaconis has turned his attention toward simpler phenomena: determining whether coin flipping is random. Could a simple coin toss used routinely to decide which team gets the ball, for instance actually be rigged?