A man in a fedora walks into an empty classroom on the second floor of a building on Washington University's campus and waits in the darkened room. He has never been here before — not to this classroom, not... More >>>
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Courtesy Nelson Dellis
Nelson Dellis, the reigning U.S. champion and an up-and-comer in the world competition, can memorize the order of a pack of playing cards in just over a minute.