Science: Challenge to Psi

Many people, impatient with man's mental limitations, insist that he has a whole set of hidden abilities that have long been ignored. In one such school are University of London Mathematician S. G. Soal and Duke University Psychologist Dr. Joseph B. Rhine, who term themselves parapsychologists.* They use sets of dice and packs of cards bearing numbers, letters or symbols, say that certain subjects can guess card identities or control the roll of dice beyond mathematical probability—even from a great distance. Their explanation: there exists in the human makeup a mysterious force called psi (from the Greek letter ψ) which carries...

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