Quantum entities remain indeterminate until they are measured, and measuring them seems to be able to change their entangled pairs even across distances, in apparent violation of relativity. It was like a kind of magic trick, as one commentator pointed out. It was as if twins always managed to order a different drink no matter what bar they were in and how far apart the bars were. “If one says, ‘Beer,’ the other instantaneously says, ‘Whiskey.’ ”[39] And to make matters even more mysterious, you could change one twin’s order in the act of ordering and, lo and behold, the other twin’s order
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