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Is it only necessary a human consciousness? A measurement device? Can it be said that any of them cause the wave function collapse?


marked as duplicate by John Rennie, Kyle Kanos, DumpsterDoofus, Emilio Pisanty, David Z May 5 '14 at 15:45

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    $\begingroup$ If I could answer this in a definite manner, I would be collecting Nobel's every year for the rest of my life... $\endgroup$ – Your Majesty May 5 '14 at 12:36