Is Copenhagen or Many Worlds true? An experiment. What? Yes.

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If this paper is right, an experiment should be possible.

Building it also doesn’t seem that hard to do technically, so I think it could be interesting to watch in the coming months/​years.

If Many Worlds dies, we would seem to have a perpetual motion machine of the second kind. But if the second law of thermodynamics prevails, Copenhagen should provably be wrong.

All, if this paper is right. Does somebody find a mistake?

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