Comments by "⃠" (@U20E0) on "The 9 Experiments That Will Change Your View of Light (And Blow Your Mind)" video.

  1. There is actually no paradox in that quantum eraser experiment. The light always goes down both paths. It knows whether to collapse or not because by the time it reaches the detector it already has either encountered the splitter or not. You seem to have confused this experiment with another one sharing the same name, but having a much more complex setup involving 2 slits, 6 beam splitters, 5 detectors, and a crystal which splits a photon into 2 entangled photons. That one actually does present very weird results, but sending information back in time is still not necessary or possible per consensus
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