Experiments Deliver Superposition Of Photon Going Forward And Backward In Time

Enami TV News: It is believed to be related to the concept of entropy (which always increases in an isolated system like the universe) but it doesn’t seem to be as fundamental at the quantum level.
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Information in this report sourced from: https://www.iflscience.com/experiments-deliver-superposition-of-photon-going-forward-and-backward-in-time-66181.