Such things are not surprising at the quantum scale: Our standard model of particle physics is invariant under time reversal. However, reversing time on the macroscopical scale is prohibited by thermodynamical and causal arguments and (still?) experimentally inaccessible.
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[ 0.20 ms ] story [ 14.1 ms ] thread(Side note: https://arxiv.org/abs/1712.10057 is not yet crossrefered, but the "community-canonical" open access verison of https://www.nature.com/articles/s41598-019-40765-6)
Such things are not surprising at the quantum scale: Our standard model of particle physics is invariant under time reversal. However, reversing time on the macroscopical scale is prohibited by thermodynamical and causal arguments and (still?) experimentally inaccessible.