Sci & Tech● Low49m ago · Nov 9, 2026, 8:10 AM
No going back: physicist’s proof claims time travel can only take us to the future
GlobeAlert Desk · curated from EuroNews [en] · global
A physicist has distilled time travle into three lines of proof that shows if spacetime can be sliced into layers of light, every traveller must cross them in the same direction, so no journey can ever loop backwards.
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