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Physicist Claims Simple Math Rules Out Time Travel in Many Universes

Original: Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says

A physicist argues that a short, three-line mathematical argument rules out time travel across a broad class of possible universes, according to coverage by ScienceAlert and Yahoo News. The claim suggests that under certain cosmological conditions, closed timelike curves cannot exist, making travel to the past impossible in those scenarios rather than merely impractical.

Why now: Time travel is a perennially popular topic and a simple proof ruling it out is striking news.

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Evidence

• Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says · ScienceAlert
• Just 3 Lines of Math Rule Out Time Travel in Many Possible Universes, Physicist Says · Yahoo

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