Science
Paradox-Free Time Travel Is Theoretically Possible, Researchers Say – North Country Public Radio
In the peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn’t necessarily cause a universe-ending paradox. Phew.

“The past is obdurate,” Stephen King wrote in his book about a man who goes back in time to prevent the Kennedy assassination. “It doesn’t want to be changed.”
Turns out, King might have been onto something.
Countless science fiction tales have explored the paradox of what would happen if you do something in the past that endangers the future. Perhaps one of the most famous pop culture examples is Back to the Future, when Marty McFly went back in time and accidentally stopped his parents from …
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