Time travel has fascinated humanity for generations, but it’s long been dismissed as impossible due to the "grandfather paradox." This thought experiment poses a mind-bending question: what happens if you travel back in time and prevent your grandfather from having children, thus erasing your existence?
The paradox seemed insurmountable—until now. However, a new study combining general relativity, quantum mechanics, and thermodynamics suggests time travel might sidestep such contradictions.
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