Produced by: Mohsin Shaikh
Time travel has long been dismissed due to paradoxes like the "grandfather paradox," which suggests altering the past could erase one’s existence.
Einstein’s general relativity predicts the existence of closed timelike curves—space-time loops allowing theoretical travel back to past events.
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In a rotating universe, space-time could warp into loops, enabling a traveler to return not just to a location but also to a point in time.
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Entropy, the measure of disorder, governs aging, memory, and irreversible events, raising questions about how it behaves in time loops.
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Lorenzo Gavassino, a physicist at Vanderbilt University, published research showing quantum fluctuations in time loops could reverse entropy, nullifying paradoxes.
Using quantum mechanics, Gavassino demonstrated how time loops align events to create logically consistent histories, resolving contradictions.
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On a time loop, entropy’s reversal could theoretically undo aging, memory loss, and even death, making irreversible events temporary.
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Despite the theory, physicists like Stephen Hawking proposed the "chronology protection conjecture," suggesting time loops might never form due to space-time singularities.
Even if time loops don’t exist, studying their theoretical behavior could deepen our understanding of entropy, quantum mechanics, and the universe’s fundamental laws.
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