Tag: arrow of time

Can you travel back to the past? Films say yes, science isn’t so sure

Can you travel back to the past? Films say yes, science isn’t so sure

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Time travel has been part of the popular imagination for long. From science fiction classics like The Time Machine and Back to the Future to contemporary films like Interstellar played on the notion of slipping through time — whether to witness the past, and even be a part of it, or to glimpse the future. […]

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Why time goes only forward: Science of entropy and irreversibility

Why time goes only forward: Science of entropy and irreversibility

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Why do we grow older but never younger? Why can’t a shattered glass come back together by itself? Why don’t events “unhappen”— we remember yesterday’s mistakes but have no “recollection” of tomorrow’s triumphs? These everyday puzzles all share a single answer: time has a built-in direction, and it points toward increasing disorder. At the heart […]

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