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Why does time only seem to flow in one direction?

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Almost nothing is more obvious than the fact that time flows from the past, which we remember, toward the future, which we don't. Scientists and philosophers call this the psychological arrow of time. read more

Because the past will always be behind you, and the future in front. If you could travel sideways in time, you would be stuck in same spot in time because nothing would progress forward. read more

Heat generation increases entropy and is an irreversible process, so the laws of thermodynamics require that such objects can only run in one direction: from past to future. But memories don’t have to generate heat, point out Brun and physicist Leonard Mlodinow of the California Institute of Technology. read more

Regardless of the direction they run in, the new universes created in these big bangs will continue the process of increasing entropy. In this never-ending cycle, the universe never achieves equilibrium. If it did achieve equilibrium, nothing would ever happen. There would be no arrow of time. read more

All laws of physics work the exact same forward in time, as they do backward in time, except for the 2nd law of thermodynamics, which is about what Jatin is referring to: the increase of entropy on larger scales. read more

The question about the arrow of time has vexed physicists for a century because “for the most part the fundamental laws of physics don’t distinguish between past and future. They’re time-symmetric,” Carroll said. And closely bound to the issue of time is the concept of entropy, a measure of disorder in the universe. read more

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Albert Einstein quote: Time is not at all what it seems ...
Source: azquotes.com