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261. Jim Al-Khalili on the Joy of Science

The Michael Shermer Show

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Is There an Arrow of Time?

There is no arrow of timet. We know that the causes always precede effects, but at fundamental physics level, which i don't understand,. I'm not quite sure i get that. But we know there's an hour of time pointing from past to future. And you can trace it all the way back to saying our universe was in a very highly ordered low entropy state at the big bang. So where does that past and future come from? Now, thethe consensus is that it's because ar the moves from a highly ordered to a disordered state, an increase in entropy, the amount of disorder.

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