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What Is Time?

The 2 Week Diet
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In this course by Dr. Sean Carroll of the California Institute of Technology, he discusses the nature of time.  Professor Carroll approaches time from a philosophical perspective.

“Presentism” holds that the past and future are not real; only the present moment is real.

However, the laws of physics appear to support “eternalism” – the view that past, present, and future are equally real.

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