Watch Smarter: How Movies Get Time Travel Wrong (and Sometimes Right)

Watch Smarter (of http://www.slate.com) recently published a video about the accuracy of time travel (as portrayed through film). The authors say:

This is not an artistic assessment. It’s a metaphysical truth, at least according to philosophers. Regardless of whether time travel will ever be physically possible, the question we’re going to consider is how it would work logically if it did work at all.

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