Is Time Travel Possible? Here's What Physics Says.

Check out Robert's book "Faster Than Light" ➜ https://www.amazon.com/Faster-than-Li...
Kindle: https://www.amazon.com/Faster-than-Li...

What does physics say about time travel? Surprisingly enough it doesn't just say it's impossible, it's more complicated than that. In this video I'll sort out what Einstein's general relativity and quantum mechanics tell us about time travel. And is MIT really building a time machine to find dark matter? We'll get to that.

This video has a quiz which you can take here: https://quizwithit.com/start_thequiz/...

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00:00 Intro
00:20 What do we mean by time travel?
02:51 Special Relativity
04:33 General Relativity
10:07 Time travel paradoxes
12:28 Time-reversal
16:10 New book "Faster than Light"

#science #physics