Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free, and the first 200 will get 20% off the annual premium subscription.

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If you've been following my channel for a really long time, you might remember that some years ago I made a video about whether faster-than-light travel is possible. I was trying to explain why the arguments saying it's impossible are inconclusive and we shouldn't throw out the possibility too quickly, but I'm afraid I didn't make my case very well. This video is a second attempt. Hopefully this time it'll come across more clearly!

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00:00 Intro
01:51 The Speed of Light as Limit
06:12 The Speed of Light as Barrier
12:44 Time Travel Paradoxes
20:47 Quantum Gravity and Summary
21:54 Learn Physics on Brilliant

#science #physics