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What is déjà vu? What is déjà vu?

You might have felt it — the feeling that you’ve experienced something before, but, in reality, the experience is brand new. There are over 40 theories that attempt to explain the phenomenon of déjà vu. Michael Molina explains how neuroimaging and cognitive psychology have narrowed down the theories that could explain that feeling you’re having…again.


Lesson by Michael Molina, animation by Josh Harris.