What is Déjà Vu?!

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I feel like I've seen this video before…
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Most of us have felt it before, that strange sensation that you've been somewhere or seen something before, as if you already remembered what's happening. Are you psychic? Nope, that's just déjà vu. Why does déjà vu happen? Well, scientists aren't completely sure, but they've got a few good theories about it.

Great déjà vu explainer from Jordan Gaines Lewis: http://www.gainesonbrains.com/2012/02/seeing-into-future-neuroscience-of-deja.html

Some theories of why déjà vu happens: http://theconversation.com/explainer-what-is-deja-vu-and-why-does-it-happen-11355

And now for something completely different: https://www.youtube.com/watch?v=G2eUopy9sd8

Special thanks to Austin's Corona Cafe!

Cast:
Waiter - Joe Nicolosi (he's also the director)
Sneezing girl - Kate Eads (she's also associate producer)
Guy spilling coffee - John Knudesn (he's also gaffer)

Have an idea for an episode or an amazing science question you want answered? Leave a comment below!

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It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
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Produced for PBS Digital Studios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Andrew Matthews - Editing/Motion Graphics
Katie Graham - Director of Photography
John Knudsen - Gaffer
Dalton Allen - Post-Production Intern

Theme music:
"Ouroboros" by Kevin MacLeod

Other music via APM

Stock images from Shutterstock

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Last week's video:
5 Weird Involuntary Behaviors Explained: http://www.youtube.com/watch?v=ZE8sRMZ5BCA

More videos:
Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM
The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is
There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo
How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY

Видео What is Déjà Vu?! канала Be Smart