What If a Flash Wiped Out Everyone's Memories?

Imagine, it comes out of nowhere. A blinding flash, spanning the entire globe. It lasts only a few seconds, but when it's over, everyone's memories have been erased. We’re talking almost 8 billion people suddenly forgetting who they are, overwhelmed by panic and confusion. What would the aftermath of the flash be like? And could this actually happen?

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.