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Veritasium: Something Weird Happens When E=-mc

Something Weird Happens When E = –mc² takes you on a wild ride through the world of negative energy in quantum physics. Derek Muller digs into Paul Dirac’s brilliant but baffling equation, showing how a “mistake” in Schrödinger’s math led to the prediction of antiparticles—like the positron—and even hints at an entire anti-universe where time might run backward.

Along the way, we get the lowdown from big-name experts like Graham Farmelo and Cumrun Vafa, explore rare archives from FSU and Caltech, and unpack mind-bending ideas like Heisenberg’s uncertainty and particles traveling back in time. It’s a whirlwind history lesson and thought experiment wrapped in neat animations, powerful anecdotes, and plenty of “holy moly” moments.

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