Something Weird Happens When E = –mc² dives into Paul Dirac’s wild discovery that flipping the sign on Einstein’s famous energy–mass equation predicts an entire anti-universe. By walking us through the breakdown of the Schrödinger and Klein–Gordon equations and the birth of the Dirac equation, the video shows how theory led to the positron and the jaw-dropping idea that antiparticles might literally travel backward in time.
With expert insights from Graham Farmelo and Cumrun Vafa, plus rich archives from FSU and Caltech, Derek Muller delivers a punchy, history-packed explainer full of animations, interviews, and the dramatic highs and lows of 20th-century physics. Sponsored by Hostinger, it’s physics storytelling at its quirkiest and most mind-bending.
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