Something Weird Happens When E = −mc²

Ever wondered what happens when you let energy go negative? Veritasium unpacks how Paul Dirac spotted a loophole in the Schrödinger equation, wrestled with Heisenberg’s uncertainty, and came up with the Dirac equation that literally predicted antimatter before anyone saw it.

Along the way you’ll meet the anti-electron (the positron), see why antiparticles behave like particles running a film backward in time, and peek into the idea of an entire “anti-world.” It’s a fast-paced journey through groundbreaking theories, historical archives, and some seriously mind-bending physics.

Watch on YouTube