An ancient idea is still alive in the most advanced theory of physics today: that matter consists of a set of ultimate particles. But the obsession with going beyond the Standard Model and finding more and more particles to solve the problems of physics is victim to a theoretical and experimental framework that has run its course. Sabine Hossenfelder, Gavin Salam, and Bjørn Ekeberg debate the future of particle physics at HowTheLightGetsIn festival.