A 100-year-old theory might explain what’s wrong with quantum mechanics

Physicist Antony Valentini argues that Louis de Broglie's century-old "pilot wave theory" could resolve quantum mechanics' biggest mysteries by proposing that particles have definite positions guided by accompanying waves, eliminating paradoxes like particles existing in multiple places simultaneously. While mainstream physics discarded de Broglie's complete framework in favor of Schrödinger's wave-only equations, Valentini believes this overlooked approach represents a broader physics where standard quantum mechanics is just a special case.