I Coded the Quantum Experiment That Broke Physics

every textbook shows you the double-slit experiment. they all show you the same clean cartoon. this is what it ACTUALLY looks like when you solve the Schrödinger equation on a grid and fire real electrons at it — built from scratch in JavaScript + WebGL, 2D all the way up to a 1M-particle 3D wave. Follow my socials 0:00 ▸ Intro 0:28 ▸ the plan 0:55 ▸ a wall with two slits simulation 1:17 ▸ electrons are actually waves 1:56 ▸ the Schrödinger equation 3:12 ▸ building the step function 3:37 ▸ the bug — probability leaks away 3:58 ▸ FFT — splitting a wave into pure waves 5:57 ▸ the FFT code + split-step fix 7:00 ▸ adding the wall 7:10 ▸ one slit 7:15 ▸ two slits — interference 7:42 ▸ why are there dark bands? 8:00 ▸ which slit? — the detector 8:50 ▸ going 3D 10:05 ▸ CPU dies → GPU + a million particles 10:37 ▸ Final result