The disaster I never imagined having to worry about

The crystals that wiped out an HIV medication, almost overnight. Thanks to SoFi for sponsoring the video! Click here to sign-up for SoFi Checking and Savings: https://sofi.com/ve If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter ▀▀▀ Check out the excellent video by Reactions here: https://youtu.be/PccOwGEbtQU?si=NOpmaulDcoq6Kif- This video was a huge collaborative effort! Special thanks to… Dr Andreas Kafizas for all his help with the Silver and Tin demonstrations, and staying up for those 14 hours with us monitoring the timelapse! As well as Conrad Duncan and the team at Imperial College London. @ChrisYoungCooks for teaching Casper how to temper chocolate and @jameshoffmann and the team for letting us take over their studio; we had a great day! Many thanks to Professor Adam Matzger, Professor Katharina Fromm and Professor Mike Zaworotko for taking the time to talk to us. Also thank you to Dr. William McVicker and the British Institute of Organ Studies and Chris at Luciteria Science for helping us source our grey and white tin samples. ▀▀▀ 0:00 The Disease Infecting Miracle Medicine 4:20 An Explosive Feud 10:05 How The Same Compound Can Behave Two Different Ways 13:18 Polymorphs Of Chocolate 19:51 Why Ritonavir Stopped Working 22:57 The Tin Pest 27:28 Disappearing Polymorphs 30:20 Is Everything Polymorphic? ▀▀▀ References can be found here - https://ve42.co/PolymorphRefs ▀▀▀ Special thanks to our Patreon supporters: Adam Foreman, Albert Wenger, Alex Porter, Alexander Tamas, André Powell, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Blake Byers, Bruce, Bryan Ackermann, Cartier, Chris Brewer, Daniel Martins, Data Don, Dave Kircher, David Johnston, David Tseng, EJ Alexandra, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, Hayden Christensen, Hong Thai L