Quantum discreteness: photons and early QM

Stephen Wolfram answers questions from his viewers about the history of science and technology as part of an unscripted livestream series, also available on YouTube here: https://www.youtube.com/watch?v=IE03Z481PVg&list=PLxn-kpJHbPx3IO8b1yvkNyASj9i_Tw4n8&pp=0gcJCdAEOCosWNin

Topics: How the idea of discrete space developed - Why personal records matter for the history of science - How people and fields become part of history - Encounters with the past through people, machines and artifacts