> “In 1964, two physicists found a workaround. Pierre Hohenberg and Walter Kohn proved that they could perfectly capture every aspect of a molecule by smearing its electrons together into a contrived fluid — one that is thicker in some spots and thinner in others. The density of this electron juice contains all the information on the molecule’s complex wave function, they showed, freeing physicists from the impossible task of tracking electrons individually.” Electron Juice™ https://www.deepmind.com/blog/simulating-matter-on-the-quantum-scale-with-ai