Fascinating that this is getting so much traction on Hacker News, given how technical and physics-specific it is. Guess there's a lot of physicists on here (hi all!)

This PDF is a summary of a really interesting and surprising research direction in modern theoretical physics. It came out of trying to explain why certain extremely complex calculations gave unexpectedly simple results. People like Nima Arkani-Hamed thinks that it a sign of new/deeper principles underlying the current laws of physics, though not everyone follows the logic quite this far. See https://www.quantamagazine.org/physicists-discover-geometry-...