The Download: brain implant removal, and Nvidia's AI payoff

June 2022 Around a year and a half ago, Yann LeCun realized he had it wrong. LeCun, who is chief scientist at Meta's AI lab and a professor at New York University, is one of the most influential AI researchers in the world. He had been trying to give machines a basic grasp of how the world works--a kind of common sense--by training neural networks to predict what was going to happen next in video clips of everyday events. But guessing future frames of a video pixel by pixel was just too complex. Now, after months figuring out what was missing, he has a bold new vision for the next generation of AI, which he thinks will one day give machines the common sense they need to navigate the world.