David Silver is a billionaire, sort of. His stake in Ineffable Intelligence—the artificial intelligence lab he founded—is worth an ungodly fortune. But he stands to collect none of that money himself. He set things up that way.Between 2013 and 2025, Silver worked as a researcher at Google DeepMind. He specialized in reinforcement learning, a method of teaching an AI model through positive and negative feedback. In 2016, he led the development of AlphaGo, which became the first AI to defeat a hum...