Just a few days after the release of GPT-4, thousands of AI scientists signed an open letter calling for a six-month moratorium on researching the most powerful AI models. Referencing the Asilomar principles, they cited reasons familiar to those reading this book: “Recent months have seen AI labs locked in an out-of-control race to develop and deploy ever more powerful digital minds that no one—not even their creators—can understand, predict, or reliably control.”