Stuart Russell, professor of computer science at the University of California, Berkeley, and co-founder of the International Association for Safe and Ethical AI (IASEAI), delivered the first toast at the TIME100 Impact Dinner celebrating the third annual TIME100 AI list. Russel gave a provocative call to make wise choices about how we use AI, given the high existential stakes involved. Russell, who has long warned that building AI systems more intelligent than humans when we don’t know how to