The science fiction author Isaac Asimov once came up with a set of laws that we humans should program into our robots. In addition to a first, second, and third law, he also introduced a “zeroth law,” which is so important that it precedes all the others: “A robot may not harm humanity, or, by inaction, allow humanity to come to harm.”This month, the computer scientist Yoshua Bengio — known as the “godfather of AI” because of his pioneering work in the field — launched a new organization called ...