Second day of the AI summit in Barcelona, in a room with maybe two hundred people in it, a governance speaker asked how many of us had the authority to stop an AI system we oversee, not merely flag a concern about it. Nobody raised a hand. Then she sharpened it: " human in the loop " has become a checkbox, and the question worth asking is which human, with what authority. Every organization in that room would answer yes to a survey question about human oversight. The documentation exists. Som...