For most of history, hiring a dozen PhDs meant a massive budget and months of lead time. Today, a few keystrokes in a chatbot summon that brainpower in seconds.As intelligence becomes cheaper and faster, the basic assumption underpinning our institutions — that human insight is scarce and expensive — no longer holds. When you can effectively consult a dozen experts anytime you like, it changes how companies organize, how we innovate and how each of us approaches learning and decision-making. The...