The risk hides inside the usefulness. Chatbots can help people test ideas, move faster, and find new angles, but a finished response can also cut users off from the messy trail that makes learning stick. When that happens, information arrives without the struggle that turns it into judgment. The Royal Observatory’s argument carries weight because it comes from an institution built on patient observation, not quick summaries. Paddy Rodgers, director of Royal Museums Greenwich, points to...