Stump the so-called experts Finally, the house lights are raised and the students ask questions. This is the toughest part of the gig. Sometimes we don't know the answers. Sometimes we do, but don't know how to explain things at a fifth-grade level. In the ensuing chaos, you can attempt to regain your regal composure.
Some questions are totally unconnected with the subject at hand.
One question was about time zones. At least there was no follow-up question. They will ask you anything. They will make you look bad. They will make you realize how little like Richard Feynmann you are.