If I know my material, I’ve likely considered your question or been asked it before. The problem is, I can’t answer all the questions my material might introduce. It would be boring for reasons described earlier in the book. By the third or fourth time I’ve given a lecture, I’ve heard 70% of the questions I’ll likely ever hear on the topic. But all questions are good questions. Just because I’ve heard it before doesn’t mean I have a great answer yet, so I’m learning no matter how many times I’ve done it.
