Very enjoyable! I started working a few problems in my head, and realized I'd run out of scratch ram quickly.<p>I especially liked his points on examination, what we call the "orals" in Physics. There, the (in his words, defenseless) student is up in front of a board, while professors throw problems at them. I had a few good questions on mine, and one which was ... poorly specified. I remember thinking I simply had to crank on that problem, showing my thinking processes to try to answer the question. At the end, the prof nodded, pointed to something before my conclusion, and said "that was as far as I got."<p>I remember feeling relieved yet angry. Just smiled, nodded, thanked him for the question, and moved on.<p>Talk about an imbalanced power dynamic.