Hey Justin! What if you had a ring that made you invisible when you put it on? Would you use the ring to take the books you’ve been wanting from the kid’s section at the bookstore the next time we go to the mall? No. Why not? Because someone would know. In the summer of 1989, as I prepared for my first PhD-candidate solo flight in the classroom scheduled for the coming fall semester, I solicited advice from anyone and... Read more