Poor DS16. He often comes home from school so excited about a calc or physics or comp sci concept a few chapters ahead that he figured out himself, then proved (they are all AP classes) Or today the homework he found from the class above his, that he proceeded to do. He can't wait to tell me all about it. I listen, I ask questions, I really do get interested, but he can tell: I just don't quiiiiiite get it the same way he does. So he switches into another gear...like to tell me the history of the Lucky Charms marshmallow bits ("marbits" is the technical term). Did you know there have been 133 different marbits? Yum!