In high school I took pride in my ability to play chess. I joined the chess club, and during lunch hour I could be found sitting at a table with other nerds, poring over books with titles like Classic King Pawn Openings. I studied techniques, won most of my matches, and put the game aside for 20 years. Then I met a truly fine chess player who had been perfecting his skills long since high school, and I learned what it is like to play against a master. Although I had complete freedom to make any move I wished, none of…