When I was in high school, a teacher I deeply respected sat me down and told me I was like a duck. Not sure where he was going with it at first, I twitched uncomfortably but kept listening. A duck, he explained, can walk, swim, and fly. It doesn't out-swim a shark, out-run a cheetah, or out-fly an eagle, but it does all three competently. It survives, adapts, and gets wherever it needs to go because it isn't trapped in a single element. It was a complement. For a long time,