I appreciate your different perspective on the matter. One quibble: > either a thing is zero-sum or its not. A game can have both a zero sum component and an

I appreciate your different perspective on the matter. One quibble: > either a thing is zero-sum or its not. A game can have both a zero sum component and an unbounded component. Only one person can win the presidency, but everyone who runs can get a reputation boost. Learning how to shoot free throws might improve your saxophone playing, but 8 hours a day in the practice room could take away from your knowledge of literature.