Competition vs. cooperation

Two boys were playing badminton, and because Andy played better than Bob, Andy won all the games. Bob threw down his racket, sat on a tree stump, and said, “I won’t play anymore.” So Andy suggested a different game. “Bob, let’s see how long we can keep the bird going between us and count how many times it goes back and forth without falling. Do you think we could make a score of ten or twenty?” Bob thought it a grand idea, and so the two boys resumed playing a cooperative game.

From his office window, the German psychologist, Max Wertheimer, watched as Andy and Bob worked out their discrepancy...