Game-playing is a good way to make touchy social decisions systematically. Suppose a group needs a leader. It could use a game with the following rules. Rule 1: each member of the group gets one vote in each round of vote-casting. Rule 2: whoever gets the least number of votes in each round of vote-casting is out of the game. Rule 3: the last remaining vote-getter is the group’s legitimate leader till the next vote. Thus the liberal game of voting. Suppose a group needs to decide which of several conflicting ideas is right. Again, a game. First, each school of thought places its opinion before
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