Two ways to Think I find it enlightening to think about the world using dichotomy. Often you can think about things as if they neatly sorted into two groups. East or west? Up or down? Left or right? With people I think there are two kinds: those who believe there are two kinds of people and those who don't! Sorry, for the bad joke! Of course, I know that people are very complex and do not sort themselves out neatly. So dichotomy is a useful tool to understand but not a perfect model. Sunk Cost or Joy? When you look…