While I wrote my master thesis I became a fuzzy logic user.addict.admirer. In my head fuzzy logic is a runner up for a lot of different tasks. If you do not know anything about fuzzy logic I suppose the website of Lotfi A. Zadeh, the man who introduced fuzzy logic, is a good place to start.
Point is that if you are already interested in fuzzy logic, some researchers at MIT got news for you and me.