Irrationality
Tuesday, February 27th, 2007Over at the BBC, Evan Davis, the slightly-less-barking economics correspondent, has blogged about a book by Stuart Sutherland. He cites the example of the lost theatre ticket, which is an infuriating piece of narrow thinking, made more annoying by the fact that it tries to point out a “logical fallacy”. I was going to point out its many flaws, but the responses to the post on the BBC did that already.
The notion of irrational systems, if you can call them that, is interesting though. I quite like the idea of the unthinking general throwing more troops at something that isn’t working, which seems quite apt these days.
The question is, though, whether or not you can really understand irrationality rationally. Since to look at the causes of irrational behaviour, we would find it becomes rational by the mere fact that it has causes. I suppose that’s where the theatre ticket example falters. In trying to show the irrationality, it strips away the legitimate motivations for the decision to walk away, which make the decision very rational.









