ABSTRACT
This chapter contains a very brief introduction to rationality, followed by a thought experiment. It is followed by a short discussion and then a series of questions. Aristotle described what it is to be human as being a kind of 'rational animal'. People seem to be rational creatures. They perform actions for reasons. There have been studies that have been presented as raising a challenge to the claim that people are rational. This is presented as a thought experiment with a boy named Max, who is asked to take part in a trail. The questions are intended to get the philosophy students thinking about the problems. They have used these kinds of questions in seminars as the questions set for seminars, so they also think that they can be used to spark conversation and discussion. The chapter also gives a cursory sketch of some of the ways in which philosophers have responded to the thought experiment.
