Abstract

In this book, Dennett determines just how far we can push the idea that mental states are distinguished by intentionality, that is, by the fact that they have content in virtue of being about, or directed towards, the world at large. Intentionality is characteristic of such states as belief and desire, since all belief is belief of something or that something be the case. In contrast to the physical stance and the design stance, the intentional stance is the predictive attitude or strategy philosophers or cognitive scientists adopt when, in order to explain the behavior of a sufficiently complex system, they treat it as if it had beliefs and desires and acted rationally on its beliefs to satisfy its desires. Dennett insists that this stance is essentially a heuristic that informs the formation of scientific theories which are void of mental state terms. For Dennett, the interesting question, whether we are considering mechanical systems, computer systems, enzymes, microorganisms, vervet monkeys, humans, or martians, is just how far should we go in employing the intentional strategy? At what point must we abandon a strict realism about beliefs, desires, and the other concepts of folk psychology?