From the point of view of semantics, errors must be accidents: if in the extension of "horse" there are no cows, then it cannot be required for the m… - Jerry Fodor

This monograph is about the current status of the program; not so much its evidential status (which I take to be, for the most part, an open question ) as what the program is and where it does, and doesn't, seem natural to try to apply it. Specifically I want to do the following things: (1) distinguish the general claim that there are psychological faculties from a particular version of that claim, which I shall call the modularity thesis; (2) enumerate some of the properties that modular cognitive systems are likely to exhibit in virtue of their modularity ; and (3) consider whether it is possible to formulate any plausible hypothesis about which mental processes are likely to be the modular ones. Toward the end of the discussion, I'll also try to do something by way of (4) disentangling the faculty jmodularity issues from what I'll call the thesis of Epistemic Boundedness: the idea that there are endogenously determined constraints on the kinds of problems that human beings can solve, hence on the kinds of things that we can know.

FACULTY PSYCHOLOGY is getting to be respectable again after centuries of hanging around with phrenologists and other dubious types. By I mean, roughly , the view that many fundamentally different kinds of psychological mechanisms must be postulated in order to explain the facts of mental life . Faculty psychology takes seriously the apparent heterogeneity of the mental and is impressed by such prima facie differences as between, say, sensation and perception, volition and cognition, learning and remembering, or language and thought.

If there is a community of computers living in my head, there had also better be somebody who is in charge; and, by God, it had better be me.