Function theorists routinely speculate that a viable function theory will be equally applicable to biological traits and artifacts. However, artifact function has received only the most cursory scrutiny in its own right. Closer scrutiny reveals that only a pluralist theory comprising two distinct notions of function--proper function and system function--will serve as an adequate general theory. The first section describes these two notions of function. The second section shows why both notions are necessary, by showing that attempts to do away (...) with one of them fail. This demonstration draws on examples from the artifactual realm to motivate major points of the argument. The third section is an outline of artifact function. It confirms the conclusions of the second section, and also begins the task of describing some of the special features of artifact function needing accommodation within the general theory. (shrink)

To approach the issue of teleology, I will focus on what I regard as the fundamental form of teleological causation: goal-directed action. What is “goal-directed action,” and what kinds of entities act goal-directedly? Consider some representative processes.

A collection of essays argues that philosophy is an essential element of human life--a force that shapes human character and national culture and destiny--and offers the rational philosophy of Objectivism as an alternative.