Areas of interest include metaphysics, philosophy of mind, epistemology, and the philosophy of mathematics, logic, and language. Affiliated with Program in Cognitive Science and Artificial Intelligence. Writing a book on problems of truth, Platonism and pragmatism. Primary interest is ethical theory and its applications to difficult practical problems. Also value theory, practical reasoning, social and political philosophy, bioethics, ancient Greek philosophy, and philosophy of art.
Chief interests lie in the philosophy of mind, the philosophy of science and cognitive science.
Affiliated also with the Cognitive Science Group at the Beckman Institute. Teaches courses also in the philosophy of biology and epistemology. Currently working on a long-term project on the nature of individuals in science.