I describe myself as a philosopher of science (with special interests in foundations of physics and philosophy of ecology), but my work overlaps several areas of philosophy, including metaphysics, epistemology, logic, and professional ethics. My dissertation was finished in 1991 at the University of Toronto, under the genial but exacting supervision of James Robert Brown.  I studied the conflict between quantum mechanics and relativity theory, a problem that continues to exercise me. 

My diverse research interests are unified by my desire to better understand the links between human nature and the larger and mysterious world in which we find ourselves. Philosophy, for me, is not a game to be played with words, but a passionate and disciplined attempt to see beneath the surface of things and events, and get the biggest possible picture of how and why we are here.

 — Most recent update, August 13, 2023.