Turning the Trolley


  • What follows is a revised version of the keynote address I gave at the USC/UCLA Philosophy Graduate Student Conference on February 9, 2008. An earlier version was presented at a conference on issues in philosophy and psychology, held at MIT on May 23, 2007. I am indebted to the participants on both occasions for comments and criticism. I owe thanks also to the Editors of Philosophy & Public Affairs for helpful suggestions.