Gideon Rosen is Stuart Professor of Philosophy at Princeton University. He is the author (with John P. Burgess) of A Subject With No Object (1997) and numerous essays in metaphysics, moral philosophy, and the philosophy of mathematics.

Alex Byrne is Professor of Philosophy at the Massachusetts Institute of Technology. He is co-editor, with David R. Hilbert, of Readings on Color, vols. 1 and 2 (1997) and, with Heather Logue, Disjunctivism (2008). He is currently completing a book on self-knowledge.

Joshua Cohen is a faculty member at Apple University, and has taught at MIT (1977-2006) and Stanford (2006-2014). He is the author, co-author, or editor of more than 25 books. His most recent books are Philosophy, Politics, Democracy (2009); The Arc of the Moral Universe (2011); and Rousseau: A Free Community of Equals (2012). Since 1991, Cohen has been editor of Boston Review.