BRIAN P. MCLAUGHLIN is Distinguished Professor of Philosophy and Cognitive Science at Rutgers University. He has published numerous papers in fields including philosophy of mind, philosophy of psychology, metaphysics, epistemology, and philosophical logic. He co-authored (with Vann McGee) Terrestrial Logic: Formal Semantics Brought Down to Earth (forthcoming, Oxford). JONATHAN COHEN is Professor of Philosophy at the University of California, San Diego. He has published widely in philosophy of perception, philosophy of language, philosophy of mind, philosophy of science, and aesthetics. He is the author of The Red and the Real: An Essay on Color Ontology.