Behavioral and Brain Sciences

Open Peer Commentary

Moral realism and cross-cultural normative diversity

Edouard Machery a1, Daniel Kelly a2 and Stephen P. Stich a3
a1 Department of History and Philosophy of Science, University of Pittsburgh, Pittsburgh, PA 15260
a2 Department of Philosophy, Rutgers University, New Brunswick, NJ 08901-2882
a3 Department of Philosophy and Center for Cognitive Science, Rutgers University, New Brunswick, NJ 08901-2882


We discuss the implications of the findings reported in the target article for moral theory, and argue that they represent a clear and genuine case of fundamental moral disagreement. As such, the findings support a moderate form of moral anti-realism – the position that, for some moral issues, there is no fact of the matter about what is right and wrong.