Moral and Epistemic Open-question Arguments

As advertised in its subtitle, Terence Cuneo’s rich new book, The Normative Web, puts forth an argument for moral realism. Moral realism, Cuneo argues, is on a par with epistemic realism—roughly, the view that there are genuine epistemic facts, facts such as that it is reasonable to believe that astrology is false. These two realist doctrines stand or fall together. But epistemic realism is true. Therefore, so is moral realism. This is an important and widely held reason for thinking that moral realism might be true, and it deserves the book-length treatment Cuneo has provided. Readers will profit from studying it. Cuneo puts his main argument roughly as follows: