Terry Horgan

Folk psychological realism is the view that folk psychology is true and that people really do have propositional attitudes, whereas anti-realism is the view that folk psychology is false and people really do not have propositional attitudes. We argue that anti-realism is not worthy of acceptance and that realism is eminently worthy of acceptance. However, it is plainly epistemically possible to favor either of two forms of folk realism: scientific or non-scientific. We argue that non-scientific realism, while perhaps unpopular among philosophers of mind, is a distinct form of realism from scientific realism, and that it is not yet knowable whether scientific or non-scientific realism is true. We also outline how adopting realism, but remaining neutral between scientific and non-scientific realism, offers fresh insights into such topics as instrumentalism, supervenience, the language of thought hypothesis, and elimin-ativism.

J. L. Mackie argued that if there were objective moral properties or facts, then the supervenience relation linking the nonmoral to the moral would be metaphysically queer. Moral realists reply that objective supervenience relations are ubiquitous according to contemporary versions of metaphysical naturalism and, hence, that there is nothing especially queer about moral supervenience. In this paper we revive Mackie's challenge to moral realism. We argue: (i) that objective supervenience relations of any kind, moral or otherwise, should be explainable rather than sui generis; (ii) that this explanatory burden can be successfully met vis-à-vis the supervenience of the mental upon the physical, and in other related cases; and (iii) that the burden cannot be met for (putative) objective moral supervenience relations.

Josep Corbi raises several worries about the metaethical position that Mark Timmons and I have articulated and defended, which we call “nondescriptivist cognitivism.â€â€¦ His remarks prompt some points of clarification…. Timmons and I characterize descriptive content as “way-the-world-might-be†content. We maintain that “base case†beliefs—roughly, those non-evaluative and evaluative beliefs whose contents have the simplest kinds of logical form—are of two types: a non-evaluative belief is an is-commitment with respect to a core descriptive content, and an evaluative belief is an ought-commitment with respect to a core descriptive content. Core descriptive contents are those descriptive contents expressible by (nonevaluative) atomic sentences. Concerning the notion of a core descriptive content, Corbi says.