 Finally, in  section 3.5,  we turn to objectualism, and the issue whether there might be a successful form of reductive normative naturalism. This kind of theory would provide an ambitious answer to our organizing question. It would combine a realist, robust view of the property of being normative with the objectualist view that this property is instantiated by states of affairs and first-order ethical properties. It then contends that it is possible to provide a naturalistic constitutive explanation of the property (or properties) of being normative.