 One could question Jackson’s assumption that necessarily co-extensive properties are the same, but we cannot here pursue that issue. What analytical naturalism offers so far is an analysis of moral terms and an argument that moral properties are natural, or descriptive. But exactly which descriptive properties are identical to the moral properties? Analytic naturalism does not tell us this now. It claims that once we have attained a mature folk morality, we will be able to determine which natural properties fulfill (closely enough) the roles of the various moral  properties.[7]