 Dupré (1993) promiscuous realism claims that there are countless ways of taxonomizing the world into kinds. The structure of the world is vastly complex and can be categorized in many different cross-cutting ways, according to the different theoretical interests we happen to be pursuing. Nevertheless, Dupré insists that his view is not conventionalist, but rather that he is committed to naturalism and realism about natural kinds. He accepts that there are properties that members of natural kinds have in common, but denies that these are intrinsic properties of kinds (see Criterion 1 above). He also denies that there is a hierarchical structure of natural kinds in the world (see Criterion 5 above) and that kinds are categorically distinct (see Criterion 6 above).