 In pursuing this aim, proponents of teleological theories usually adopt a physicalist framework, and try to formulate a theory of content that is naturalistic, or in other words a theory that is consistent with the natural sciences and their presumed working assumption that neither intentionality nor consciousness is ontologically fundamental. Most teleological theories thus attempt to show how intentionality, at its most fundamental, can be part of the natural world, by showing how it can be understood as deriving from other (non-mental) natural things.