 Both kinds of theories are externalist: according to them, what makes it the case that a subject’s mental state has the content it does is in part facts about the subject’s environment. Any objections to externalism about mental content are thus also objections to these theories of intentionality. For instance, suppose there was a creature, Swampman, who suddenly popped into existence due to random conglomeration of particles, and happened to be an intrinsic molecular duplicate of, say, Jerry Fodor. Pure externalist theories (that is, theories that hold that the only way mental states can have content is by standing in the right external relations to the subject’s environment) are committed to denying that Swampman would have any contentful mental states. Some philosophers have found this commitment counterintuitive. For further discussion of this objection and others, see the entry on  external theories of mental content.