 There will indeed be cases in which only the agent can say whether she is pondering, imagining, dreaming, letting her mind wander, calculating, solving, planning, or rehearsing. But the sort of privacy in which only she can say whether she was doing any of these or other particular things is not the sort of privacy that gives rise to philosophical conundrums like the problem of other minds and the problem of necessarily private languages. On the contrary, the ability to describe one’s dreams (as well as one’s sensations) presupposes a language whose terms have established and public criteria for their correct use.