 Second, the organism would not merely think in some way or other, but would presumably be psychologically indistinguishable from you. That would make it a person, if being a person amounts to having certain mental or behavioral properties (as on Locke’s definition)—a second person in addition to you. In that case it cannot be true that all people (or even all human people) persist by virtue of psychological continuity. Some—those that are organisms—would have brute-physical persistence conditions.