If later selves have content in them that resembles the content in earlier selves, then by an argument made familiar by Bertrand Russell, this resemblance would seem to require grounding in a monadic or dyadic universal which is a multiply exemplifiable entity in each, perhaps the relation of resemblance itself.4 In order to be veridical, my present memory of a past experience must have
identical qualities instanced in it as were instanced in the past experience when it was present.