Indiscernible Persons

In this article I discuss identity and indiscernibility for person-stages and persons. Identity through time is not an identity relation (it is a unity relation). Identity is carefully distinguished from persistence. Identity is timeless and necessary. Person-stages are carefully distinguished from persons. Theories of personal persistence are not theories of identity for persons. I deal not with the persistence of persons through time but with the timeless and necessary identity and indiscernibility of persons. I argue that it is possible that there are non-identical but indiscernible temporally whole persons. I discuss the biographies of persons and develop the type or token distinction for persons. Twins in symmetrical or eternally recurrent universes are examples of indiscernible persons. I discuss temporal and modal branching, and I end with survival for person-tokens and eternity for person-types.     

A Note on the Aesthetics of Mirror Reversal

According to Roy Sorensen [Philosophical Studies 100 (2000) 175–191] an object cannot differ aesthetically from its mirror image. On his view, mirror-reversing an object – changing its left/right orientation – cannot bring about any aesthetic change. However, in arguing for this thesis Sorensen assumes that aesthetic properties supervene on intrinsic properties alone. This is a highly controversial assumption and nothing is offered in its support. Moreover, a plausible weakening of the assumption does not improve the argument. Finally, Sorensen’s second argument is shown to be formally flawed. As a result, the case for the aesthetic irrelevancy of orientation seems still open.     

How Might I Have Been?

What would my life have been like if I had been born more intelligent? Or taller? Or a member of the opposite sex? Or a non‐biological being? It is plausible that some of these questions make sense, while others stretch the limits of sense making. In addressing questions of how I might have been, genetic essentialism is popular, but this article argues that genetic essentialism, and other versions of origin essentialism for organisms, must be rejected. It considers the prospects for counterpart theory and shows how counterpart theory can be used to illuminate volitional accounts of identity as proposed by Harry Frankfurt. This enables one to make sense of claims that, say, being gay, or Deaf, or Black, can be essential to someone's identity. The discussion is then extended to show how it can be made applicable to the transworld identity theorist who denies that individuals possess essential properties.