Sydney Shoemaker argues that the functionalist theory of mind entails a
psychological-continuity view of personal identity, as well as providing a defense of that view
against a crucial objection. I show that his view has surprising consequences, e.g. that no
organism could have mental properties and that a thing's mental properties fail to supervene
even weakly on its microstructure and surroundings. I then argue that the view founders on
"fission" cases and rules out our being material things. Functionalism tells us little if anything
about personal identity
