Hud Hudson

Three Dimensionalists and Four Dimensionalists are engaged in a debate on the topics of persistence and mereology. In this paper, I explore implications of Four Dimensionalism for the formulation of the criterion of personhood and on the question of which individuals satisfy that criterion. In my discussion I argue that the Four Dimensionalist has reason to identify a human person with a proper part of a human organism, and that the Four Dimensionalist has reason to believe that if there is something morally wrong with human abortion or infanticide, it cannot be grounded in claims about the moral status of persons

In a very influential paper, Abortion, Joel Feinberg offers a series of arguments against four popular proposals for the criterion of moral personhood and defends a fifth proposal. In this paper, I demonstrate that two widely‐accepted arguments employed by Feinberg against the modified species criterion and the strict potentiality criterion, respectively, are unsound. Moreover, I argue that there is a general feature of his inquiry into the criteria for moral personhood which undermines his efforts to argue convincingly either in favour of his own candidate or against other candidates.

Despite its first page this paper is not yet another piece on Kant! Rather, the paper is a contribution to the literature on incongruent counterparts. Specifically, it concerns the question of whether we can construct a temporal version of the puzzle of incongruent counterparts---a question which (as far as I can tell) has been thoroughly neglected. I maintain that we can construct such a version of the puzzle, and that this temporal variant on the phenomenon has something to teach us about popular arguments for the possibility (or even actuality) of four-dimensional space.