Marquis’ future-like-ours argument against the morality of abortion assumes animalism—a family of theories according to which we are animals. Such an assumption is theoretically useful for various reasons, e.g., because it provides the theoretical underpinning for a reply to the contraception-abstinence objection. However, the connection between the future-like-ours argument and one popular version of animalism can prove lethal to the former, or so I argue in this paper.

Don Marquis argues that abortion is prima facie seriously wrong because it deprives the foetus of a valuable future. This paper argues that there is no morally relevant difference between the relations that foetuses stand in to valuable futures and those that gametes stand in to such futures. Therefore, Marquis’ account implies that contraception is prima facie seriously wrong. My argument for this conclusion has a significant advantage over existing criticisms of Marquis based on controversial accounts of personal identity. It (...) shows that the problem with his account is not his view that identity across time is a matter of merely biological relations, but his investment of those relations with moral significance. This criticism has force no matter which account of personal identity is true. (shrink)

Which metaphysical theories are involved—whether presupposed or implied—in Marquis’ future-like-ours argument against abortion? Vogelstein has recently argued that the supporter of the FLO argument faces a problematic dilemma; in particular, Marquis, the main supporter of the argument, seems to have to either abandon diachronic universalism or acquiesce and declare that contraception is morally wrong. I argue that the premises of Marquis’ argument can be reasonably combined with a form of unrestricted composition and that the FLO argument is better viewed as (...) including animalism, i.e., the thesis that we are animals. (shrink)