Why I Was Never a Zygote

Southern Journal of Philosophy 41 (1):63-83 (2003)
Don Marquis has argued that abortion is immoral because it deprives the fetus of a "future like ours." But Marquis's argument fails by incorrectly assuming that a zygote and the late-term fetus with which it is physically continuous are numerically identical. In fact, the identity of a prebirth human (PBH) across gestation is indeterminate, such that it is determinately morally permissible to destroy an early-term PBH and determinately immoral to destroy a late-term PBH. Beginning at some indeterminate point during gestation and ending at some indeterminate point later in gestation, destroying a PBH is neither determinately morally permissible nor determinately immoral.
Keywords Marquis  abortion  vagueness
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DOI 10.1111/j.2041-6962.2003.tb00942.x
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References found in this work BETA
Judith Jarvis Thomson (1971). A Defense of Abortion. Philosophy and Public Affairs 1 (1):47-66.
Don Marquis (1989). Why Abortion is Immoral. Journal of Philosophy 86 (4):183-202.
Jonathan Glover (1990). Causing Death and Saving Lives. Monograph Collection (Matt - Pseudo).

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Don Marquis (1989). Why Abortion is Immoral. Journal of Philosophy 86 (4):183-202.
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