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In philosophy and bioethics, potential (future) person (in plural, sometimes termed potential people) has been defined as an entity which is not currently a person but which is capable of developing into a person, given certain biologically and/or technically possible conditions.〔''Do Potential People Have Moral Rights?'' By Mary Anne Warren. Canadian Journal of Philosophy. Vol. 7, No. 2 (Jun., 1977), pp. 275-289 ()〕 The term unconceived has also been used in a similar sense, but does not necessarily include the capability of being conceived or developing into a person. ==Definitions== In 1977, Canadian Philosopher Mary Anne Warren discussed various definitions for ''potential people''. Most simply, a ''potential person'' could be defined as the currently existing genetic material that will constitute them, such as a sexually viable egg and sperm cell taken together, also when still being located in separate places.〔 Potential people may also be defined from reproductive capability, which also includes the presence of other necessary factors for becoming a person,〔 such as the availability of a womb to grow in, the will and means of parents to conceive, or even the care after birth to raise the individual into a complete sentient being. Thus the progression towards existence of a potential person usually lies mainly in the maturation of previous people to develop the will and ability to become potential parents. In this sense, destroying sperm cells, for instance, does not significantly reduce the number of potential persons, because, provided the will and other means to conceive a person remains the same, there is still the possibility to extract the genetic information from remaining sperm cells or, theoretically, even from somatic cells such as skin cells (by somatic cell nuclear transfer). Actually, in this sense, for a man that intends to conceive only two children, the billions on sperm cells he produces throughout his lifetime may, taken together, still only be regarded as a contributing factor to a maximum of two potential persons. If including the will to conceive as a necessary component of a potential person, the mere certain decision of a woman to not let an embryo grow inside her uterus may be regarded as sufficient to disqualify that embryo as a potential person, because a will that is strong enough would make that woman turn to even unsafe abortion, and a certain future abortion makes it certain that there won't be a necessary uterus for the embryo to grow inside to become a person. Strangely, in such a view, an act of a woman in changing her mind from abortion to proceeding with the pregnancy may be regarded as creating a potential person rather than saving the life of one, but other views may be applied once the beginning of actual human personhood has been reached. When taking this view to a larger scale, a population that is very intent on reproducing can be expected to constitute a larger number of potential persons than a population refusing to reproduce, all other factors being equal. When there is only one or a few factors absent to constitute a potential person, that entity may still be termed "a potential person except for...", but the ensuing arguments from this may differ. The people of the twenty-fifth century have been taken as an example of potential persons, because, although their particular gametes or embryos do not currently exist, there is reproductive capability of the currently living people and resources to make the future existence of those people possible.〔 The mere likelihood of future existence is usually regarded as sufficient to apply the term, as there is a risk that, for example, the people of the twenty-fifth century will never exist because of an event of human extinction.〔 The beginning of human personhood, where a potential person is instead regarded as a proper person, is a concept currently debated by religion and philosophy. However, there could theoretically be no beginning of ''potential'' human personhood because it is dependent on the reproductive capability of the previous generation, which, in turn, is dependent on the reproductive capability of the generation before that etc. etc. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Potential person」の詳細全文を読む スポンサード リンク
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