Quote:Anyone unconcsious would qualify to be killed by this standard. "but they may wake up and be rational". you might say. Then in that case allow the child to be born and hopefully he/she may meet your "standard" of rationality and your society would allow them to live.
Anyone unconscious might wake up today and be rational. That cannot be said for any fetus. That will happen only after a grueling development process of many years in the best of cases.