Quote:
Originally posted by dar512
Ah. Therein lies the story. I have the feeling that many people choose childbirth as the threshold because it's easy, observable, and allows them to have closure on the issue. I don't buy it.
Carl Sagan (RIP) had an article on this subject based on the development of the fetus and so forth. It was a while ago, but I think he decided that the beginning of the second trimester was the magic crossover spot. I don't know about that, but I do think birth is too late.
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He probably based it on the fact that that is, approximately, when the fetus runs the risk of surviving outside of the mother if removed early.