zsdersw
Lifer
- Oct 29, 2003
- 10,505
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The problem with "viability" is that it's not now, and will continue not to be, a fixed point in time, as medical science advances. I expect that sometime in the near future, we'll reach the point that a mother won't be needed at all - we'll be able to grow a fetus in a completely artificial womb.
Nowhere is it written that "viability" must be defined a certain way and never changed. When/if we reach the point you suggest, other definitions on when life begins will become as obvious as viability is now.