Cyracuz wrote:To me it is all very simple. A person begins when the umbilical cord is severed. Then the infant is no longer a part of the mother, and relies on it's own lungs, it's own mouth and belly.
Not so simple since you have given four different criteria:
a) no umbilical cord connecting
b) relies on it's own lungs
c) relies on it's own mouth
d) relies on it's own belly
What if it doesn't meet all four?
What if a newborn preemie needs a feeding tube or IV for nourishment, and a respirator?
He may fail b) and c) and possibly d).
Is he not a living human being?
Is it enough that he has no umbilical cord connecting him to a mother? Is he a human being then?
If simply being detached from a woman ( i.e. no umbilical cord ) IS enough, then is a fertilized egg growing in the lab, which is NOT implanted in a woman, considered a living human being? Why or why not?