[jas3]

Unless you think a Doctor implanting an embryo in the uterine wall is a supernatural process you are once again digging ever deeper.

Implanting an embryo is neither "natural" nor "supernatural", and those words are not antonyms.

[jwalsh07]

Implanting an embryo is neither "natural" nor "supernatural", and those words are not antonyms.

???? What's the point? The argument you and bambam are making is a stupid one. Open heart surgery isn't a "natural" process in your book either. And yet the patient on entry to the OR is both viable and in need of a heart transplant to retain that viability. Is the patient not viable or the victim of artificial, unnatural or supernatural practices?