I couldn’t disagree more; the issue is a matter of empirical knowledge, with metaphysical implications. It is an undisputable fact of biology that a new human being, with unique genetic endowment, is created at the moment of conception.
How does that scientifically equate to life? Every body I ever saw in a casket had a "unique genetic endowment" but there was no life there. Show me the objective, empirical, scientific basis for your definition of life as unique DNA.
The bigger point here is that Newt is actually dissecting the issue. His critical analysis actually impresses me and frankly I would have to agree with him. You can have a zygote with all of its unique human traits, but until implantation occurs, the chances of that zygote maturing into a human being is about 20-30% if I am not mistaken. Once implanted, there is greater than a 50% chance of maturation into a human being. While this has no implication on the abortion issue(nobody gets an abortion before implantation), it does show the man actually is a critical thinker.
Well said.