Beware professionals professing life isn't self evident time genetics absolutely eternally separates any reproduction ever existed in this atmosphere as within the generation gap they lived or alive this rotation of the planet. No exceptions or exemptions forward as there weren't any so far except in theory or theology suggesting genetics cannot be eternally separating everyone alive today.
8 billion people won't accept it(genetic outcomes daily) does, so they have to be accurate about it factually since actual results don't matter defending reasonable doubts, Just ask them? Any alternate reality will do.