I only used the half genes/ half environment theory based upon what once was (at least it was some years back) a prevailing sentiment. This school of thought was based upon studies of separated identical twins, which ruled out genetic variability (and therefore the differences in the two must be attributed to environment). Seemed reasonable to me.
Regardless, with everything we do know there is so much that we still dont know. Philosophical/ ethical issues aside, the science just isnt quite there yet. Still, like you I can see a future where babies are custom built to order like a car or computer (blue eyes, attached earlobes, blond hair, full lips, small nose, tall height, fair skin, mesomorph, etc.), and all done in a lab with convenient home delivery service (Huxley would be proud!). Not what I really want, but, I think there would be a strong demand for such a thing.
