Was anyone signing up to be part of 20th century eugenics? Of course not. It wasn’t a voluntary process at all. It was state sponsored sterilization and murder.
If you don’t see the difference between that and embryo selection, you either haven’t thought deeply about it or you’re catholic.
If it’s the latter, I understand. One day we’ll have a way to do this without any excess embryos. But not yet.
Speaking as an actual Catholic, I do see that you are at least trying to avoid sterilization and murder (by not applying them to those that you recognize as persons). However, I also believe that you are failing.
If an unusually enlightened Nazi eugenicist said that destroying “life unworthy of life” was to be only a temporary endeavor, to be replaced at the first opportunity with nanotechnological bio-engineering to fix defects in those newly born with them, I expect you’d find it insufficient as justification or reassurance.
I suppose (though the above argument does not rely on it) that you want “Superbabies” to align artificial superintelligence and thus save the world, and that this accounts for your urgency, without which there would not be even an insufficient defense for what is proposed here (at least, not from a Catholic perspective).
I want to save the world too, but that does not justify treating human embryos (can you prove that they are not persons?) as mere means to that end. It is too easy to let messianic ambitions blind oneself to the requirements of humanity, as history can attest.
Finally, apologies for the late post—I understand if you do not reply. Also, apologies if this is written in an overly persuasive tone—I have tried at least to be honest. I pose one more question: Do you believe that you are different from historical case studies in overreach, because you have a better understanding of science, or of morality, or because you have a better cause (supposed by me to be aligning superintelligence), or because your actions really are different?
Thanks for your reply.
From the linked proposal:
I see the appeal of the idea that implantation is required for personhood—as far as I know, the embryo will not activate its developmental program beyond a certain point without it.
But this makes sense for the embryo—without implantation (again, as far as I know) the embryo cannot gain mass. Trying to develop further without implantation would be utterly futile.
I see the dependency of an infant as analogous, though admittedly less extreme. An infant without breast milk or a reasonable substitute will starve, and you will never see the later parts of its developmental program. It would be a mistake to see the infant as only potentially human, and I believe it would be a mistake with the embryo as well.
I believe the example of IVF to be inherently pathological, but I will use it here. An IVF embryo (correct me if I am wrong) has largely the same developmental trajectory whichever woman it is implanted into, provided that the pregnancy is successful. Nearly as much as identical twins normally resemble each other, the infants resulting from implanting an identical pair of embryos into different women would resemble each other. Hence implantation, though essential, does not determine identity in the way that which sperm cell fertilizes an egg determines identity. And I think that continuity of identity is a reasonable basis for assessing human personhood.