Well when the dandruff under my bed mixes with a little leaking rain water and a spark from my extension cord to form a Harry Potter Valdemort hallcrux clone emryo as under a white bench I’ll be sure to remember you and take such an argument more seriously. Me, I think a lancet teasing apart a zygote a little more indicative of a true intrinsic material possibility.
The lancet is involved in the cloning as well. No magic necessary, just a suitable environment manipulated with the appropriate tools in both cases.
Sorry you are mistaken here. Its a question of reason. So I have no real idea what you mean by this.
You keep requoting this out of context. I spoke of Faith and philosophy, and I did so in the context of a discussion about embryology.
So an adult is not “irreversibly individuated”, to use your terminology.
You seem to think any cell with full dna is somehow just as potential as a zygote to gain full rational humanity. Thats silly.
It’s a fact. That is what cloning is, the placement of an adult nucleus in an embryonic environment. The nucleus will then develop into a new individual, a belated twin of the adult from which the nucleus was drawn, based on its environment and the processes encoded in its DNA. This is rudimentary scientific understanding, taught in introductory cellular biology courses.
The technique is difficult, owing to the delicate nature of the primate ovum, but the principles are actually quite simple.
Furthermore, two adult individuals can become one and share their DNA. The recipient of a bone marrow transplant actually produces the cells of the donor. How is this different from the case of two zygotes merginging, the individual producing bodily cells from the genetic line of the zygote that merged with it?
How does the fact that two adults can merge into one body, sharing a hybrid bodily system, square with your assertion that this is a property of vegetative rather than rational souls? Your proposal doesn’t resolve any philosophical difficulties, it actually compounds them.
You are right to assert that the Church does not bind us to believing that the rational soul is present from conception, but you are wrong to assert that ancient notion of an ascending progression of ensoulment is a reasonable proposition given our current knowledge of the material world.
You might just as well assert that Catholics are free to believe in a flat Earth, or in heliocentrism. It isn’t a matter of heresy, it is a matter of natural reason.