Thanks for the relevant article! It's a good one and I'll be reading it today and definitely keeping it.
This is something new to me. It makes sense to me, as a materialist, but I was unaware of any Christian thought that argued for it. There has always been a problem as to when the soul 'evolved.' It seems nonsensical that it evolved in step with us from pre human to human (if a soul is fully evolved now, what was it like when it wasn't?). And equally nonsensical that at some point a human was born witth a soul while his mother didn't have one.
I fully understand your sensibility on this issue. The whole notion about a soul does seem somewhat extraneous when viewed from a materialist position. And so, suprisingly I know, there are some Christian philosophers/thinkers who go in for a materialist angle.
Personally, I take the notion of a soul as a derivative concept, one that simply rides along with the Jewish/Christian theology. If it does exist, then I recognize that the writers of the biblical documents don't give us enough info by which to undrestand its ontology. Attempts to remedy this by then subscribing to Plato or the like aren't going to ameliorate the epistemic and ontological shortfall we encounter in this regard. Like a number of things in the Bible, we are presented with an undemonstrable concept, one that remains virtually indiscernible on the typical human level of empirical verification. This makes it almost feel like an alien piece of furniture in our otherwise Modern house.
Personally, I don't attempt to integrate Christian Theology with Evolution. I don't think the soul "evolved," and I keep each of these paradigms separate and in their own spheres, not only because there have been folks like Stephen Jay Gould who suggests we do so out of some respect for spheres of thought, but simply, out of philosophical discernment, I don't think they are blendable being that one is ancient and different from a modern one, so I don't blend them. This plays out in that when I bump into biblical concepts such as the "human soul," I assess it as an existential potentiality to perhaps be realized in the future (assuming Christianity is true). All the while, I firmly realize the soul isn't something that is quantifiable, substantively qualifiable or otherwise apprehendable in the here and now apart from ancient modes of thought. It's an auxiliary piece of theology that will have to be shown to me when, or after, I die.
Materialism seems the obvious answer and if you need a soul to continue after death then God gives you one at the point of death. You solve both problems at the same time.
I don't know that I'd say that Materialism is the obvious answer. As an Existentialist, I'd rather say that it seems to be the more immediately perceived/felt position to take where my own possible "soul" is being considered (whatever it is). I think my view on this is one that results mainly by default from our present human position, informed as it is by our Sciences and our Philosophies (i.e. my analogy here is to simultaneously stand with the shoe of someone like Carl Sagan on one foot, but with the shoe of a Pascal or Wittgenstein on the other). Then, there's also taking into consideration a few of the things that someone like Patrick McNamara might also suggest about the overall conception of religioun on the whole:
Closer To Truth