The natural sciences have logically demonstrated that everything we know and experience is a product of the material functionality of our brains. I would say that most believers in the concept of a soul here in the US would consider the soul to be a reflection of the material process of consciousness that is subject to analysis by the natural sciences.If the soul is beyond the purview of the natural sciences, then no, it wouldn't be logical .... actually it would be the other way around, namely the soul would be essential to the existence of the (functioning) brain.
Driven by an intelligence? Why not just inherently able to express intelligence on its own? Why the need for an isolated agency to drive it?Nature does it better, which is just another hint that it is driven by an intelligence.
Considering that the experience of ourselves and the reality beyond are a product of our brains, wouldn’t you expect that the presence of a soul would be in some way linked to the functionality of our brains? And if the functionality of the brain was not present, woulnd’t you expect an associated absence of the soul? This would be the case when brain activity ceases at death, or when brain activity is absent in a developing fetus in the womb.I don’t know the answer to that. Wish I could tell you but I can’t.