This is most interesting, Graham. There is a lot in this that is new, novel and quite strange to me, as you can imagine. I am finding it is one thing to agree on what is not true in terms of physicalism, scientism, atheism and all that, and another to dive deeper into the actual worldviews and belief systems. Obviously there is quite a difference shown here between yours and mine. I am committed to keeping an open mind, but i certainly do not feel the need for a far more esoteric interpretation of the prodigal son. The intention of the parable seems relatively clear and straightforward and the interpretation you offer strikes me as a bit forced. But that is just my impression. But, I'm keeping an open mind as far as possible and continuing to learn from you.

By the way, the philosopher-apologist William Lane Craig has a new book out on the historical Adam. You might find that interesting. Given his defense of what you would consider conservative or traditional interpretations of the Bible, and his support from within traditional Christianity, he seems to go quite far out on a limb with this.