If you continue to think in purely material terms, then I agree it must be deterministic or random.
It's got nothing at all to do with "material terms", Alan. Why do you keep misrepresenting the argument like that? It's a sort of lying.
But if you add the spiritual dimension we have deterministic, random or consciously driven.
This is logically impossible because any event, including a conscious choice, has to be determined or not-determined (or a combination) and not-determined
means random.
Look this isn't too hard. If we consider and event A, then either there are reasons for it or not. If there is absolutely no reason for it, then it has to be random. If we can identify reasons for it, say X, Y, and Z, then if X, Y, and Z could not have resulted in anything but A, then we have determinism. If X, Y and Z could of resulted in more than one outcome, say A, B, or C, and there are no other factors at all, then the choice between A, B, and C must have been random and we have randomness constrained by determined limits.
There really aren't any other options. Every choice you make is an event that had to come about somehow. Obviously our minds are incredibly complex and for all practical purposes, we choose what we want but that cannot change the fundamental logic.
What is a "free" choice anyway? Is it not a choice that is a true expression of who I am and my current circumstances? And isn't who I am, basically a product of my nature (initial state) and my life experience? I seriously don't see how that can happen
unless it's fundamentally deterministic.
Please notice that I didn't mention the physical universe at all.