AB,
Science has made marvellous progress in discovering how the material bits of the body all work together…
So far, so good…
…,but if it is only material and nothing else, there can be no origin for any spontaneous thought or action or desire, since it will all be pre determined by chains of materially induced events.
Depends what you mean by “spontaneous”, but essentially yes. I wonder if perhaps you’re finally getting it?
No matter how complex the network of material reactions, there can be no defining source.
Well, the “defining source” would be whatever the first cause and effect event was I suppose but if you actually mean here something like, “defining source
outside of the chain of cause and effect” then that’s right. Keep going…
Your conscious awareness has no control. Nothing has control apart from the uncontrollable deterministic forces of nature.
Finally you’re making sense!
So where is the "you" in all this?
That
is “you”. “Free” will is just what processes that are actually deterministic
feel like.
Are you just an accidental blob of material being driven by the rest of the continuum of matter in this universe?
That “blob of material” mischaracterises the position, but essentially yes.
If you can offer any answer this you are demonstrating that there is a "you" in there somewhere controlling the shots.
Aw, and then it all fell apart with a
non sequitur. Shame because you were doing quite well until then. The “you” that feels like it’s “calling the shots” doesn’t mean that it actually is doing that in the sense of somehow being outside the chain of cause and effect, which is itself an incoherent conjecture in any case.