Determinism/free will is such a tough question, though. We're "inside" our free will, and it sure feels like we have free will, but then all this molecular science tells us we can predict stuff based on how stuff is now... including, theoretically, in the human brain.
I think my stance on the issue is blissful apathy. If I have free will, I'm gonna go use it. If I don't, I'm gonna think I'm using it anyway. My decisions will still be my decisions.