Regarding to the original post: I read and saw documentaries about the "block universe" a concept for time and free will.
Humans usually thought about time as if it was a stream onto which everything was floating, from past > present > future, "behind" was the past, "ahead" the future, at the moment the present, that has already gone (Do you know this Documentary with Brian Greene? He nicely visualized everything.). As my understanding, the block universe theory (?) is today -- correct me, if I'm wrong -- the standard way of thinking about time and also in a way of free will, that is, everything exists at the same time; past, present and future (like a block), that would mean there is no free will, as we understand it with our linearly-time-perceiving-human-brains, -- free will in our terms of having the possibility to freely without restrictions choose from an infinite set of actions A = {a_1, a_2, a_3, ...} at certain time t e R (real numbers). One action of A could be called a_ctb.
Looking at the weird microscopic level, where quantum physics usually comes into play, maybe also in the human brain, if these processes can even occur their, (do you know about these birds, that basically orient themselves in space with their "quantum compasses", that have a sense for the North and South Pole) a decision or at least an illusion of a decision is made, that causes one to select action a_ctb from set A at time t_ctb from R. Everything is determined since the "beginning" (sorry for my all time vagueness) of the universe. Which would mean, that if we didn't got brains, that perceive time as linear, we would basically see our whole life from start to end (at the same time (?)) in front of us. So free will and the decision to take a certain action (including the action to ctb) are basically illusions made by our brains, that is "best" adapted for living on a planet like earth. I'm not sure if there is any deeper understanding for scientists at present; certainly not for me though, sorry, for my limited understanding of everything, it probably just sounds like meaningless ramble ... typing and thinking without sleep is exhausting ...