Not trolling, just trying to find the reasoning behind your position.

So is “the individual” the only thing in the universe for which antecedent conditions don’t exert a causal effect — at least, not completely — or are there other things, too? What about non-human minds, like animals, also first movers?

And, do you have a theory of how the individual is exempt from everything else we observe, which seems to be part of the causal chain?

This Includes the parts of the human brain that we have observed, for instance with fMRI. The studies where researchers looking at brain imaging know the actions the subject was about to take, a second or two before the subjects were aware of it themselves, would need some explanation of how their choices were actually free of prior causes, yet still predictable.