In my opinion, one of the reasons that we argue around determinism is that it seems to have some disturbing implications with regards to fatalism: if determinism is true, then everything is predetermined since the origin of the universe. That is to say that given enough information about the state of the original universe, it is possible to 'calculate' what is going to happen thereafter, because determinism means everything is strictly causally determined by its prior events. And because of this, in a strictly deterministic universe, there is only one 'fate' for anyone, and the disturbing implication that seems to follow is that since there is one fate for me, there is not much point for me make any decisions, because I'm not really making decisions, as everything I will do, or want, is already determined.
How might a compatibilist, who thinks that humans are still capable of free will and are capable of making decisions, refute the above argument for fatalism?
p.s.: this is a follow-up from the question...