Free Will
In a post at Meteuphoric, Katja Grace explains why the notion of (non-deterministic) free will is just incoherent nonsense. I wholly concur.
I’d like to further point out that her argument does not depend on a materialist theory of mind. Buying into dualism doesn’t help make free will the least bit more tenable. The question of whether our minds are made solely of organic chemicals or made of something else (the “soul”) in addition to organic chemicals is irrelevant. In either case, a person’s actions are determined by the state of their mind.

The existence of the neural “readiness potential” suggests that conscious free will can only occur after a decision is taken! Perhaps free will is really about training ourselves to have the right automatic response. (see Conscious free will).