The only things that appear to be under our control is what we say and do (or perhaps choose, as 'saying' is a form of 'doing', e.g. in a courtroom) in any given circumstance. Since that too can be reliably predicted for most people, e.g. I know how my daughter will act if I leave her alone with candy in the room... or how an ethical officer of the law would act if he discovered a million in cash buried in an offender's backyard under the dog house.... which are voluntary acts, but almost always predictable, then the question isn't really what is under "our" control, but more like, who is really running the show? Is cause/effect real, is libertarian free will real? I'd say so. What I have trouble believing is that free will is absolute, meaning, that one does not necessarily do X just because he can do X, and almost always does Y instead (e.g. what is right versus what is perceived as a possible choice, which may or may not be 'right' in the given context), Y being the almost always predictable choice of how a person would react in a given set of circumstances.