 A common way of answering these questions is to say that free will is incompatible with causal determinism because determinism precludes us from having the ability to do otherwise than we do, and this ability is needed to have free will (Purinton 1999). Human beings are aggregates of atoms, and our decisions are caused by the motions of the atoms that make up our minds. If the atoms that make us up moved in accordance with deterministic laws—if we were subject to “internal necessity”—then we would be unable to act otherwise than how we do act. But because the atoms in our mind can swerve, then it is possible for me to do otherwise than I do. There is a range of possible outcomes for any action I take, depending on whether, when, and how many atoms in my mind swerve. And so, I have free will and can be rightly held responsible for my actions.