ABSTRACT
We tend to think of ourselves as free and morally responsible agents. But what does acting freely (in the relevant sense) involve? According to the traditional view of freedom, it requires having the ability to select from a number of alternative possibilities that are open to us at different points in our lives. This idea is captured by the Principle of Alternative Possibilities :
PAP: An agent acts freely (in a way that is relevant to his moral responsibility) only if he could have done otherwise (or had the ability to do otherwise).
