 Three major contributions in the 1960s profoundly altered the face of compatibilism: the incompatibilists’ Consequence Argument, Frankfurt’s attack on the Principle of Alternative Possibilities (PAP), and Strawson’s focus upon the reactive attitudes. Every resultant compatibilist account in the contemporary literature is shaped in some way by at least one of these influences. This section will focus upon six of the most significant contemporary compatibilist positions. Those wishing to learn about cutting edge work can read the supplement on  Compatibilism: The State of the Art.