Machine Free Will: Is Free Will a Necessary Ingredient of Machine Consciousness?

Sooner or later, machine consciousness will have to address the elusive notion of free will either to dismiss it or to produce a machine implementation. It is unclear whether freedom and consciousness are independent aspects of the human mind or by-product of the same underlying structure. Here, the relevant literature is reviewed focusing on the connection between determinism and freedom-usually explored by compatibilists. Eventually, a tentative model for machine free will is outlined.