(For previous posts in this series, see here.)
It is time to examine the consequences if we are forced to conclude, as seems likely, that there is no such thing as free will and that our actions are determined by the unconscious neural activity of a physical brain that was itself the creation of the genes, environment, and stochastic processes that make up our personal and evolutionary history.
The most obvious implications lie in the areas of crime and punishment and personal morality. Does the absence of free will mean that we are condemned to an amoral anarchy, in which people can claim that they are not responsible for any and every action because they did not freely choose to do so, and thus should bear no consequences?
Actually, no. In chapter 10 The Fear of Determinism in his book The Blank State: The Modern Denial of Human Nature, Steven Pinker argues that we need not perpetuate the fiction that there is free will when there is none simply because of fears of such an outcome. Apart from the fact that it is almost always better to base our policies on what is true than on illusions, the lack of free will can actually be more effective than having it because it enables us to see more clearly when and how to assign responsibility for actions.