Azim Shariff and Kathleen Vohs recently had their article, “What Happens to a Society That Does Not Believe in Free Will”, published in Scientific American. This article considers the causal impact of a disbelief in free will with a specific focus on law and ethics.
Philosophers have long addressed the general problem of free will as well as the specific connection between free will and ethics. Not surprisingly, studies conducted to determine the impact of disbelief in free will have the results that philosophers have long predicted.
One impact is that when people have doubts about free will they tend to have less support for retributive punishment. Retributive punishment, as the name indicates, is punishment aimed at making a person suffer for her misdeeds. Doubt in free will did not negatively impact a person’s support for punishment aimed at deterrence or rehabilitation.
While the authors do consider one reason for this, namely that those who doubt free will would regard wrongdoers as analogous to harmful natural phenomenon that need to dealt with rather than subject to vengeance, this view also matches a common view about moral accountability. To be specific, moral (and legal) accountability is generally proportional to the control a person has over events. To use a concrete example, consider the difference between these two cases. In the first case, Sally is driving well above the speed limit and is busy texting and sipping her latte. She doesn’t see the crossing guard frantically waving his sign and runs over the children in the cross walk. In case two, Jane is driving the speed limit and children suddenly run directly in front of her car. She brakes and swerves immediately, but she hits the children. Intuitively, Sally has acted in a way that was morally wrong—she should have been going the speed limit and she should have been paying attention. Jane, though she hit the children, did not act wrongly—she could not have avoided the children and hence is not morally responsible.
For those who doubt free will, every case is like Jane’s case: for the determinist, every action is determined and a person could not have chosen to do other than she did. On this view, while Jane’s accident seems unavoidable, so was Sally’s accident: Sally could not have done other than she did. As such, Sally is no more morally accountable than Jane. For someone who believes this, inflicting retributive punishment on Sally would be no more reasonable than seeking vengeance against Jane.
However, it would seem to make sense to punish Sally to deter others and to rehabilitate Sally so she will drive the speed limit and pay attention in the future. Of course, if these is no free will, then we would not chose to punish Sally, she would not chose to behave better and people would not decide to learn from her lesson. Events would happen as determined—she would be punished or not. She would do it again or not. Other people would do the same thing or not. Naturally enough, to speak of what we should decide to do in regards to punishments would seem to assume that we can chose—that is, that we have some degree of free will.
A second impact that Shariff and Vohs noted was that a person who doubts free will tends to behave worse than a person who does not have such a skeptical view. One specific area in which behavior worsens is that such skepticism seems to incline people to be more willing to harm others. Another specific area is that such skepticism also inclines others to lie or cheat. In general, the impact seems to be that the skepticism reduces a person’s willingness (or capacity) to resist impulsive reactions in favor of greater restraint and better behavior.
Once again, this certainly makes sense. Going back to the examples of Sally and Jane, Sally (unless she is a moral monster) would most likely feel remorse and guilt for hurting the children. Jane, though she would surely feel badly, would not feel moral guilt. This would certainly be reasonable: a person who hurts others should feel guilt if she could have done otherwise but should not feel moral guilt if she could not have done otherwise (although she certainly should feel sympathy). If someone doubts free will, then she will regard her own actions as being out of her control: she is not choosing to lie, or cheat or hurt others—these events are just happening. People might be hurt, but this is like a tree falling on them—it just happens. Interestingly, these studies show that people are consistent in applying the implications of their skepticism in regards to moral (and legal) accountability.
One rather important point is to consider what view we should have regarding free will. I take a practical view of this matter and believe in free will. As I see it, if I am right, then I am…right. If I am wrong, then I could not believe otherwise. So, choosing to believe I can choose is the rational choice: I am right or I am not at fault for being wrong.
I do agree with Kant that we cannot prove that we have free will. He believed that the best science of his day was deterministic and that the matter of free will was beyond our epistemic abilities. While science has marched on since Kant, free will is still unprovable. After all, deterministic, random and free-will universes would all seem the same to the people in them. Crudely put, there are no observations that would establish or disprove metaphysical free will. There are, of course, observations that can indicate that we are not free in certain respects—but completely disproving (or proving) free will would seem to beyond our abilities—as Kant contended.
Kant had a fairly practical solution: he argued that although free will cannot be proven, it is necessary for ethics. So, crudely put, if we want to have ethics (which we do), then we need to accept the existence of free will on moral grounds. The experiments described by Shariff and Vohs seems to support Kant: when people doubt free will, this has an impact on their ethics.
One aspect of this can be seen as positive—determining the extent to which people are in control of their actions is an important part of determining what is and is not a just punishment. After all, we do not want to inflict retribution on people who could not have done otherwise or, at the very least, we would want relevant circumstances to temper retribution with proper justice. It also makes more sense to focus on deterrence and rehabilitation more than retribution. However just, retribution merely adds more suffering to the world while deterrence and rehabilitation reduces it.
The second aspect of this is negative—skepticism about free will seems to cause people to think that they have a license to do ill, thus leading to worse behavior. That is clearly undesirable. This then, provides an interesting and important challenge: balancing our view of determinism and freedom in order to avoid both unjust punishment and becoming unjust. This, of course, assumes that we have a choice. If we do not, we will just do what we do and giving advice is pointless. As I jokingly tell my students, a determinist giving advice about what we should do is like someone yelling advice to a person falling to certain death—he can yell all he wants about what to do, but it won’t matter.