Preface
This thread was inspired by a sub-discussion within the Free Will - Does it exist? thread.
For the purposes of this thread, “free will” refers to what I think of as compatibilist free will: the experience of feeling like we could have done other than we did. This is not an argument for or against the existence of libertarian free will: the actual ability to have done otherwise. The assumption here is that libertarian free will does not exist.
Suppose a friend asks to borrow $100 from you. You might weigh various factors: How good of a friend is this? How likely is it I’ll be repaid? Or is that important? Why does the friend need this money? What will be the impact on my financial situation? But there is a feeling that you are free to decide on either course. We feel, even if the analysis of the factors points to one direction, we could go in the other. After we’ve loaned the money or not, we feel as though it was possible to have done otherwise. This is the “free will” we experience.
Free Will Zombies
A free will zombie (or fw-zombie) is a person just like you or me except they do not experience this feeling of free will. Obviously this is a riff on the philosophical zombie (or p-zombie) concept. However, unlike a p-zombie, an fw-zombie does have the same degree of consciousness, awareness, emotion, intention, imagination, intelligence, and failings as we do. They just lack the free will experience. They would be otherwise indistinguishable from us.
Actually, just to make this thought experiment a little easier, let’s say that fw-zombies do have an extra degree of awareness. They can, if asked, tell you exactly the factors that went into their decision, what weights each factor was given and what the final score was for each option they considered.
Fred
If an fw-zombie, let’s call him Fred, was presented with a friend’s request to borrow money, he’d take just as long to decide as you or I. Along the way, Fred could tell you which way he was leaning as the various factors were gathered and evaluated. He makes his calculation and acts upon it. He has no sense of being able to do otherwise. Doing otherwise would be a completely nonsensical concept to Fred. He is, however, just as emotional about his decision. He may doubt his calculations or that he didn’t consider all the factors he could have. He has the same idea as us of what the world would look like if the calculation had gone the other way. But Fred has absolutely no sense that he could have done other than what the calculations dictated.
Murder!
Like you and me, Fred and all the other fw-zombies are opposed to murder. Fred knows murder is illegal and feels it is immoral just like anyone else. He’s fully aware of the death penalty for murder (in his jurisdiction) and that’s given a very large weight in his calculations. He wants to live and be unfettered in doing whatever his calculations drive him to do. This too is given a very large weight in his calculations.
Unfortunately, as is too often the case with non-zombie people, Fred succumbs to some dire circumstances. One day he’s hit with an idea that he should murder Vic. The reasons could be money, jealousy, hatred, who knows – the same reasons anyone else might commit murder – it’s not really important. Fred adds up all the pros and cons that occur to him at that moment and the answer comes out murder. Fred has acquired the intention to kill and he does, in fact, then go on to murder Vic.
Fred might later doubt his calculations. He might worry that he didn’t consider everything he might have. But to the question of “Given the same circumstances, would you do it again?” Fred is remorseless. “Of course I would do it again, that’s what the answer was” Fred would cry.
Should we Punish Fred?
If a tree fell on your car and I asked you if the tree should be punished, you’d look at me like I was crazy. We don’t punish the tree because trees have no free will. It didn’t choose to damage the car. The tree couldn’t have done otherwise and neither could Fred.
Since we’ve already eliminated libertarian free will, no murderer could actually have done otherwise and certainly not Fred. Is Fred’s total lack of an “I could have done otherwise” experience reason enough to not punish him? I claim it is not. Fred should be punished.
A punishment that is not enforced is not a deterrent. Punishments that are enforced are not always a sufficient deterrent but they’re much better than nothing (for both fw-zombie and non-zombie alike). The feeling of being able to have done otherwise is not relevant. We can create conditions that tend to produce the outcomes we desire. It does not matter that our compatibilist version of free will, though a real experience, is just an illusion of libertarian free will.
It is in this sense that I [post=9538489]asked[/post] “Is punishing a person really all that different from leveeing a river that floods?”