4/10 The Challenge
Expanded Definition and Explanation
If you still hold the opinion that some things can possess "more" free will than others, please give an example and a more concrete definition of what you mean by "free will" in that context. Also please explain why you consider that definition to be as "useful" as the common models of free will, and how you would use your definition of free will to distinguish between circumstances when we commonly hold a person responsible for their actions and those when we don't hold the person responsible.
For a definition, see Webster (Def. No. 1). For a more detailed explanation, see my second chapter. I think specific details of the concept depend on what we will learn about the human mind, how it works. Therefore, I think, I have an excuse not to give all the possible details.
About examples: it seems to me you partly ignored my example of a partly insane murderer, and my discussion of it. But see the next posts, and the next paragraph, for more of them.
Well, even a "tiny, tiny little bit of intent" is intent. It seems to me that you either have the capacity to form intent or you don't, and you're saying that a thermostat does. Therefore, a thermostat possesses free will by your definition of free will. If that's true, the burden of proof would be on you to demonstrate how this view is "useful" and thereby justifies calling it "free will." You would also have to show it to be compatible with determinism. In order to prove it useful, you would have to examine why we hold that people are capable of forming intent, but not thermostats, and provide a meaningful alternative that fits within both your definition of free will and a "real world" view of ethics. For your definition to be compatible with determinism, you would have to show that your definitions hold true even in a deterministic world where "could have done otherwise" and "ultimate source" are both nonexistent.
That sounds like a reasonable challenge. Fortunately, I think that some of the work is already done.
Saying that a thermostat has free will is useful because it is part of a manner of speech that is natural and common, at least if we talk about more complicated machines (a thermostat is pretty much the lowest of the low with regard to free will, so I wouldn't be surprised if the usefulness of such a borderline case is itself a borderline case), as the quote about hacker culture above shows. Furthermore, it is useful if we want to talk about different kinds of animals, and rather inevitable if we want to stick to a gradualistic view of evolution. Furthermore, it avoids the pitfall of making the concept of free will so ambitious that it is impossible to know whether or not we encounter a genuine case of free will, which would make the concept of free will completely useless for any real world application.
People tend to deny that a thermostat has a free will, since the free will of the thermostat is diluted behind recognition, and it takes a philosopher to see it. It should also be noted that there is a large gap both between human beings and other apes, and even more so between human beings and the most sophisticated of current computer programs with regard to free will. Therefore, it is not surprising that people claim that human beings are completely different and incomparable to anything else.
As I explained above, thermostats are punished. It just goes by the name "repaired". Note that due to the large gap between contemporary human beings and all other contemporary beings, the amount of responsibility of non-human beings is usually negligible. But note that it is usual to talk about the "punishment" of, say, dogs. It is also usual to describe animals as "good" or "evil", although those terms are sometimes watered down (a dog sometimes is said to have a "good nature", not to be "good", maybe to make a moral distinction between dogs and humans). Dogs' minds as boxes seem to be dark enough to become attributed responsibility on a regular basis, while according to Descartes, dogs are some kind of p-zombie-like machines.
Note also that there is not only a transition between human machines and other machines (if physicalism is true, it is inevitable to count humans as kinds of machines) and between other animals and humans (that is, our ancestors), but a transition from fertilized eggs to full grown adults. It seems obvious that fertilized eggs don't exercise free will: they are too light. Adults, on the other hand, should be considered responsible.
It seems undebated that a thermostat is perfectly deterministic, so I don't see how compatibilism could be an issue. Given the exactly same circumstances, the thermostat could not have done otherwise, and so on. Since I don't use the forking path model or the ultimate source model, I am untroubled by determinism. Instead, I have now the burden to explain why I can do without those models. As I said above, I think they are useless for ethics. I shall elaborate why.
I will restrict myself to the forking paths model. I leave the demonstration of the uselessness of the ultimate source model as an exercise to the reader.
I will first discuss another all-or-nothing effect. Next, I will try to explore the alleged benefit of "could have done otherwise". Third, I will mention a counterexample mentioned in the article you quoted. Fourth, I will cite an example of moral behavior without alternatives (thanks to Dennett, where I found it).
1. All-Or-Nothing
Some person, call it "Attila", has killed another person, Victor the victim. Is Attila morally responsible? That depends on whether or not there is a forking point, with one path leading to the killing, the other not leading to the killing. If there is such a forking point, then Attila had a choice, therefore, he is responsible. If there is no such forking point, Attila had no choice and is not responsible.
Now assume that we find such a forking point, but we also discover that there was a pressure for a certain outcome. On the forking point, it would have required an extraordinary noble man not to follow the road to the killing. Only one out of hundred randomly chosen people would have followed the road not to kill, faced with the very same situation. Is Attila nevertheless as much responsible as he would have been if the pressure would have been just the other way round, that is, only one in hundred persons would have followed the path leading to the killing?
Now, my scenario is vague about important details. What would it mean for another person to face "the same" situation? Just the actual details? Or would it also mean to share Attila's troubled childhood? If you would have had the same childhood, would you have abstained from the killing? If the upcoming during childhood is irrelevant, why is it occasionally mentioned in court? And what would have happened if you would not only share the same childhood, but also the same set of genes, to put you in "the same situation"?
However we answer this, it seems to me that forking -> free will -> responsibility is too simple to be useful.
2. Rebel Without a Cause
I still don't understand how this "could have done otherwise" makes you responsible at all, in your book. Let's visit our friend Attila again. Attila has killed Victor, but there was a certain point in his past where he magically could have done otherwise. That is, there was a branching point where his free will kicked in and pushed the lever. How does that make Attila guilty? How could Attila have made his free will act different than it did? His neurons fired "don't do it! Don't do it!", but, alas, it pleased his free will to push the lever, out of the blue, this way instead of that way. Poor Attila. Now God has a pretext to burn him.
3. Frankfurt's Argument
Attila plans to kill Victor. Nero, the evil neurosurgeon, implants a brain receiver in Attilas brain. Nero wants Attila to kill Victor, but would prefer if Attila would do it following his own intention. Should Attila chicken out, Nero sends an impulse that forces Attila to kill Victor. It turns out that this is unnecessary: Attila kills Victor without the interference of Nero. Now Attila could not have done otherwise. Does that really mean that he is not responsible?
4. Luther's Argument
"Here I stand, I can't do otherwise" says Luther. Does he say this to deny his personal responsibility? Not quite; he is saying that his personal responsibility forces him to act like he acts. He exercises his free will, despite external obstacles. He just can't do otherwise.