the word "free" has an established meaning in English which is fundamentally incompatible with determinism.
I don't think that's at all clear, and the fact that a clear majority of philosophers are compatibilists indicates that a bunch of people who spend their lives thinking about this sort of thing also don't think it's impossible for "free" to mean something compatible with determinism.
Let's take a look at that definition of yours, and see what it says if my decisions are determined by the laws of physics. "Not under the control or in the power of another"? That's OK; the laws of physics, whatever they are, are not another agent. "Able to act or be done as one wishes"? That's OK too; of course in this scenario what I wish is also determined by the laws of physics, but the definition doesn't say anything about that.
(I wouldn't want to claim that the definition you selected is a perfect one, of course.)
And you think chess-playing machines do [sc. have processes going on in them that at all resemble human deliberation]?
Yup. Much much simpler, of course. Much more limited, much more abstract. But yes, a tree-search with an evaluation at the leaves does indeed resemble human deliberation somewhat. (Do I need to keep repeating in each comment that all I claim is that arguably chess-playing programs have a very little bit of free will?)
if your standard for free will is "having processing that resembles human deliberation"
Nope. But not having such processing seems like a good indication of not having free will, because whatever free will is it has to be something to do with making decisions, and nothing a pachinko machine or the weather does seems at all decision-like, and I think the absence of any process that looks at all like deliberation seems to me to be a large part of why. (Though I would be happy to reconsider in the face of something that behaves in ways that seem sufficiently similar to, e.g., apparently-free humans despite having very different internals.)
if I am reliably predictable then it is impossible for me to do anything other than what a hypothetical reliable predictor predicts
I have pointed out more than once that in this universe there is never prediction that reliable, and anything less reliable makes the word "impossible" inappropriate. For whatever reason, you've never seen fit even to acknowledge my having done so.
But let's set that aside. I shall restate your claim in a form I think better. "If you are reliably predictable, then it is impossible for your choice and the predictor's prediction not to match." Consider a different situation, where instead of being predicted your action is being remembered. If it's reliably rememberable, then it is impossible for your action and the remember's memory not to match -- but I take it you wouldn't dream of suggesting that that involves any constraint on your freedom.
So why should it be different in this case? One reason would be if the predictor, unlike the rememberer, were causing your decision. But that's not so; the prediction and your decision are alike consequences of earlier states of the world. So I guess the reason is because the successful prediction indicates the fact that your decision is a consequence of earlier states of the world. But in that case none of what you're saying is an argument for incompatibilism; it is just a restatement of incompatibilism.
It's really not complicated.
Please consider the possibility that other people besides yourself have thought about this stuff, are reasonably intelligent, and may disagree with you for reasons other than being too stupid to see what is obvious to you.
again, this is what "reliable predictor" means
No. It means you will not choose B, which is not necessarily the same as that you cannot choose B. And (I expect I have said this at least once already in this discussion) words like "cannot" and "impossible" have a wide variety of meanings and I see no compelling reason why the only one to use when contemplating "free will" is the particular one you have in mind.
I don't think that's at all clear
How would you define it then?
a clear majority of philosophers
This would not be the first time in history that the philosophical community was wrong about something.
Do I need to keep repeating in each comment that all I claim is that arguably chess-playing programs have a very little bit of free will?
No, I get that. But "a very little bit" is still distinguishable from zero, yes?
nothing a pachinko machine or the weather does seems at all decision-like
Nothing about it seems human decision-like. But ...
[Originally published at Intentional Insights in response to Religious and Rational]
Spirituality and rationality seem completely opposed. But are they really?
To get at this question, let's start with a little thought experiment. Consider the following two questions:
1. If you were given a choice between reading a physical book (or an e-book) or listening to an audiobook, which would you prefer?
2. If you were given a choice between listening to music, or looking at the grooves of a phonograph record through a microscope, which would you prefer?
But I am more interested in the answer to a third question:
3. For which of the first two questions do you have a stronger preference between the two options?
Most people will have a stronger preference in the second case than the first. But why? Both situations are in some sense the same: there is information being fed into your brain, in one case through your ears and in the other through your eyes. So why should people's preference for ears be so much stronger in the case of music than books?
There is something in the essence of music that is lost in the translation between an audio and a visual rendering. The same loss happens for words too, but to a much lesser extent. Subtle shades of emphasis and tone of voice can convey essential information in spoken language. This is one of the reasons that email is so notorious for amplifying misunderstandings. But the loss in much greater in the case of music.
The same is true for other senses. Color is one example. A blind person can abstractly understand what light is, and that color is a byproduct of the wavelength of light, and that light is a form of electromagnetic radiation... yet there is no way for a blind person to experience subjectively the difference between red and blue and green. But just because some people can't see colors doesn't mean that colors aren't real.
The same is true for spiritual experiences.
Now, before I expand that thought, I want to give you my bona fides. I am a committed rationalist, and an atheist (though I don't like to self-identify as an atheist because I'd rather focus on what I *do* believe in rather than what I don't). So I am not trying to convince you that God exists. What I want to say is rather that certain kinds of spiritual experiences *might* be more than mere fantasies made up out of whole cloth. If we ignore this possibility we risk shutting ourselves off from a vital part of the human experience.
I grew up in the deep south (Kentucky and Tennessee) in a secular Jewish family. When I was 12 my parents sent me to a Christian summer camp (there were no other kinds in Kentucky back in those days). After a week of being relentlessly proselytized (read: teased and ostracized), I decided I was tired of being the camp punching bag and so I relented and gave my heart to Jesus. I prayed, confessed my sins, and just like that I was a member of the club.
I experienced a euphoria that I cannot render into words, in exactly the same way that one cannot render into words the subjective experience of listening to music or seeing colors or eating chocolate or having sex. If you have not experienced these things for yourself, no amount of description can fill the gap. Of course, you can come to an *intellectual* understanding that "feeling the presence of the holy spirit" has nothing to do with any holy spirit. You can intellectually grasp that it is an internal mental process resulting from (probably) some kind of neurotransmitter released in response to social and internal mental stimulus. But that won't allow you to understand *what it is like* any more than understanding physics will let you understand what colors look like or what music sounds like.
Happily, there are ways to stimulate the subjective experience that I'm describing other than accepting Jesus as your Lord and Savior. Meditation, for example, can produce similar results. It can be a very powerful experience. It can even become addictive, almost like a drug.
I am not necessarily advocating that you go try to get yourself a hit of religious euphoria (though I wouldn’t discourage you either -- the experience can give you some interesting and useful perspective on life). Instead, I simply want to convince you to entertain the possibility that people might profess to believe in God for reasons other than indoctrination or stupidity. Religious texts and rituals might be attempts to share real subjective experiences that, in the absence of a detailed modern understanding of neuroscience, can appear to originate from mysterious, subtle external sources.
The reason I want to convince you to entertain this notion is that an awful lot of energy gets wasted by arguing against religious beliefs on logical grounds, pointing out contradictions in the Bible and whatnot. Such arguments tend to be ineffective, which can be very frustrating for those who advance them. The antidote for this frustration is to realize that spirituality is not about logic. It's about subjective experiences that not everyone is privy to. Logic is about looking at the grooves. Spirituality is about hearing the music.
The good news is that adopting science and reason doesn’t mean you have to give up on spirituality any more than you have to give up on music. There are myriad paths to spiritual experience, to a sense of awe and wonder at the grand tapestry of creation, to the essential existential mysteries of life and consciousness, to what religious people call “God.” Walking in the woods. Seeing the moons of Jupiter through a telescope. Gathering with friends to listen to music, or to sing, or simply to share the experience of being alive. Meditation. Any of these can be spiritual experiences if you allow them to be. In this sense, God is everywhere.