Does this mean that you concede that our desires are not freely chosen?
I think some of our desires are more freely chosen than others. I do not think an action chosen on account of a not-freely-chosen desire is necessarily best considered unfree for that reason.
[...] are not impossible [...]
That isn't quite what you said before, but I'm happy for you to amend what you wrote.
The reason they are extremely unlikely [...]
It seems to me that the argument you're now making has almost nothing to do with the argument in chapter 7 of Deutsch's book. That doesn't (of course) in any way make it a bad argument, but I'm now wondering why you said what you did about Deutsch's books.
Anyway. I think almost all the work in your argument (at least so far as it's relevant to what we're discussing here) is done by the following statement: "Explanatory power turns out to be the only known effective filter for theories with high predictive power." I think this is incorrect; simplicity plus past predictive success is a pretty decent filter too. (Theories with these properties have not infrequently turned out to be embeddable in theories with good explanatory power, of course, as when Mendeleev's empirically observed periodicity was explained in terms of electron shells, and the latter further explained in terms of quantum mechanics.)
It doesn't mean UIP, it simply requires UIP.
OK, but in that case either you owe us something nearer to necessary and sufficient conditions, or else you need to retract your claim that incompatibilism does better than compatibilism in the "is there a nice clear criterion?" test. Also, if you aren't claiming anything close to "free will = UIP" then I no longer know what you meant by saying that ialdabaoth got it more or less right.
to be "real" free will, there would have to be some circumstances where [...]
Sure. That would be why I said "with great confidence" rather than "with absolute certainty". I might, indeed, take the bribe after all, despite all those very strong reasons to expect me not to. But it's extremely unlikely. (So no, I don't agree that I've "chosen a bad example"; rather, I think you misunderstood the example I gave.)
let me propose a better one
If you say "you chose a bad example to make your point, so let me propose a better one" and then give an example that doesn't even vaguely gesture in the direction of making my point, I'm afraid I start to doubt that you are arguing in good faith.
Not so. In the first case you are being coerced by [...]
The things you describe me as being "coerced by" are (1) not agents and (2) not external to me. These are not irrelevant details, they are central to the intuitive meaning of "free will" that we're looking for philosophically respectable approximations to. (Perhaps you disagree with my framing of the issue. I take it that that's generally the right way to think about questions like "what is free will?".)
In particular, I think your claim about "the only difference" is flatly wrong.
what I require is a notion of free will that is the same for all observers, including a hypothetical one that can predict anything that can be predicted in principle.
That sounds sensible on first reading, but I think actually it's a bit like saying "what I require is a notion of right and wrong that is the same for all observers, including a hypothetical one that doesn't care about suffering" and inferring that our notions of right and wrong shouldn't have anything to do with suffering. Our words and concepts need to be useful to us, and if some such concept would be uninteresting to a hypothetical superbeing that can predict anything that's predictable in principle, that is not sufficient reason for us not to use it. Still more when your hypothetical superbeing needs capabilities that are probably not even in principle possible within our universe.
(I think, in fact, that even such a superbeing might have reason to talk about something like "free will", if it's talking about very-limited beings like us.)
any phenomenon that someone claims is objectively real.
I haven't, as it happens, been claiming that free will is "objectively real". All I claim is that it may be a useful notion. Perhaps it's only as "objectively real" as, say, chess; that is, it applies to us, and what it is is fundamentally dependent on our cognitive and other peculiarities, and a world of your hypothetical superbeings might be no more interested in it than they presumably would be in chess, but you can still ask "to what extent is X exercising free will?" in the same way as you could ask "is X a better move than Y, for a human player with a human opponent?".
an example that doesn't even vaguely gesture in the direction of making my point
Sorry about that. I really was trying to be helpful.
I haven't, as it happens, been claiming that free will is "objectively real". All I claim is that it may be a useful notion.
Well, heck, what are we arguing about then? Of course it's a useful notion.
chess
A better analogy would be "simultaneous events at different locations in space." Chess is a mathematical abstraction that is the same for all observers. Simultaneity, like free will, depends on your point of view.
[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.