That’s not a valid argument for at least four reasons:
There are manyperceptualillusions, so the hypothesis that free will is an illusion is not a priori an extraordinary claim. (In fact, the feeling that you are living in a classical Galilean universe is a perceptual illusion!)
There is evidence that free will is in fact a perceptual illusion.
It makes evolutionary sense that the genes that built our brains would want to limit the extent to which they could become self-aware. If you knew that your strings were being pulled you might sink into existential despair, which is not generally salubrious to reproductive fitness.
We now understand quite a bit about how the brain works and about how computers work, and all the evidence indicates that the brain is a computer. More precisely, there is nothing a brain can do that a properly programmed Turing machine could not do, and therefore no property that a brain have that cannot be given to a Turing machine. Some Turing machines definitely do not have free will (if you believe that a thermostat has free will, well, we’re just going to have to agree to disagree about that). So if free will is a real thing you should be able to exhibit some way to distinguish those Turing machines that have free will from those that do not. I have heard no one propose such a criterion that doesn’t lead to conclusions that grate irredeemably upon my intuitions about what free will is (or what it would have to be if it were a real thing).
In this respect, free will really is very much like God except that the subjective experience of free will is more common than the subjective experience of the Presence of the Holy Spirit.
BTW, it is actually possible that the subjective experience of free will is not universal among humans. It is possible that some people don’t have this subjective perception, just as some people don’t experience the Presence of the Holy Spirit. It is possible that this lack of the subjective perception of free will is what leads some people to submit to the will of Allah, or to become Calvinists.
so the hypothesis that free will is an illusion is not a priori an extraordinary claim
I basically agree with that too—it is you rather than me who brought up the notion of extraordinary claims. It seems to me that the notion of extraordinary claims in this case is a red herring—that free will is real is a claim, and that free will is not real is a claim; I am simply arguing that neither claim has a greater burden of proof than the other. In fact, I think that there is room for reasonable people to disagree with regard to the free will question.
In fact, the feeling that you are living in a classical Galilean universe is a perceptual illusion!
I don’t know what that means exactly, but it sounds intriguing! Do you a link or a reference with additional information?
2 There is evidence that free will is in fact a perceptual illusion
None of those experiments provides strong evidence; the article you linked lists for several of the experiments objections to interpreting the experiment as evidence against free will (e.g., per the article, “Libet himself did not interpret his experiment as evidence of the inefficacy of conscious free will”). One thing in particular that I noticed is that many of the experiments dealt with more-less arbitrary decisions—e.g. when to flick one’s wrist, when to make brisk finger movements at arbitrary intervals, etc. Even if it could be shown that the brain somehow goes on autopilot when making trivial, arbitrary decisions that hold no significant consequences, it is not clear that this says anything about more significant decisions—e.g. what college to attend, how much one should spend on a house, etc.
3 It makes evolutionary sense that the genes that built our brains would want to limit the extent to which they could become self-aware. If you knew that your strings were being pulled you might sink into existential despair, which is not generally salubrious to reproductive fitness.
That is a reasonable statement and I have no argument with it. But, while it provides a possible explanation why we might perceive free will even if it does not exist, I don’t think that it provides significant evidence against free will.
4 We now understand quite a bit about how the brain works and about how computers work, and all the evidence indicates that the brain is a computer. More precisely, there is nothing a brain can do that a properly programmed Turing machine could not do
I agree with that.
and therefore no property that a brain have that cannot be given to a Turing machine. Some Turing machines definitely do not have free will… So if free will is a real thing you should be able to exhibit some way to distinguish those Turing machines that have free will from those that do not.
If that statement is valid, then it seems to me that the following statement is also valid:
“There is no property that a brain can have that cannot be given to a Turing machine. Some Turing machines definitely are not conscious. So if consciousness is a real thing you should be able to exhibit some way to distinguish those Turing machines that are conscious will from those that are not.”
So, do you believe that consciousness is a real thing? And, can a Turing machine be conscious? If so, how are we to distinguish those Turing machines that are conscious will from those that are not?
neither claim has a greater burden of proof than the other
That may be. Nonetheless, at the moment I believe that free is an illusion, and I have some evidence that supports that belief. I see no evidence to support the contrary belief. So if you want to convince me that free will is real then you’ll have to show me some evidence.
If you don’t care what I believe then you are under no obligations :-)
None of those experiments provides strong evidence
The fact that you can reliably predict some actions that people perceive as volitional up to ten seconds in advance seems like pretty strong evidence to me. But I suppose reasonable people could disagree about this. In any case, I didn’t say there was strong evidence, I just said there was some evidence.
So, do you believe that consciousness is a real thing?
That depends a little on what you mean by “a real thing.” Free will and consciousness are both real subjective experiences, but neither one is objectively real. Their natures are very similar. I might even go so far as to say that they are the same phenomenon. I recommend reading this book if you really want to understand it.
And, can a Turing machine be conscious?
Yes, of course. You would have to be a dualist to believe otherwise.
If so, how are we to distinguish those Turing machines that are conscious will from those that are not?
That’s very tricky. I don’t know. I’m pretty sure that our current methods of determining consciousness produce a lot of false negatives. But if a computer that could pass the Turing test told me it was conscious, and could describe for me what it’s like to be a conscious computer, I’d be inclined to believe it.
I don’t know what that means exactly, but it sounds intriguing! Do you a link or a reference with additional information?
It’s not that deep. It just means that your perception of reality is different from actual reality in some pretty fundamental ways. The sun appears to revolve around the earth, but it doesn’t. The chair you’re sitting on seems like a solid object, but it isn’t. “Up” always feels like it’s the same direction, but it’s not. And you feel like you have free will, but you don’t. :-)
If you don’t care what I believe then you are under no obligations
As a matter of fact, I think the free will question is an interesting question, but not an instrumentally important question; I can’t really think of anything I would do differently if I were to change my mind on the matter. This is especially true if you are right—in that case we’d both do whatever we’re going to do and it wouldn’t matter at all!
Free will and consciousness are both real subjective experiences, but neither one is objectively real. Their natures are very similar. I might even go so far as to say that they are the same phenomenon.
Interesting. The reason I asked the question is that there are some thinkers who deny the reality of free will but accept the reality of consciousness (e.g. Alex Rosenberg); I was curious if you are in that camp. It sounds as though you are not.
I recommend reading this book if you really want to understand (consciousness).
Glad to see you are open to at least some of Daniel Dennett’s views! (He’s a compatibilist, I believe.)
It’s not that deep. It (the idea that the feeling that you are living in a classical Galilean universe is a perceptual illusion) just means that your perception of reality is different from actual reality in some pretty fundamental ways. The sun appears to revolve around the earth, but it doesn’t. The chair you’re sitting on seems like a solid object, but it isn’t. “Up” always feels like it’s the same direction, but it’s not.
Understood. My confusion came from the term “Galilean Universe” which I assumed was a reference to Galileo (who was actually on-board with the idea of the Earth orbiting the Sun—that is one of the things that got him into some trouble with the authorities!)
we’d both do whatever we’re going to do and it wouldn’t matter at all!
Exactly right. I live my life as if I’m a classical conscious being with free will even though I know that metaphysically I’m not. It’s kind of fun knowing the truth though. It gives me a lot of peace of mind.
I was curious if you are in that camp.
I’m not familiar with Rosenberg so I couldn’t say.
Glad to see you are open to at least some of Daniel Dennett’s views! (He’s a compatibilist, I believe.)
Yes, I think you’re right. (That video is actually well worth watching!)
Galilean Universe
Sorry, my bad. I meant it in the sense of Galilean relativity (a.k.a. Newtonian relativity, though Galileo actually thought of it first) where time rather than the speed of light is the same for all observers.
That’s not a valid argument for at least four reasons:
There are many perceptual illusions, so the hypothesis that free will is an illusion is not a priori an extraordinary claim. (In fact, the feeling that you are living in a classical Galilean universe is a perceptual illusion!)
There is evidence that free will is in fact a perceptual illusion.
It makes evolutionary sense that the genes that built our brains would want to limit the extent to which they could become self-aware. If you knew that your strings were being pulled you might sink into existential despair, which is not generally salubrious to reproductive fitness.
We now understand quite a bit about how the brain works and about how computers work, and all the evidence indicates that the brain is a computer. More precisely, there is nothing a brain can do that a properly programmed Turing machine could not do, and therefore no property that a brain have that cannot be given to a Turing machine. Some Turing machines definitely do not have free will (if you believe that a thermostat has free will, well, we’re just going to have to agree to disagree about that). So if free will is a real thing you should be able to exhibit some way to distinguish those Turing machines that have free will from those that do not. I have heard no one propose such a criterion that doesn’t lead to conclusions that grate irredeemably upon my intuitions about what free will is (or what it would have to be if it were a real thing).
In this respect, free will really is very much like God except that the subjective experience of free will is more common than the subjective experience of the Presence of the Holy Spirit.
BTW, it is actually possible that the subjective experience of free will is not universal among humans. It is possible that some people don’t have this subjective perception, just as some people don’t experience the Presence of the Holy Spirit. It is possible that this lack of the subjective perception of free will is what leads some people to submit to the will of Allah, or to become Calvinists.
I agree with that
I basically agree with that too—it is you rather than me who brought up the notion of extraordinary claims. It seems to me that the notion of extraordinary claims in this case is a red herring—that free will is real is a claim, and that free will is not real is a claim; I am simply arguing that neither claim has a greater burden of proof than the other. In fact, I think that there is room for reasonable people to disagree with regard to the free will question.
I don’t know what that means exactly, but it sounds intriguing! Do you a link or a reference with additional information?
None of those experiments provides strong evidence; the article you linked lists for several of the experiments objections to interpreting the experiment as evidence against free will (e.g., per the article, “Libet himself did not interpret his experiment as evidence of the inefficacy of conscious free will”). One thing in particular that I noticed is that many of the experiments dealt with more-less arbitrary decisions—e.g. when to flick one’s wrist, when to make brisk finger movements at arbitrary intervals, etc. Even if it could be shown that the brain somehow goes on autopilot when making trivial, arbitrary decisions that hold no significant consequences, it is not clear that this says anything about more significant decisions—e.g. what college to attend, how much one should spend on a house, etc.
That is a reasonable statement and I have no argument with it. But, while it provides a possible explanation why we might perceive free will even if it does not exist, I don’t think that it provides significant evidence against free will.
I agree with that.
If that statement is valid, then it seems to me that the following statement is also valid:
“There is no property that a brain can have that cannot be given to a Turing machine. Some Turing machines definitely are not conscious. So if consciousness is a real thing you should be able to exhibit some way to distinguish those Turing machines that are conscious will from those that are not.”
So, do you believe that consciousness is a real thing? And, can a Turing machine be conscious? If so, how are we to distinguish those Turing machines that are conscious will from those that are not?
That may be. Nonetheless, at the moment I believe that free is an illusion, and I have some evidence that supports that belief. I see no evidence to support the contrary belief. So if you want to convince me that free will is real then you’ll have to show me some evidence.
If you don’t care what I believe then you are under no obligations :-)
The fact that you can reliably predict some actions that people perceive as volitional up to ten seconds in advance seems like pretty strong evidence to me. But I suppose reasonable people could disagree about this. In any case, I didn’t say there was strong evidence, I just said there was some evidence.
That depends a little on what you mean by “a real thing.” Free will and consciousness are both real subjective experiences, but neither one is objectively real. Their natures are very similar. I might even go so far as to say that they are the same phenomenon. I recommend reading this book if you really want to understand it.
Yes, of course. You would have to be a dualist to believe otherwise.
That’s very tricky. I don’t know. I’m pretty sure that our current methods of determining consciousness produce a lot of false negatives. But if a computer that could pass the Turing test told me it was conscious, and could describe for me what it’s like to be a conscious computer, I’d be inclined to believe it.
It’s not that deep. It just means that your perception of reality is different from actual reality in some pretty fundamental ways. The sun appears to revolve around the earth, but it doesn’t. The chair you’re sitting on seems like a solid object, but it isn’t. “Up” always feels like it’s the same direction, but it’s not. And you feel like you have free will, but you don’t. :-)
As a matter of fact, I think the free will question is an interesting question, but not an instrumentally important question; I can’t really think of anything I would do differently if I were to change my mind on the matter. This is especially true if you are right—in that case we’d both do whatever we’re going to do and it wouldn’t matter at all!
Interesting. The reason I asked the question is that there are some thinkers who deny the reality of free will but accept the reality of consciousness (e.g. Alex Rosenberg); I was curious if you are in that camp. It sounds as though you are not.
Glad to see you are open to at least some of Daniel Dennett’s views! (He’s a compatibilist, I believe.)
Understood. My confusion came from the term “Galilean Universe” which I assumed was a reference to Galileo (who was actually on-board with the idea of the Earth orbiting the Sun—that is one of the things that got him into some trouble with the authorities!)
Exactly right. I live my life as if I’m a classical conscious being with free will even though I know that metaphysically I’m not. It’s kind of fun knowing the truth though. It gives me a lot of peace of mind.
I’m not familiar with Rosenberg so I couldn’t say.
Yes, I think you’re right. (That video is actually well worth watching!)
Sorry, my bad. I meant it in the sense of Galilean relativity (a.k.a. Newtonian relativity, though Galileo actually thought of it first) where time rather than the speed of light is the same for all observers.