I read further down in your response and you clearly think that reaching the free will conclusion is only possible if it is rational and therefore correct.
Nope, simply being irrational doesn't automatically lead to false. It simply means that we are more justified in believing it to be false than to be true. If it is true, I don't believe it's possible to make any truth claims.
We already know from the study of minds that our sense experience is not completely trustworthy. "Trust my senses" is already a failed notion.
There's a difference between not completely trustworthy, and illusory. Taking the physical world as more real than our internal world leads to the awkward conclusion that no knowledge is possible since we only apprehend the physical world indirectly through our senses. So taking my sense experience as being demonstrative as genuine phenomenon is about the only thing I can do, even though the possibility remains that my experiences are in fact illusion.
Perhaps "perception of free will" would be a less grating term. IDK. All kinds of "thinking machines" can come to "conclusions" based on "reasoning". I would not grant *them* agency, would you?
I would not, which is why denying human beings have free will is effectively the same as denying we have agency. And since agency is a fundamental part of our experience, observable in the fact that even those who deny free will try to weasel around to claim that they're not denying efficacious agency, it is irrational to be skeptical that we have such agency.
If you're going to go down the path of solipcism, you can go by yourself.
I'm not, but that's where physicalism leads. And is my primary reason for rejecting physicalism as an adequate explanation of my phenomenal experience.
If you don't like "choice" read "decide" or some other such thing. (Our you could have waited until I went through another formulation of it...
Still requires active agency.
A conclusion reached based on the information available to the person is not irrational.
A conclusion that requires claiming basic experience is illusion is.
Given our apparent possession of free choice (in some limited fashion), it is rational to conclude we have free will.
Given the laws of nature and causality, it is rational to conclude that we don't have free will.
The laws of nature and causality? I'm sorry, but those are not self-evident truths. They are indirect inferences built on metaphysical commitments. So the challenge is explaining how free will could possibly exist in a world that appears to be causally ordered in some way, not to simply write off free will as an illusion because there is no way to make it fit into a mechanistic philosophy.
Depending on the way you weigh or are aware of the evidence, you might rationally come to either conclusion.
If you conclude that your basic experience is illusion, you quickly lose any ground for establishing that anything is true at all. Which is what makes denial of free will irrational.
If you are aware of both, it is rational to conclude that we don't know if we have free will or not. Does the mind, an emergent property of a functioning brain, have the property of free choice in addition to consciousness and self-awareness? I don't know, but it seems at least a possibility.
All of this displays a prior commitment to metaphysical positions with a complete lack of suspicion that those positions may be untenable.
For the same reason I would refer to "the weather" which is just the by-product, or rather an emergent property, of diurnal heating and cooling of atmospheric gases over land and water. Knowing the thermodynamic state of a parcel of gas (for example the one that just passed in through my window) does not tell me what the state of future parcels of gas doing the same later today will be. For that I would need to study the collective properties of the system called "the weather".
Mechanical indeterminism and intentional agency are distinctly different things, such that comparing one to the other entirely ignores the true issue at hand. It is not simply the inability to predict future outcomes that is problematic, but that the experience of making choices is basic to any epistemic program. Discarding it because it doesn't fit with philosophical commitments, rather than examining those commitments to see where the weakness is, is an entirely irrational move.
Our perceptions are as trustworthy as we think they are. There is gobs of work in the psychology of perception to tell us this. I didn't say believing in free will was irrational, but you seem to be saying that believing the opposite is.
Because truth claims depend on the existence of free will, so while it is hypothetically possible for free will to not exist as an ontological fact it is irrational to hold that it does as a truth claim.
The only way to couple meaningfully to the physical body is the electromagnetic field, which is carried by photons.
Oh, you've solved the interaction problem have you?
I didn't say anything about minds being "illusion" of the brain. Mind is clearly a property of our brains. The question is whether some sort of free will also emerges from function of the brain in the form of "mind".
When we boil it down, if physicalism is true then minds
have to be illusions with reality being the physical operations in the brain. But that removes our ability to know reality, because we indirectly perceive such realities through our conscious experience. Calling it emergent is simply saying it is mysterious in some way, but it doesn't remove the element of illusion it just kicks it down the road. If minds do not have a true ontological status separate from the physical matter with which they interact, they are illusion. Plain and simple.
Take your solipsism elsewhere, sir!
It's not my solipsism, it's the absurd conclusion you end up with if you ruthlessly chase down what physicalism claims to be true rather than taking physicalist presuppositions as a given. Peppering in confounders like calling consciousness an "emergent behavior" doesn't remove the base fact that physicalist monism requires that in some way our conscious experience be an illusion.