Jerry Coyne has posted a question on his blog site:
I’ll comment here, because I think I am banned from posting comments to Coyne’s site.
People avoid these discussions because they know, perhaps from experience, that such discussions produce a lot of heat but very little light.
Here’s the problem:
- There cannot be any credible evidence against free will. For any such evidence would already demonstrate that the evidence was not freely obtained. And if the evidence was not freely obtained, then it cannot make a credible case against free will.
- There cannot be any credible evidence for free will. For we cannot rule out the possibility of hidden variables, so that what looks free is really determined.
And that leaves arguments at an impasse.
In my experience, arguments about free will are pretty much disagreements over the meaning of “free will”.