Those who claim that hardly anybody believes in “contracausal” free will, in which the human mind alone can affect the body, giving one the ability to make any of several decisions at a single instant of time, forget how deeply embedded contracausal free will is in the Abrahamic religions. After all, if you can’t “freely” choose your religion or your savior, but are at the mercy of the laws of physics, of what use is Heaven or Hell? The whole Christian myth involves your ability to freely choose what to believe.
And if you believe in contracausal free will, then you must reject physical determinism, for physics is the “cause” to which your decision is “contra”. That’s why so many fundamentalist believers reject determinism, and why the creationist Discovery Institute (DI), peopled with true believers, is lately on an anti-determinism kick, going after determinists like me who attribute all behavior and decisions to the laws of physics rather than some immaterial “will” that interacts with matter. (I’m assuming that virtually all the readers here who espouse compatibilism are also determinists.) Since the DI has failed to overturn the teaching of evolution, they’re turning their attention to free will. But their arguments against determinism are no better than their arguments against evolution.
I pretty much ignore the DI’s bloviations on free will, for there’s a religious motivation for their denial of determinism, but when physicist Sabine Hossenfelder made a no-nonsense post and a video arguing that there was no free will because we’re subject to physical law, that was too much for the DI. (See my take on Hossenfelder’s views, with which I pretty much align, here.) The DI, along with many devout believers, absolutely detest that kind of materialism—I call it “naturalism”, but it’s the same thing—and so they’ve been going after both of us. The latest attack came from the DI’s Evolution News site, with a post by David Klinghoffer called “Science as Oracle—where it gets weird“. And they enlisted Cornelius Hunter, DI Fellow, creationist, and adjunct professor at the evangelical Christian school Biola University, to make a 24-minute video going after both Hossenfelder and me. Klinghoffer simply repeats Hunter, so I’ll deal with the video.
Watch and enjoy! I’ll have a few remarks below. But Hunter really should learn how to pronounce my name. It’s not “Cohen” but “Coyne,” pronounced like “coin.”
Hunter goes off on all kinds of antievolution tangents in this video, failing to stick to the promised critique of determinism. That’s probably because his critique can be summed up very simply: “There’s no evidence for determinism—it’s just a weird and bizarre pronouncement of scientists like Cohen, and constitutes “scientism.”
And that’s pretty much it. Hunter considers determinism “anti-empirical” because of the supposed lack of evidence for it, and, curiously, argues that it also “demolishes epistemology”. Why? Because there’s no guarantee that the laws of physics acting on humans would guarantee that we’d find the truth (is he referring to Jesus?). Ergo we’re not only determined by the laws of physics to say that we have no free will, making that claim unreliable, but we’re liable to make all kinds of false statements because the laws of physics have no obvious connection to finding truth.
I can rebut both of these claims very briefly.
There’s no evidence for determinism. This claim is absurd. The response is that everything on Earth, and, as far as we can tell, in the solar system, in the Milky Way galaxy, and in Universe, has uniformly obeyed the laws of physics since the Big Bang. That’s not a speculation, but an empirical conclusion (see here for some of the evidence). And if everything we know obeys physical laws (we need confine our observations only to Earth, since that’s where God’s Creatures live), then there’s no reason to think that our brains don’t as well. End of rebuttal.
What is odd is that these guys attack physical determinism on the false basis that there’s no evidence for it, but then pull ancient mythologies out of their nether parts and not only claim that they’re true, but base their whole lives and belief systems on them. Biola University is founded on unevidenced but comforting Christian superstition from ancient, redacted, and contradictory scriptures. Well, I’m much more comfortable thinking that the speed of light in a vacuum is the same everywhere in our solar system than I am thinking that Jesus rose from the dead. I find it vastly amusing that people like Hunter are slaves to religious superstition and yet use a supposed lack of evidence to attack determinism.
Oh yes, and Hunter says that there’s plenty of evidence for contracausal free will! What is it? Merely the observation that we make what looks like “free” decisions! I don’t need to rebut that, because these “free decisions” are illusions; they don’t rebut determinism.
We can have no confidence that we can find truth if determinism be true. The rebuttal of this can be conveyed in two words: natural selection. Animals, including us, could hardly survive if we had sensory systems that didn’t give us a fairly accurate representation of reality: where the dangers lie, where the food is, what happens if we jump off a cliff. But of course we can be fooled as well: I give plenty of examples in Faith Versus Fact of how our evolved sensory systems, or our beliefs, can be fooled by things we didn’t encounter during our evolution. (A lot of people think, for example, that if you whirl an object around your head on a string, it will continue to travel in a spiral when you let go. And of course there are optical illusions.)
After making a few tepid attempts to rebut determinism, Hunter goes off the rails and takes out after evolution instead, giving two examples of convergent evolution: similar toxic peptides in a tree and in some animals, as well as the possibility of the independent origin of synapses and neurons in ctenophores on the one hand and cnidarian/bilaterians on the other.
I’ve put the two articles he cites below so you can see them (they’re free; click on the screenshots).
In one of the more ludicrous claims that Hunter makes (he doesn’t accept evolution), he argues that convergent evolution—the independent evolution of similar features in independent lineages—is not consistent with evolution, for evolution supposedly claims that structures are “lineage specific”. If features evolve several times independently, he argues, we don’t need the theory of evolution. This is arrant nonsense. There is nothing in evolutionary theory that bars similar features from appearing in two or more independently evolving lineages.
Of course he ignores the copious evidence that the independent lineages EVOLVED as independent. For example, marsupials and placentals, which, according to both molecular evidence and the fossil record had a common ancestor, have nevertheless evolved several examples of convergence in their descendants. The marsupial flying squirrel or mole, for example, bears striking similarities to the placental flying squirrel or mole.
In other words, Hunter’s claim about what evolution is “supposed” to do rests on denying evolution in the first place. He also ignores the idea that common ancestors constrain the materials that can be used for evolution in their descendants, as well as the notion that there are physical and biological niches that often evoke similar responses in independent lineages, like the resemblance of shape and fins in three independent lineages: fish, marine mammals like porpoises, and ichthyosaurs.
Finally, in the paper on neurons, Hunter attacks one sentence because it’s supposedly violates evolutionary theory as well: “animals frequently use different molecular toolkits to achieve similar functional outcomes”. He gloms onto the word “achieves”, arguing that the word implies that evolution has goals, and of course evolution isn’t goal oriented—which is true. But “achieves” in that sentence simply means that natural selection uses different molecular pathways when a similar adaptation arises. The scientists in the second paper are certainly not talking about teleology!
But the connection between free will and evolution is tenuous here, and I’m not sure why Hunter goes off on a siding, with the Numinous Express, apparently bound for Naturalism Town, suddenly takes the track towards Evolutionville.
Hunter’s mask slips at the end when he tries to explain out why so many smart people—I’m flattered that he puts both me and Hossenfelder in that class—believe in weird and bizarre things like determinism. His answer? He cites 2 Corinthians 4, verses 3 and 4, to wit (from the King James Bible):
But if our gospel be hid, it is hid to them that are lost:
In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Yep, Hossenfelder and I, along with every other physicist and determinist on the planet, have been blinded to the truth of free will because we don’t believe in the Christian God. I’m not sure if Hossenfelder is Jewish—though I suspect from her name she’s of Jewish ancestry—but if she is, well, that explains why both she and I might be particularly blind to the truth of the Gospels, and susceptible to Satan’s blandishments about free will.
Jebus, what an argument! Now since the DI people read this website, desperately wanting to discredit me, they’ll see this post as well. They will have an answer to it, too, for their God has given them the truth, and they can’t let a couple of upstart cultural Jews overturn it.