From a perspective of nearly eighty years:
I come to my present state for two separate reasons. As a student of Charles Darwin, I am totally convinced – God or no God – that we are (as the 19th-century biologist Thomas Henry Huxley used to say) modified monkeys rather than modified mud. Culture is hugely important, but to ignore our biology is just wrong. Second, I am drawn, philosophically, to existentialism. A century after Darwin, Jean-Paul Sartre said that we are condemned to freedom, and I think he is right. Even if God does exist, He or She is irrelevant. The choices are ours.
Darwinian evolutionary theory shows how this all came about, historically, through the forces of nature. It suggests that there is no eternal future or, if there is, it is not relevant for the here and now. Rather, we must live life to the full, within the context of – liberated by – our Darwinian-created human nature.
Michael Ruse, “The meaning to life? The meaning to life? A Darwinian existentialist has his answers” at Aeon
He does not really address the fact that most naturalists don’t actually believe that the free will he assumes actually exists.
If there is no God and no free will, we are a good bit closer to nothing than to philosophy.
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See also: Mind Matters News offers a number of articles on free will bu neurosurgeon Dr. Michael Egnor including
Can physics prove there is no free will? No, but it can make physicists incoherent when they write about free will. It’s hilarious. Sabine Hossenfelder misses the irony that she insists that people “change their minds” by accepting her assertion that they… can’t change their minds.
Does “alien hand syndrome” show that we don’t really have free will? One woman’s left hand seemed to have a mind of its own. Did it? Alien hand syndrome doesn’t mean that free will is not real. In fact, it clarifies exactly what free will is and what it isn’t.
But is determinism true? Does science show that we fated to want whatever we want? Modern science—both theoretical and experimental—strongly supports the reality of free will.
How can mere products of nature have free will? Materialists don’t like the outcome of their philosophy but twisting logic won’t change it
Does brain stimulation research challenge free will? If we can be forced to want something, is the will still free?
Is free will a dangerous myth? The denial of free will is a much more dangerous myth
Also: Do quasars provide evidence for free will? Possibly. They certainly rule out experimenter interference.
and
Can free will even be an illusion? Michael Egnor reiterates the freeing implications of quantum indeterminacy