Naturalism's Incoherence Problem

I was listening to a podcast discussion the other day between two philosophers, one an atheist and one a theist, on the topic of whether or not naturalism is incoherent. Disappointingly, the discussion quickly devolved into an exchange over whether or not God exists and never did get around to exploring the original topic.

Maybe it's just as well because I think the topic title is slightly misconceived.

A concept is incoherent when it contains mutually contradictory features. For example the concepts of a married bachelor, or a giant pygmy, or a round square are incoherent because the first term in each contradicts and precludes the second and vice-versa.

But naturalism itself is not incoherent in this way. There don't appear, to me at least, any internal contradictions in the view that nature, as can be described by science, is all there is.

However, this is not to say that there are not coherence problems in trying to live as a consistent naturalist. Many who adopt a naturalistic worldview find themselves unable to live with it and have to go about their daily lives acting as if naturalism were false.

For example, most of us deeply desire in our lives a number of what might be called existential qualities, none of which can be sustained under naturalism:

• We desire meaning. Viktor Frankl, a holocaust survivor, wrote in his book Man's Search for Meaning that men can't live without meaning. Yet on naturalism, there's no meaning to be found anywhere in the cosmos, just "blind, pitiless indifference" in the words of Richard Dawkins.
• We desire to ground our moral judgments in something solid, but on naturalism morality is "just an illusion, fobbed off on us by our genes, to get us to cooperate with each other" according to philosopher Michael Ruse. Nothing is really right or wrong in a moral sense. It's just useful or not in promoting the survival of the species.
• We desire justice, but on naturalism death is the end and selfish and cruel men experience the same fate as their victims - total extinction. Unless there's accountability for our actions justice is a fiction.
• We desire dignity, but on naturalism we're just animals, gobs of protoplasm in thrall to our genes, with no free will and no real specialness. In the words of Stephen Hawking "The human race is just a chemical scum on a moderate-sized planet." Supreme Court Justice Oliver Wendell Holmes put it this way: "I see no reason for attributing to man a significance different in kind from that which belongs to a baboon or a grain of sand." On naturalism no lives matter.
• We desire to live, but on naturalism we all die and when those we love are gone they're gone forever. The late Will Provine of Cornell University writes: "There are no gods, no purposes, and no goal-directed forces of any kind. There is no life after death...no ultimate foundation for ethics, no ultimate meaning in life, and no free will." (emphasis mine)
• We desire happiness, but on naturalism the fate of most humans who've ever walked the earth has been simply to be born, suffer and die. There are moments of pleasure, Woody Allen once said, "but they don't add up to anything."

Most people who believe that the natural world is all there is, however, can't live consistently with these implications of their fundamental assumption. They're like a person who suffers from dissociative identity disorder. They live their daily existence as though their lives were meaningful, as though there were such things as justice, dignity, and morality, but then they switch into their alter ego and insist that the only thing that could actually make any of these possible - i.e., God - doesn't exist.

There's an incoherence in naturalism, to be sure, but it's not found in the concept itself. Rather, it's found in the attempt to live as though the concept were true.