A Critical Assessment of Shafer-Landau's Ethical Non-Naturalism

I focus on the ethical non-naturalism of Russ Shafer-Landau. First, I spend a good bit of time specifying the nature of two versions of naturalism and arguing that one is embraced ubiquitously-more importantly, should be embraced-by contemporary naturalists. I do so because if I am right about this, before we investigate the details of Shafer-Landau's ethical non-naturalism, there will be a significant burden of proof for him to meet. In my view, that burden is strong enough to justify the claim that a critic's epistemic task is merely to provide undercutting defeaters for Shafer-Landau's position, and not to proffer rebutting defeaters, though I will attempt to supply both. After presenting a crucial characterization of contemporary naturalism followed by a critique of naturalist emergent properties, I state and critique Shafer-Landau's ontology followed by the same for his epistemology. Both will be evaluated with a particular focus on their plausibility to support his ethical non-naturalism.