 It is worth emphasizing the commitments of this ingenious proposal. Consider one central issue. Cuneo and Shafer-Landau argue for the existence of several substantive-seeming conceptual truths about morality. As they admit, their view is quite heterodox in virtue of this. However, they nowhere claim that all necessary moral truths can be explained as conceptual truths. That, of course, would be a much stronger claim, and much harder to motivate. However, Intuitive Metaphysical is a quite general modal covariance thesis, and in light of this, only the stronger claim would suffice to explain its truth.