 Developing this analogy, however, seems to require that we also tell some story about why moral judgments are reliable “observations” about what is right. The foundationalist view of moral intuitions held by McMahan (2000) and perhaps other recent theorists who draw extensively on moral intuitions in their work in substantive ethics also demands some story about their reliability and so does not avoid this difficulty, even if the view also allows for defeasibility of some of the foundational intuitions. Perhaps we might need something like the causal story that some theorists of knowledge offer to explain the reliability of observations. Since no such story is forthcoming, opponents argue, proponents of reflective equilibrium must reject the requirement or give up the analogy. Proponents of reflective equilibrium might reject the requirement by suggesting it is premature to ask for such a story in ethics or by claiming that we can provide no analogous causal story for credible judgments we make in other areas, including mathematics or logic. So the utilitarian objection is not conclusive.