Traci Kasperbauer

In a recent article for this journal, Bryan Pilkington makes a number of critical observations about one of our arguments for non-traditional medical conscientious objectors’ duty to refer. Non-traditional conscientious objectors are those professionals who object to indirectly performing actions—like, say, referring to a physician who will perform an abortion. In our response here, we discuss his central objection and clarify our position on the role of value conflicts in non-traditional conscientious objection.

A hybrid theory is any moral theory according to which different classes of individuals ought to be treated according to different principles. We argue that some hybrid theories are able to meet standards of psychological plausibility, by which we mean that it’s feasible for ordinary human beings to understand and act in accord with them. Insofar as psychological plausibility is a theoretical virtue, then, such hybrid theories deserve more serious consideration. To make the case for this view, we explain what psychological plausibility is and why we might value it, why the human/animal divide appears to be an entrenched feature of human psychology, and why Robert Nozick’s hybrid theory doesn’t go far enough. Finally, we make the case that a more promising psychologically plausible hybrid theory, with respect to humans and animals, will be (at least) at tribrid theory—that is, positing three domains rather than two.