After criticizing three common conceptions of therelationship between practical ethics and ethical theory, analternative modeled on Aristotle's conception of the relationshipbetween rhetoric and philosophical ethics is explored. Thisaccount is unique in that it neither denigrates the project ofsearching for an adequate comprehensive ethical theory norsubordinates practical ethics to that project. Because the purpose of practical ethics, on this view, is tosecure the cooperation of other persons in a way that respectstheir status as free and equal, it seeks to influence thejudgments (...) of others by providing them with reasons that areaccessible to their own understanding. On this account, theindependence of practical ethics is rooted in an appreciation ofthe constraints that non-ideal circumstances place on the rolethat the philosophically refined premises of moral theory canplay in such public deliberations. Practical and philosophicalethics are united, not by shared theoretical frameworks orprinciples, but by the need to exercise intelligently the sameintellectual and affective capacities. They are separated, notby the particularity or generality of their starting points, butby their responsiveness to the practical problem of facilitatingsound normative deliberations among persons as we find them,under non-ideal circumstances. (shrink)

Although decision‐making algorithms are not new to medicine, the availability of vast stores of medical data, gains in computing power, and breakthroughs in machine learning are accelerating the pace of their development, expanding the range of questions they can address, and increasing their predictive power. In many cases, however, the most powerful machine learning techniques purchase diagnostic or predictive accuracy at the expense of our ability to access “the knowledge within the machine.” Without an explanation in terms of reasons or (...) a rationale for particular decisions in individual cases, some commentators regard ceding medical decision‐making to black box systems as contravening the profound moral responsibilities of clinicians. I argue, however, that opaque decisions are more common in medicine than critics realize. Moreover, as Aristotle noted over two millennia ago, when our knowledge of causal systems is incomplete and precarious—as it often is in medicine—the ability to explain how results are produced can be less important than the ability to produce such results and empirically verify their accuracy. (shrink)