Aligning with ideal values: a proposal for anchoring AI in moral expertise

Abstract

Autonomous AI agents are increasingly required to operate in contexts where human welfare is at stake, raising the imperative for them to act in ways that are morally optimal—or at least morally permissible. The value alignment research program seeks to create “beneficial AI” by aligning AI behavior with human values (Russell in Human compatible: artificial intelligence and the problem of control, Penguin, London, 2019). In this article, we propose a method for specifying permissible outcomes for AI agents that targets ideal values via moral expertise as embodied in the collective judgments of philosophical ethicists. We defend the notion that ethicists are moral experts against several objections found in the recent literature and argue that their aggregated judgments offer the epistemically best available proxy for moral truth. We recommend a systematic study of ethicists’ judgments—using tools from social psychology and social choice theory—to guide AI agents' behavior in morally complex situations.