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Moral Uncertainty

William MacAskill, Krister Bykvist, and Toby Ord


Very often, we’re uncertain about what we ought, morally, to do. We don’t know how to weigh the interests of animals against humans, or how strong our duties are to improve the lives of distant strangers, or how to think about the ethics of bringing new people into existence. But we still need to act. So how should we make decisions in the face of such uncertainty? Though economists and philosophers have extensively studied the issue of decision-making in the face of uncertainty about matters of fact, the question of decision-making given fundamental moral uncertainty has been neglected. In th ... More

Keywords: moral uncertainty, ethics, decision theory

Bibliographic Information

Print publication date: 2020 Print ISBN-13: 9780198722274
Published to Oxford Scholarship Online: October 2020 DOI:10.1093/oso/9780198722274.001.0001


Affiliations are at time of print publication.

William MacAskill, author
Associate Professor of Philosophy, University of Oxford

Krister Bykvist, author
Professor in Practical Philosophy, Stockholm University

Toby Ord, author
Research Fellow, Future of Humanity Institute, University of Oxford