Hilary Greaves

Hilary Greaves (born 1978) is a British philosopher, currently serving as professor of philosophy at the University of Oxford. From 2017 to 2022, she was the founding director of the Global Priorities Institute, a research centre for effective altruism at the university supported by the Open Philanthropy Project.

Education
Greaves earned a BA in philosophy and physics from the University of Oxford in 2003, and a PhD in philosophy from Rutgers in 2008. Her doctoral thesis was titled Spacetime Symmetries and the CPT Theorem and was supervised by Frank Arntzenius. She has held appointments at Merton College and Somerville College and, since 2016, has been a professor of philosophy at Oxford.

Research
Greaves' current work is on issues related to effective altruism, particularly in connection to global prioritisation. Her research interests include moral philosophy (including foundational issues in consequentialism, interpersonal aggregation, population ethics, and moral uncertainty), formal epistemology, and the philosophy of physics, particularly quantum mechanics.

In October 2022, she was featured in Vox's Future Perfect 50 for her work on longtermism. She has argued that, just as geographical distance should make no difference to how important it is to alleviate a person's suffering (to the extent that one is able to), temporal distance is likewise morally irrelevant. Greaves has defended her longtermist position in terms of both utilitarian outcomes and intergenerational justice.

Books

 * Greaves, Hilary, and Theron Pummer (eds). Effective Altruism: Philosophical Issues. Oxford University Press, 2019. ISBN 9780192578303

Peer-reviewed articles

 * Greaves, Hilary. 2013. "Epistemic Decision Theory". Mind. 122, no. 488: 915-952.
 * Greaves, Hilary, and David Wallace. 2006. "Justifying conditionalization: Conditionalization maximizes expected epistemic utility". Mind. 115, no. 459: 607-631.
 * Greaves, Hilary. 2010. "Towards a Geometrical Understanding of the CPT Theorem". The British Journal for the Philosophy of Science. 61, no. 1: 27–50. (Winner of the James T. Cushing Memorial Prize in History and Philosophy of Physics. )