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Owen Cotton-Barratt has a DPhil in pure mathematics. He has previously worked as an academic mathematician and as Director of Research at the Centre for Effective Altruism.

He additionally worked as a Research Fellow at the University of Southampton, and holds a DPhil in mathematics from the University of Oxford. His research interests are centred on methodological questions about how to make comparisons between different actions, including a focus on understanding the long-term effects of actions today.