William David MacAskill is a Scottish philosopher and author, as well as one of the originators of the effective altruism movement. He was a Research Fellow at the Global Priorities Institute at the University of Oxford, co-founded Giving What We Can, the Centre for Effective Altruism and 80,000 Hours, and is the author of Doing Good Better (2015) and What We Owe the Future (2022), and the co-author of Moral Uncertainty (2020).
