William MacAskill

William David MacAskill (né Crouch; born 24 March 1987) 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).

Early life and education

MacAskill was born William Crouch in 1987 and grew up in Glasgow. He was educated at Hutchesons' Grammar School in Glasgow. At the age of 15, after learning about how many people were dying as a result of AIDS, he made the decision to work towards becoming wealthy and giving away half of his money. At the age of 18, MacAskill read Peter Singer's 1972 essay "Famine, Affluence, and Morality", which motivated his philosophical and charitable interests.

MacAskill earned his BA in philosophy at Jesus College, Cambridge in 2008 and BPhil at St Edmund Hall, Oxford in 2010. He went on to be awarded a DPhil at St Anne's College, Oxford in 2014 (spending a year as a visiting student at Princeton University), supervised by John Broome and Krister Bykvist. He then took up a junior research fellowship at Emmanuel College, Cambridge, before being elected to an associate professorship at the University of Oxford in association with a Fellowship at Lincoln College, Oxford, which he left after one year.

Career

Effective altruism

In 2009, MacAskill and fellow Oxford graduate student Toby Ord co-founded the organisation Giving What We Can to encourage people to pledge to donate 10% of their income to charities "that you sincerely believe to be among the most effective at improving the lives of others".