Will MacAskill, Associate Professor in Philosophy and Research Fellow at the Global Priorities Institute, University of Oxford. Will's academic research focuses on the fundamentals of effective altruism - the use of evidence and reason to help others as much as possible with our time and money - with a particular concentration on how to act given moral uncertainty.
 
I've co-founded 80,000 Hours, a YCombinator-backed non-profit that provides research and advice on how you can best make a difference with your career, and Giving What We Can, a global community of effective givers that is best known for The Giving What We Can Pledge to give 10% of lifetime income to the most effective charities. I am also the author of Doing Good Better, Moral Uncertainty, and What We Owe The Future.