Toby Ord is a philosopher at Oxford University, working on the big picture questions facing humanity. His earlier work explored the ethics of global poverty, leading him to make a lifelong pledge to donate 10% of his income to the most effective charities helping improve the world. He created a society, Giving What We Can, for people to join this mission, and together its members have pledged over $1.5 billion. He then broadened these ideas by co-founding the Effective Altruism movement in which thousands of people are using reason and evidence to help the lives of others as much as possible. His current research is on risks that threaten human extinction or the permanent collapse of civilization, and on how to safeguard humanity through these dangers, which he considers to be among the most pressing and neglected issues we face. Toby has advised the World Health Organization, the World Bank, the World Economic Forum, the US National Intelligence Council, and the UK Prime Minister's Office.