The Precipice

The Precipice presents a comprehensive analysis of existential risks—threats that could permanently derail human civilization or end humanity altogether. Toby Ord, a philosopher at Oxford's Future of Humanity Institute, argues that the 21st century represents a critical juncture where humanity faces unprecedented dangers from both natural sources (pandemics, asteroids, supervolcanic eruptions) and human-caused risks (nuclear war, engineered bioweapons, artificial intelligence, and climate change).

Ord introduces the concept of "the precipice"—the idea that we stand at a pivotal moment where our choices will determine whether humanity flourishes or perishes. He contends that existential risk deserves far greater attention and resources than it currently receives, and that reducing these risks should be a moral priority for humanity. The book combines scientific analysis, philosophical argument, and practical recommendations for how individuals and institutions can contribute to safeguarding humanity's future.

Published in 2020, The Precipice became influential in academic and policy circles, helping to establish existential risk as a serious field of study and shaping discussions about long-termism, AI safety, biosecurity, and global catastrophic risk mitigation.