We live not only in a time of social and technological transition, but also of biological, evolutionary, and environmental change. It is also a time of great and growing upheaval—of societies, species, and the planet itself. Artificial intelligence has already permeated many aspects of daily life and will continue to alter the affairs of men and women, institutions, and warfare, in ways both positive and negative, beyond the lifetime of anyone reading these words.

     AI is changing how people live, work, learn, play, and interact....