You have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.Terence Tao's celebrated status has made him an unofficial spokesman for mathematics, a job that for now is consuming most of his time.Credit...Ariana Drehsler for The New York TimesWhy One of the World’s Greatest Mathematicians Is on a ‘War Footing’The Fields Medalist Terence Tao is on the front lines of a debate about artificial intelligence and the futur...