New Delhi, Feb. 7 -- What is the role of an artist in contemporary times? "As an artist, as an individual, you have to defend what you believe, right? Because that is exactly the kind of work that would help human society," says Ai Weiwei, the Chinese artist who has, through his works, addressed some of the most pressing issues of our times: the excesses of authoritarianism, global migration, and artificial intelligence.P9...