Inside the AI revolution that's reshaping Chinese society

Seven-year-old Chen Jiahao has a problem sum he can't solve and he can't wait to get home from school to pose the question to his all-knowing maths tutor. His tutor is amazing, the boy says. Just snap a photograph of the question and the tutor will provide every possible approach to solve the problem, step by step – all in a split second. It is, in fact, an app that draws on artificial intelligence (AI) technology to solve challenging maths problems for primary school children. And it's just one of many AI-enabled apps Jiahao uses daily on his mother's phone.