Zhang Qi, a ride-hailing driver based in Guangzhou, has turned to artificial intelligence this year to help his son make one of the most important decisions of his young life: choosing a university degree programme. Like millions of 18-year-olds across China, Zhang’s son recently received his university entrance exam results and had to navigate the country’s labyrinthine admissions system – choosing from thousands of programmes at hundreds of schools. Many middle-class families hire expensive...