When China’s tech bro superstar went home for Spring Festival, it was as if Paul McCartney had returned to Liverpool or a soldier was back from the war, decorated with medals. Crowds surrounded his house. A police Swat team was on hand in case of disturbance.Miss He, a schoolteacher who had driven from her home 45 minutes away, said: “We were all there standing outside, trying to catch a glimpse as he ate dinner. Lots of parents took their children, hoping to encourage them to follow in his foot...