It’s like an episode of Black Mirror - Imagine a world where - one day - without notice - you were cut off from buying a plane ticket or blacklisted from the train - because you didn’t meet your country’s social etiquette standards. That’s the reality now for many people in China, through the country’s pervasive ‘social credit score’ system - where people are rewarded for good behaviour - and punished for poor conduct. Beijing correspondent with the Globe and Mail - Nathan VanderKlippe - takes us through the sweeping digital system designed to keep track of its citizens.