Jason Todd first discovered his school’s secret on the internet. It was late September 2018, less than a month after high school had started. Jason was idly scrolling through his news feed on the Chinese microblogging site Weibo when he saw a trending hashtag — #ThankGodIGraduatedAlready — and clicked it.
Under the hashtag, someone had posted a photo depicting a bird’s-eye view of a classroom. Around 30 students sat at their desks, facing the blackboard. Their backpacks lay discarded at their feet. It looked like a typical Chinese classroom.
Except for the colored rectangles superimposed on each student’s face. “ID: 000010, State 1: Focused,” read a line of text in a green rectangle around the face of a student looking directly at the blackboard. “ID: 000015, State 5: Distracted,” read the text in a red rectangle — this student had buried his head in his desk drawer. A blue rectangle hovered around a girl standing behind her desk. The text read: “ID: 00001, State 3: Answering Questions.”