Scrolling through short videos, I just told a friend I want to buy a pair of running shoes, and the next second, the homepage is full of sports brand ads. I marvel at how well the algorithm knows me. My friend said, "Then try shouting 'I want a raise' at your phone now." I did as instructed. On the third day, my phone pushed a notification: "Nearby construction sites are hiring laborers, 300 yuan daily."