Every morning, Mei Yi waves goodbye to his wife and 3-year-old son and sets off for his finance job in central Beijing, riding into town by public bike share. Like most urban Chinese, the 37-year-old ...

Smartphones are, in many ways, our modern magic. In the palm of our hands, they offer a window to the world—instantly, from anywhere. With a few taps, we connect to people, ideas, and events across ...