Earlier this year, one of the most popular apps in China was called Are You Dead?. This was not a game, but a handy way for the many young people who live alone across the country, mostly in cities, to keep tabs on one another. Users needed to check in with the app every 48 hours by pressing a big green button. If a user did not check in, the app promptly notified a designated contact. Designed as a source of comfort to those who worry about dying alone, the app became the top paid download for