IN 2017, KEY FACEBOOK BUILDERS DISOWNED THEIR CREATION

less than a week ago, Facebook published an extraordinary statement unlike anything in its history. The company acknowledged for the first time that ordinary use of its product could be harmful. "The bad: In general, when people spend a lot of time passively consuming information — reading but not interacting with people — they report feeling worse afterward," wrote the authors, who work on Facebook's internal research team. The company added that more active use of social media, in which users trade messages and comments, "was linked to" improvements in well being.