Empty consumerism and soulless government are the traditional two explanations for our modern alienation. These days, there is a brand-new one: tech. The tech revolution promised us our heart’s desires: everything you want to know at the click of a mouse; the ability to become famous to strangers; anything you want to buy, delivered to your door in days without you having to leave home. But our happiness has not increased as a result — on the contrary. Mounting evidence shows that media and technology use predict deleterious psychological and physiological outcomes, especially among young people.