The runaway financial success of highly targeted pay-per-view ads has warped software design into a competition to build the most addictive digital slot machine, masquerading as social engagement. The longer we stay hooked, the more advertising we see, and the more eyeballs can be sold for a fraction of a penny apiece. This is why you get an email if you don’t sign in for a few days. This is why your apps throttle your notifications, slowly distributing the likes on your vacation photos over the course of minutes rather than seconds. It’s an elaborate manipulation to keep you coming back for more.