F8 is a conference where Facebook executives talk about the future — and at Facebook, the future is flexible. In 2015, the future was video. The next year, the future was bots. The year after that, the future was augmented reality — and also a project to let you hear with your skin. All of those technologies eventually found their way into Facebook’s products, in some form — well, all except the skin hearing thing. But none really shifted the company away from its core product: an infinitely scrolling feed of updates interrupted with highly targeted advertising.
