In the last few years, artificial intelligence has gone from a novelty to perhaps the most influential technology we’ve ever seen. The people building AI are convinced that it will eradicate disease, turbocharge productivity, and solve climate change. It feels like we’re on the cusp of a profound societal transformation. Fifteen years ago, there was a similar wave of optimism around social media: it was going to connect the world, catalyze social movements and spur innovation. It may have done some of these things. But it also made us lonelier, angrier, and occasionally detached from reality.