Artificial intelligence

“What’s missing?” the tech titan Peter Thiel asks me, over lunch on the hummingbird-infested patio of his house in the Hollywood Hills. He gestures at Los Angeles, laid out in the haze below us. “Cranes!” he explains. Thiel has argued for years that America has done most of its innovation in digital “bits” instead of physical “atoms” because bureaucracy, regulation and environmentalism have got in the way of the latter. While software has exploded, transport and infrastructure have stagnated. But over the next few days in Austin, Texas, and around San Francisco Bay, I see evidence this is changing. Traveling with the upbeat co-founders of the Rational Optimist Society, Stephen

We will need well-trained natural brains if we are to keep the artificial brains we have created under control