Ever had a song stuck in your head long after the music stopped? Or found yourself replaying an argument—what you said, what you wish you had said, or how it might unfold next time? These mental loops ...

What joy do you have left in your life? That is the question I often hear after telling people that I, once a columnist on ...

Forbes contributors publish independent expert analyses and insights. I write about the big picture of artificial intelligence. It is not possible to understand the long-term future of artificial ...