A good starting point might be the latest round of anxiety about artificial intelligence, which has been stoked by some figures who I respect tremendously, including Stephen Hawking and Elon Musk. And the reason it's an interesting starting point is that it's one entry point into a knot of issues that can be understood in a lot of different ways, but it might be the right entry point for the moment, because it's the one that's resonating with people.