If artificial general intelligence can be achieved, it will change just about everything in our world. But could it kill capitalism?

I'm not making this up. A bunch of people including some top AI researchers are adding their signatures to an open letter urging everyone to keep AI research from careening into darkness and destroying the human race. Actually the letter just says researchers should focus only on doing good things with AI, and there is a link to a document (extremely tl;dr) that outlines what some of those things might be.

Stephen Hawking sees the danger of artificial intelligence. So does Elon Musk. Oxford professor Nick Bostrom, head of the Future of Humanity Institute, has written a whole book about it. Even the scientists at Google DeepMind, who are developing artificial intelligence, seem a little spooked about it.