I just finished The Fourth Age: Smart Robots, Conscious Computers, and the Future of Humanity, and it was one hell of a read. A lot of us are concerned about the coming of robots that arguably will be more capable than we are. This book likely will make some feel a tad more comfortable about the future, because it points out in some detail that a lot of the blue-collar jobs that supposedly would be going to these metallic false humans won't be. On the other hand, a lot of white color jobs probably won't be around for long.