What's sad is how we often hate and discourage innovation because it kills jobs. If you become more efficient, it often means you do the same amount of work with less workers. If we stick to our current economic/political systems, we could never get to a point to where machines do almost everything. We would all be homeless. Politicians say there would be plenty of "thinking" jobs that computers can't do, but I just don't see it. If you took away every manual labor job in the world, I don't think we could think up enough things for people to do, and what company is going to hire them?
This is something we definately need to figure out soon though. It could be the solution to our class systems as we know it.