I'll tell you what happened, because I was there when it started. It was the summer of 2049. I was sitting in the bar with my friends Harry and Luke, a bunch of us former truck drivers and hourly workers, unemployed for the rest of our lives, trying to get by on the lousy guaranteed annual income.
This is one scenario that could happen, I suppose, if we let it. Robotics could liberate us as a species to live more leisurely and productive lives. Or it could enslave us, making a very few people - who own the robots - very, very rich.