I just finished reading a book that explained to me that my desire for a strong middle class is a futile wish. This segment of society will diminish as technology replaces the more mundane jobs and tasks within those jobs, including writing scientific theories(!) and even teaching. This is already happening with computers collecting and analyzing data for everything from how our blood reacts to drugs to how a product can sell to the why of the disappearance of some esoteric insect. We just need a handful of people to understand the data that drives an answer. All that will be needed is about 10% in each profession to be the bridge between the computer and man or the designer and tinkerer of technology. But since these, about 10%to 15%, will be very well paid, the upper class will grow.
The disappearance of jobs means competition will be fierce and the victory will go to the focused and very smart students who understand the technology, those students for whom numbers are a fascinating puzzle, those who like cyphers. Robots can replace all the low end jobs and even things that are not supposed to be jobs such as sex. The poor class will grow larger.
Then the author goes on to say that there will be no class revolution. The poor will have lots of cheap food, cheap entertainment and cheap housing to numb them. They will accept that this is their lot in life. They will not be the beneficiaries of cheap health care, though. Since it is paid for by others, it will be parceled out even more judiciously and sparingly. I am not saying I agree with this, just reporting on what was written.
The book is titled "Average is Over" by Tyler Cowen, recommended to me by our financial adviser, who should be most worried about his job with the growth of the use of computers to crunch numbers....
P.S. This view neglects the importance of creative thought and creativity in all the art forms that we love.