Most jobs can be automated or be done more efficiently through automation. In computer jargon, gates are cheaper than humans, unless one is a human named Gates.
This has been true through most of human civilization. Machines has increased the amount work that a human could do, and with power production amplified it. With electronics we code the actual human knowledge so that less skilled workers can actually approximate the output of a more skilled worker. This has been actually been since the advent of the Jacquard Loom.
In any case, another thing that has been happening since electricity is that work hours has been decreasing for many people. Many people work less than 40 hours a week because the level of technology and kind of work they do makes that a optimal time to work. So we are at a time when we really need to make wages so that 30 hours a week provides a basic income. This is how we create jobs. Part of that is going to be an $11 a hour minimum wage.