That change was from one type of human labor to another. Moving from human labor to machine labor is not going to be accompanied by increases in human labor. The losses of labor might be somewhat mitigated by new jobs in robotics and computers, but the whole point of automation is that it lowers the need for costly labor. Look at the industries that are heavily switching to robotics already, like ports. The longshoremen jobs being lost are not being replaced by the production and maintenance jobs for robotics.