I see this as akin to how factory work has changed with modernization. In a modern highly automated factory you need a much smaller number of highly specialized

I see this as akin to how factory work has changed with modernization. In a modern highly automated factory you need a much smaller number of highly specialized engineers to maintain the robots. In the analogy, these fewer highly specialized engineers are analogous to the ones who need to know understand TCP/IP in depth and now run AWS. The rest of the workers, now replaced by robots, can move on to different productive work.