> Control systems often last decades, longer than most employees. ... > I've recently worked on a control system that is at least 30 years old. I've met many p

> Control systems often last decades, longer than most employees. ... > I've recently worked on a control system that is at least 30 years old. I've met many people who are much more than 30 years old :) And I've worked in places where people retired only after ~40+ years. And replacements are relatively easy to find, depending on the nature of the work. I think there is a reasonable debate to be had about what should be automated and what should be kept in human hands. I think we as a civilization need to sort out what the costs and opportunities are in light of the failure modes of both alternatives.