being replaceable is a noble goal. the problem is that maybe some people don't want to be replaceable and maybe they want/seek to gain some kind of job security

being replaceable is a noble goal. the problem is that maybe some people don't want to be replaceable and maybe they want/seek to gain some kind of job security through the tooling they use, their idiosyncratic processes or just through rejection of new technology. those people are IMHO doomed to obsolescence.