Under the assumption that the lifetime of such "tools" follows a power law, then the life expectancy of a currently used tool is how long it has already been ar

Under the assumption that the lifetime of such "tools" follows a power law, then the life expectancy of a currently used tool is how long it has already been around. So, from this point of view, the older the tool (editor, language, etc.) the better. Still, it may be moot for most of those tools evolve sufficiently during their lifetime that one can wonder if they remain the same. Is Emacs with modes such as org or magit really the same emacs that was used in the '90s? Would a Linux sysadmin from 2000 really feel at home with a 2022 Linux and systemd, containers and ...