This sounds like natural career progression (and also perhaps why some get bored doing the same thing for so long). You want to move up the lever of impact. For

This sounds like natural career progression (and also perhaps why some get bored doing the same thing for so long). You want to move up the lever of impact. For many this means applying their experience to a growing field (e.g. lots of interest in AI/etc recently) or helping other developers be more productive and not have to solve the same problems they did (e.g. growing k8s, cloud, ci tooling, new languages, etc.)