It starts as a mindset, and then comes the midlife apathy. You get tired of watching the same ideas turn into the same mistakes. You start pounding the table about maintainability and just want them to stop bloating the dependency tree on frivolous shit, like saving a few keystrokes per test.

You wish you would have taken some hobbies more seriously, but you realize mastery would be impossible, given how much otherwise spare time was spent working.