I hear echoes of myself here. I made it a goal to learn enough about compilers because they were cool, and also to try to escape the thermocline of quality that I saw that was pervasive in industry. The hope was I could build skills in something that isn't easily commoditized. I was somewhat successful: I've worked on some nifty and difficult things, learning a lot of CS along the way.

However, the risk of burnout still exists, but this time, from overwork, because there is essentially an unbounded amount of work that could be done. Additionally, my career growth at my current place is probably stalled out unless I want to do substantially less tech work. This occurs because they have a lot of people who've amassed a lot of specialized expertise, so technical skill is commonplace.

Ultimately, I arrived in a spot in my career that isn't terribly different from most people, despite the amount of work and time put into trying to break away from that. I don't regret it, but there is a sense of wondering whether it was really worth it if my progression, pay, and everything else follows the same age-gated gradient that is prevalent in industry.