So I'm 20 and I've started looking at the salaries of jobs/careers, and this is the impression I've gotten. Like that you could spend years cramming a ton of knowledge about a very niche field, and still only get 2-3x what a run-of-the-mill job makes. Is this true? If yes then I guess this route to wealth would only make sense (due to the diminishing returns) if the topic truly spoke to you, right? Are there alternative career paths to good pay than being really good at something really specific?
Nassim Nicholas Taleb talks about this when he explains his own career. He realized the amount of effort he had in him was never going to change, so he wanted a field where earnings weren't limited by his own effort - the dream of passive income. He became an expert on risk and a well known writer. https://en.m.wikipedia.org/wiki/Nassim_Nicholas_Taleb
Good recommendation.
Nassim Nicholas Taleb also has a bunch of useful writing on taking risks that applies very well to financial choices like investments and career choice.