[bounded_agent]

I feel like you're arguing there's an efficient market of advice - any advice that can be widely understood has already been turned into money, and also there's a limited supply of money to go around so no advice can raise all boats.

I disagree on both counts. To use an overly relevant analogy, the market is not so efficient that successful startups cannot be built (and planned in advance of becoming successful), and it is possible for everyone in the world to become more competent and skilled and for this to just make everything better (e.g. better products for everyone).

You can have new insights that are generally true, and everything isn't zero sum.