I agree with this tip. Works great for anyone who can autodidact, and if you're good at finding and vetting resources, autodidacting got easier with the internet, and has only gotten a little harder with the proliferation of nonsense on the internet for topics that aren't hot in business or politically charged

Also, this really shows how the incentives in "education" are deeply misaligned with the way we talk about it. At least in the US, the point of education seems to be mostly gating outcomes and sorting people. Learning is incidental and game theory suggests it's better to never take a class that's truly new material for you, because getting a bad grade can harm you, but learning something new isn't captured at all