"I think that, every time you see the word EBITDA, you should substitute the words "bullshit earnings. - Charlie Munger

I find it quite useful to think of a (partly) free market economy as sort of the equivalent of an ecosystem. Just as animals flourish in niches, people who specialize in some narrow niche can do very well.

tendencies, two of which are exceptionally prone to cause trouble: 1) incentive-caused bias, a natural cognitive drift toward the conclusion that what is good for the professional is good for the client and the wider civilization; and 2) man-with-a-hammer tendency, with the name taken from the proverb “To a man with only a hammer, every problem tends to look pretty much like a nail.

If, in your thinking, you rely entirely on others — often through purchase of professional advice — whenever outside a small territory of your own, you will suffer much calamity.