Well, at least the ones who can read. Except, there is no example of a person with negative return on human capital.
This is the first post of mine that doesn't in any way stand to bring more interest and liquidity to TS. But it is completely relevant to how there is such a disparity of quality among the chatters in the Pit.
UPDATE: I should share with you that, while I esteem no earthly heroes, Fischer Black ranks on my list of top guys. A good introduction to the capital asset pricing model and Black can be found here with one of his early collaborators, Jack Treynor. So, authentic traders, this segue to the world of risk will equip you in providing better liquidity to the TS markets.