And then when they lose they complain about the manipulations of the market and how unfair it is that some traders have so much money when they should have thought about all of those factors before they became traders and not after they became losers in the market.
On the other hand if a person reads as many books as possible about the topic, creates a strategy and then he tests that strategy against many markets and he finds out that he can earn money in the markets in the long term then that person has decided to be a winner.