Fundamental economics are nice but useless in trading. True fundamentals are always unknown. Our system allows for no intellectual capability. Some outstanding traders are quite intelligent, but a few are not. Many outstandingly intelligent people are horrible traders.
Average intelligence is enough.
Beyond that, emotional makeup is more important. Among those selected were several blackjack players, an actor, a security guard and a designer of the fantasy game Dungeons and Dragons. Dennis aimed to make money and prove the power of the training and the method. There was some experimental part to it. I took the point of view that it simply could not be taught.