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Saying there is "no relationship whatsoever between... trading performance.... and... cognitive skills" and then concluding that "trading success correlates with strategic thinking" is a blatant contradiction. Claiming on the one hand that IQ doesn't matter, and then turning around to say strategic thinking capacity is an asset, makes no sense. An individual with outlier-level ability to engage in strategic thinking has a significantly above average intelligence by definition, at minimum in that one area if not generally, which also fits the observation that there are many different types of intelligence. Either way, it's kind of silly to imply that being smart has no advantage and to then extol an edge that, on balance, is far more likely to show up in smart people. Cognitive egalitarianism in trading is akin to arguing that height doesn't matter in basketball. Being six-foot-eight doesn't mean you're an NBA candidate, but it sure as heck improves the odds.

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