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He's a smart guy - and much better at math than I am. I have no doubt he has the intelligence and ability to be a winning player. But some people are just not cut out for gambling.

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[anecdote] I played with a guy who would often fold AK before the flop, because it had "no potential to turn into a big hand". [/anecdote]

I think a player starting out tight and less gambling-oriented has potential to do better than players who are gamblers by nature and must work to tighten up and get a grip and their emotions.