I found two interesting points: first, last time I did an IQ test, and found most questions are just pattern recognition. So if IQ is mostly related to pattern recognition, ivy league student, who are supposed to have higher IQ, should have higher chance to be successful in trading. I have no idea if that is true. second, my daughter turned into 3 years a few days ago. when she was 2 years and 10 months, I bought her a few 100 and 150 pieces puzzles, the circular 150 puzzle from amazon: http://www.amazon.com/gp/product/B0041I4JP4/ref=oh_o04_s00_i00_details and the 100-piece rectangular puzzle: http://www.amazon.com/gp/product/B000BYNTYY/ref=oh_o05_s00_i00_details the 150-piece circular puzzle is extremely hard for me, I spent many hours and could not finish it. my daughter can do it in a few hours. for the 100-piece rectangular puzzle, she can finish in 40 min. My wife and I combined can not match the 2 years daughter on solving the puzzle. this reminds me to my last visit to a friend house. his son, is 9 years ago, was doing an IQ test. he also showed a sharp eye in identifying patterns. so the question is that pattern recognition ability is decreased with age? or is it better to train a kid to do manual trading?