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Chess is rational, following a easily understood set of rules, and both players have perfect information. The big problem has always been analysing all future possibilities.

The stock markets are very far from a rational, perfect information game with simple rules.

If you honestly think that living a real human life, with all the concurrent decisions that are simultaneously and relentlessly made on a micro and macro level throughout every second, every day is the same as a single game of chess, then by all means, go trade the stock market and show us how it's done.

An organisation at the scale of IBM was able to create, after many attempts, and vast investment, a computer that can beat Grandmasters. That insight isn't useful to an individual trying to do the same.