[throwawaymsft]

Yes, it's strange that people think stock market investing is purely a game of chance. The reasoning is typically "A winning strategy would be universally communicated, adopted, executed, and priced out." Which is a strange way to think.

Go is a popular strategy game. Strategies that work should be encoded into computer algorithms and "priced out". Yet computers can't beat the best human Go players. Are the best human Go players simply lucky: they have no true strategy, and it's chance when they win?

(Hint: not every strategy is easily encoded into a deterministic algorithm. Expert human insight and judgment, that finicky beast, is not yet replicable by machines.)