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Comment Not surprising (Score 1) 209

Something that takes as it's input random psychological output from many sources does well at predicting the performance of a system that takes as it's input random psychology? Makes sense, actually. The stock market isn't always governed by rational decision making. What they seem to be attempting is to cut out trying to evaluate the rationality of people's though processes, but just observing them. The danger here is that if enough people behave stupidly, this thing might enhance that through it's transactions and the resultant feedback, but that's a danger of any system.

"Stupidity, like virtue, is its own reward" -- William E. Davidsen