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Humans are more complex than particles because humans have brains that actively work against your systematizing of them. "I found the one perfect way to manipulate people" becomes stale and hokey to people who have seen the trick before.
Right. That's why market researchers don't pretend they have general theories; they very clearly (and cleverly) state that their research is valid for the market and strategic conditions at the time of study. Business decision-makers then use a mix of technique & judgment.
Sure but "let your sellers find the ways to manipulate your matching system and fix it afterward" really is applying general econ logic. Same concept as game designers letting the player base find the broken strategies. "People break systems, harness that."
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