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Sounds like AP Microeconomics in perfect competition Moogy. Each firm is insignificant to the big picture. No one could ever make a change to the rest.

It is off topic, but it is neat to see that the same theory can be altered to be used for something completely different. Humans have a habit and they almost never change it do they. Then change becomes a habit somehow and then it keeps changing. People always seem to follow the norm without even knowing it.