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Traditions and customs are Systems. 

"Much of what is distinctive about human thought and reason may be best explained by the operation of what is called ‘cultural ecosystems operating at large spatial and temporal scales’. Within such ecosystems slowly evolve culturally transmitted practices sculpt the very worlds within which neural prediction error minimization occurs….There is a downside of course. The downside is that these culturally mediated processes also incur costs in the form of various kinds of path dependence. They may then become frozen, much like the standard keyboard or the Betamax format." 

Clark, Andy. Surfing Uncertainty: Prediction, Action, and the Embodied Mind. United Kingdom, Oxford University Press, 2016. (p. 280)

https://www.google.com/books/edition/Surfing_Uncertainty/Yoh2CgAAQBAJ?hl=en&gbpv=0