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I think it was "The Clock of the Long Now" that made the point that we have layers of society that change fast (fashion), slower (markets), slow (law) and very slowly (culture). It is a kind of onion with a fluid surface and more and more fixed interior layers. The upper layers adapt quickly to a change, the lower act as dampers. If changes go in the same direction long enough the lower layers move there too. This is far better than a society where all layers are similarly plastic since it will retain long-term information while adapting partially to short-term information. The timescales of change and how different they should be between different levels remains free parameters (that are non-obvious: their "optimal" values are highly dependent on the distribution of event timescales and what metric of success one uses).
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