Earlier quoted context omitted.
>Anyone who espouses cultural purity is simply ignorant of culture. There's a difference between gradual assimilation of cultural elements over hundreds of years, and flooding a country with change on the scale of a generation. It's perfectly reasonable to want to preserve what amounts to a cultural identity by limiting cultural influx. >Anyone who espouses cultural purity is simply ignorant of culture Nonsense. The…
The ancestral post of this thread is bemoaning supposed cultural deracination in Japan because of changes to immigration policy. It is hysterical to presume that the Japanese are about to flood their country "with change on the scale of a generation". > does not mean that it is not itself pure By what metric is a culture pure? How can information be pure? How far back in the timeline do you want to gauge purity? And…
By the degree to which it has uniquely evolved in relative isolation.
>How can information be pure?
By the degree to which the combination of information that defines a particular culture is unique. Again, if we model culture as a linear combination of cultural traits, purity may be measured as, for example, euclidean distance between clusters, reflecting unique developments that occur as a function of isolation. As an extreme case, compare an undiscovered tribe in the Amazon, or the Amish, to a cosmopolitan population like residents of New York City.