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How large can a social group with a given level of homogeneity get while maintaining that specific pattern of homogeneity? Has anyone studied this? Trivial example: If “Chinese” is your measure of homogeneity you too out at say 1.5b. Can’t have a 3b group of Chinese people.
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The subtler the features you care about in defining homogeneity, the smaller the scale band. In the limit, the group is immutable. Adding or (more subtly) dropping a single individual breaks it.
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I think this happens across volume of people (community size), temporal space (over time), and comms surfaces (interaction length). So community can be huge if temporal space and comms surface is narrow - even when extremely nuanced.
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In person, TV channel, direct message, group chat, discord, etc. Count how many different channels are being used, like fragmentation. Dunno - my intuition is that it's hard to keep same interpretation of message across multiple channels of comms.
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