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I don't see how this shows Dunbar's number is quadratic any more than storing 150 integers in an array from which you may need to multiply random pairs later. C

I don't see how this shows Dunbar's number is quadratic any more than storing 150 integers in an array from which you may need to multiply random pairs later. Computing all 22,500* pairs would be quadratic, but I don't see (or have overlooked) a justification for this in the article. Feasibly, if your whole 150 person village had a meeting, you'd want all pairs. But then you'd also want all triplets, quartets, etc which I believe is exponential. *Technically 22,350, as you don't need self pairs

Bluestein 2y ago
> But then you'd also want all triplets, quartets, etc which I believe is exponential. This sounds like a "so-and-so acts different towards bar in front of baz" scenario.-
- o11c 2y ago
  The critical observation is that that information can be stored as part of the information of "so-and-so", since there are only a handful of exact "bar" and "baz" values (a few more are added via categories) per root person.