I got some interesting email regarding the group creation bit below. I think what I should have said (but didn't) was that I wasn't proposing a good method for group creation (the “a maximal set of actors where every actor is a friend of every other actor” defintion was fairly arbitrary) but just riffing on our experience that given a fairly arbitrary definition of what consitutes a group, there will usually be lots of overlapping groups and the inter-relationships of those will be messy: it is much, much messier (and harder to diagram) the larger the groups.

Aside: we are starting on creating a giant, giant, giant world map now. I like the shape of Zeeland (~600KB jpeg).

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