[lotsofmangos]

I don't think that tribalism is going away, but it is becoming less geographical. You used to be able to identify groups by location, but that is getting a lot more fractured by global communication networks.

This is also interesting from a defense perspective as it means that area-weapons get less effective when the people you are trying to attack are no longer conveniently located in one spot. Things like nukes, for instance, are completely ineffective if your target is scattered throughout another population. I suspect that one of the main outrages of war in the 21st century will be from saturating an area with close-quarter drones with instructions to target a section of a population, rather than the bombing of whole cities.