On the logic of nationalism

[Ryantology]

My tribe is good, others are bad? Where did you come up with that. It is more like my tribe is my tribe, your tribe is your tribe. Would you like to trade goods? Would you like to share knowledge? You may come into my tribe as a guest but you will not share the same rights and privileges as the people of my tribe, but you are welcome to live among us if you follow our values, language, culture and so forth. If you commit a crime you will be imprisoned and deported..

And that's why your kinds of tribes are always, eventually, culturally assimilated by tribes that aren't so restrictive and backwards. You'll bleed away your talent to outsiders and your system is designed to prevent the absorption of talent from outsiders. The only way you can prevent that is inventing reasons to convince your tribe that the other tribe is bad and inferior in some stupid and arbitrary way, which is only putting a band-aid on a severed limb.

As communications and ease of travel persist, cultures will mingle and form a new melange. It's been happening for centuries. Nationalism is dying and nothing's going to stop that in the long run. Eventually, every 'tribe' will have their ideas put to the test against the outside world, and the ones that can't cut it will lose and be absorbed. The useful parts of your culture will belong to the outside world and the rest will be discarded.