Earlier quoted context omitted.
A direct representation of this can be found in law. Countries start out with simple laws, then as society gets more complex the laws become substantially more complex as well, to the point where tax codes, private and criminal law are no longer wholly comprehensible by any single individual. It shouldn't be a surprise that societies collapse though, everything has a life-cycle, even stars and the universe as a whole…
it would be extremely surprising if something as simple as an organization made up of fragile humans would manage to last longer than say a millennium or so. Would it? In 868, the County of Portucale was created; in 1143 it became independent, with Vimaranes as its capital. Nowadays, Portugal is still around and Guimarães is still an important city, and while it certainly has its problems, I don't think it's in any d…
It is much the same for countries, who die and reform in approximately the same geographic location and keep the name to preserve the illusion of continuity. Portugal's history is far from free of such reformations, civil wars, etc...