But the reason people live in communities is that because it allowes of better sharing of resources due to different roles in the society. It allows for more efficient agriculture, for example. It also allows people to focus on fields otherwise considered unnecessary or not worth the time. It allows for better allocation of resources because there can be a specialized class of people responsible for allocation of resources. It allows for higher level of technological developement because, aside from resource question, it also allows people to exchange ideas and technology more freely. It also increases mate encounter rate.
This is a completely different phenomena, one that I was not referring to, although it is a very good point too sure. More population equals more efficiency in the systems due to scale economies.
But what really rocks the boat like hell is when you have good competition. And the myriad of different countries, city states, etc. that existed in Europe in the middle ages was a constant selective pressure for imagination, technology, intelligence, economy, etc. Europe was constantly in war. That kind of pressure does foster creativity like nothing else.
The same Greek states that after that fell into decades of what could be called a civil war, only later to be annexed by more centralized powers?
Yes, exactly. I'm not saying that these states were "good", I'm saying that the competition between these states fostered an evolution unparalleled in other much more homogeneous empires. They were still pretty much fragile in their status, and were eventually anexed by the roman empire. But it is a testament to their achievements that much of the subsequent roman culture was heavily (like "dominantly") influenced by the greeks.
I am not. I only wish to know if you think the state in somewhat vague definition is a good unit of measure for this discussion.
That depends upon the scale of what we are talking about. This is like a fractal phenomena, where there is no single "unit" of measure, but lots of intermediate scales (empires, allied blocks, countries, city states, towns, movements, etc.). I was being simplistic when saying "countries", but I think the audience is sufficiently intelligent to get the hang of it.
Nevertheless, I think dividing europe in their former countries is not a bad "measure" unit for some purposes, since language was a good frontier between the peoples.