The Rise of the Nation-State

‪Given our primal tribalism, city-states make a whole lot more sense as a political unit than these far flung nation-states of today. ‬

The internet somewhat countermands this, but I care for my local community and not at all for BFE upper nowheresville or lower burbistan. 
Central governments have broader reach and more avenues of control than ever before and there are significant advantages to nation-scale so I don’t see going back to pre modern times at any point in my lifetime unless central authority entirely breaks down.