I wonder if our ancestors in Africa had borders.\I wonder if the reason they left was climatic or because some of them got thrown out with all the walls and fences being created by others;.\though in that time it would have been walls of spears and threats.
And I wonder if actually federalism and the loss of borders is going back to what we were. To a time when all we feared was not being friends with the people we met on our travels. War changed us into fearful animals eventually giving us countries and then in recent history, papers and passports.
International trade today is war by peaceful means. Such a tragedy.