For me countries don't exist anymore or are an illusion of the state. How can it when borderless money is available? Mini Citadels are the future.
Discussion
Damn right, rebuild the castles.
I totally see a world of citadels, from single discreet buildings in the midst of urban social credit dystopia, to estates, regions, even one or two countries. We're going to need to be able to move freely between them too, wherever they are in the world.