Try scaling that model the whole world. How do you get some random country to join it? The costs of maintaining all that regulation framework are astronomical a

Try scaling that model the whole world. How do you get some random country to join it? The costs of maintaining all that regulation framework are astronomical and depend on political circumstances that might change quite quickly (Brexit for an instance). There's just no way that the whole world will have something like that in the next 25 years. So, if you love your banking system, don't switch to bitcoin. It doesn't mean blockchain doesn't have any value for other people/use cases.