The cable-cut might work for a while, but it wouldn't take too long for partition tolerant crypos emerge. You don't really need global consistency for most things, given that resources tend to be local.
Wouldn’t it? This is an unsolved problem and there is nothing that implies it can ‘quickly emerge’.
One of the paradoxes about crypto is that all problems with it can be quickly solved in the future, but somehow continue to exist in the present.
The plan isn't fully fleshed out: you still need to incentivize running nodes and handle cases where bad behavior on the part of node maintainers becomes transparent so that users can revoke trust in them, but my point is that this is not some blind faith in the ability of the community to adapt, but rather something that I have diagrams on my whiteboard for.
I don't see any crypto zealot laying cables in the ocean to connect Europe and USA
do you really think the army would allow it?
but cutting cables is the nuclear option, I see much more probable that terrorists will try it in the future, because is such a fundamental weakness of the internet right now
a government would simply block crypto traffic