Oh yeah, a proper great power could snuff out Bitcoin, to say nothing of the smaller coins, if they put their mind to it. If there's a real non-bubble use case

Oh yeah, a proper great power could snuff out Bitcoin, to say nothing of the smaller coins, if they put their mind to it. If there's a real non-bubble use case, it will have to be around making a bad but much less expensive version of something that's already possible offline, but that requires lots of lawyers to set up.