We'll pretend that tomorrow every member of the population decided to sell all their currency to buy crypto. All old currency is now worthless as everyone in the world uses crypto and not the currency of yesterday. The reason the Fed and other government groups dislike crypto at the moment is it's non-taxable. Until they have the ability to take full control of crypto they'll watch and learn. The problem with crypto is it becomes absolutely worthless without those 3 elements -- I should also have mentioned that their needs to be a device to accept payment (which would need a backup power source. Let's say you and me wanted to start a revolution, the simplest way would be to sabotage the power grid. Also, look into exploding nuclear weapons at different levels above the surface. They will EMP everything in a specific radius.