But to ask the obvious question: why does El Salvador need Bitcoin to do it? It’s not clear to me that the settlement system laid out in TFA necessitates a cryptocurrency scheme, since it all boils down to a locally denominated network of ATMs. Is there some technical reason for this that I’m missing? Without one, it feels like burning tires to accomplish a financial task that any non-failed state (certainly one that can roll out apps and ATMs) should be able to accomplish with ordinary means.