[JumpCrisscross]

> [Bitcoin] is the first currency that is entirely digital, which before bitcoin wasn't possible

It is absolutely possible. Sweden is close to achieving it [1]. The hurdle isn't technological. People like physical cash. Consider the shitstorm that would erupt in America if the Treasury announced it would stop printing and minting physical currency.

> it's still a very interesting technological development

I agree.

[1] https://www.theguardian.com/business/2016/jun/04/sweden-cash...

[tenaciousDaniel]

Fair enough, although "entirely digital" has broader implications than whether the currency itself is physical. It's more that the backing of the currency is digital. In Sweden's case, the backing is still the government. And there are physical representations of crypto in the form of QR codes and such.