I know what money is, it's a commodity that people are prepared...

I know what money is, it's a commodity that people are prepared to accept for an exchange. At the moment the world is still accepting the US$, however my Nth Korean example is a sound one; there is no limit to the issue, and Nth Korea and the US can print as much as they like.

The blockchain does not have these problems.

People used to accept Buckskins and Scottish Pounds, the $US will go the same way