Gotta love how libertarians keep blabbing about "fiat currencies" and how the currencies can collapse "at any time". While technically true, currencies collapsed under gold standards, and probably at a rate faster than what you see in today's economy. What folks don't seem to understand is that money has no value in and of itself, but is based on a population's ability to produce goods and services. Whether you use bitcoins, greenbacks, electrons on a hard drive or gold doesn't change this truth.
By definition, money is simply a means of exchange... tying it to an arbitrary material is silly. In the old days, countries manipulated currencies through artificial means and like today when those means run their course, bad things happen.
So, gold, paper or electrons, a country's prosperity is tied to the competence of its government. While this is a scary fact, it is the truth.