See:
There Is No Escaping History. Fiat Currency Eventually Fails.
Notice that this is a critique of fiat money -- not a critique of state-issued money under a gold/silver or other standard. Fiat money is a rare occurrence in modern history. (We live in strange times!) As we can see, the examples found by the author are a small number of short periods here and there.
I have my own critique of gold/silver standards, but that's another issue.
I think as soon as we went off the gold standard in the 1970s the system was doomed to fail. This experiment will inevitably fail. Printing off money through quantitative easing is a short term fix to a long term problem!