Easy peasy, since I get to choose the time frames. Any society that has ever existed upon a gold standard, prior to that same society's move towards currency debasement. You're getting your cause and effect wrong, The Roman Empire didn't collapse because they used a deflationary currency (gold, silver, salt, nails) they debased that same deflationary currency because they were in the process of multi-generational collapse.
So predictable: the infamous libertarian rewriting of roman history. Here is some the other side of roman coin:
http://socialdemocracy21stcentury.blogspot.be/2011/06/debt-deflationary-crisis-in-late-roman.htmlMoney is simply a tool.
There is no arguing that: It just seems you want our society to use a tool that works for
you; I will buy such tools myself and prefer society uses a tool that works for society.