So? As usual, the adaptive path is indirect. It's about neither curtailing currency hoarding, nor attempting to stabilize the value of currencies whose Fx & buying power must float. More directly, it's really about maintaining adequately distributed buying power for all citizens.
There are 2 approaches to solving this, and we're stuck in gridlock on the first one.
1) Stop the useless hoarding of currency that's already fiat? How?
(We've been at that for 100 years. Existing regulatory costs BY THEMSELVES don't scale, so we keep returning to the lunacy of suggesting no regulation at all! Something additional is called for. Besides, it's a bit silly to worry about running out of fiat. Which matters more, how much fiat someone steals, or what they can buy with it?)
2) Stop letting currency hoarders scare everyone into not replacing needed currency when & an as needed.
Those hoarding fiat are the same people who lobby most strongly to NOT let the buying power of their hoarded currency fall. They are the "Deficit Terrorists." In contrast, if enough buying power was always distributed so as to let workers efficiently consume what they are capable of producing, then:
a) excessive hoarding of currency would be self defeating;
(peak value would be in hoarding coordination capabilities, not depreciating paper;
hoard access to dynamic, not static value)
b) unemployment would not be a factor;
c) entire populations could continuously explore their options, instead of stagnating;
d) we would divert less attention to investigating, prosecuting & incarcerating currency hoarders.
If a bunch of dumb cells can make a functioning human body, then why can't a bunch of supposedly smart humans make a functioning national economy?
This ain't rocket science, by any stretch of the imagination. It's simple system dynamics.
Any systems or circuit engineer could make it work - if given a chance.