The problem is the debt not the currency, which means it’s the governments that always devalue their own currency over time due to over spending causing loss of confidence in their banking system....this is history, repeated over and over again, almost unavoidable due to human nature.
What you guys are talking about is controlled growth or capping expansion. Citizens could live with a 1% or 2% growth rate or GDP a year. Banks, Corporation, power hungry elitists can’t and always try to hoard the available currency or currencies.
Precious Metals are used as a limiting factor in currency creation as they are finite compared to the capacity of a printing press.
Precious Metals used in a civilized world and food stuffs used in an uncivilized world as backing for or as a currency begets hoarding over time no matter what.
Leaving countries with there own monetary systems is the better option as money will flow from one area of the world to the next in cycles as in free markets there are booms and busts, you can’t change cycles in free markets. There are always free markets in progress using there own form of currency whatever that might be and is acceptable at the time. Most governments hate that part ‘free markets’ because trying to control a market just sends it to a black market which is another form of a free market.
Above all, whatever currency is decided upon, you need the rule of law to back a currency for confidence. Without the rule of law people will flee a currency due to the obvious uncertainties.
What's the growth rate of Social Security and Medicare payments?