...
The crypto-currency volatility doesn't make it unsuitable as currency; it just made crypto-currency unsuitable as fiscal value-storage medium.
...
As someone else alluded prior to this thread, anyone that lived through the hell of inflation years in the 80's in the peripheral economies knows that by heart - by then, US Dollars were the anchor of the economy, not the local fiat currency. The difference back then is that, due to the lack of internet and electronically automated pricing mechanisms, the devaluation of the local currencies were done in human speed, not multi-GHz speed. In other words, price tags on supermarkets were manually updated at the speed of the operator of the tag machine, not in a database where a UPC barcode could enable a price change between picking up the product in the shelf and paying at the cashier (despite this, it was not uncommon to see four, five price tags piled on top of each other as the days went by with unsold products).
...
...
I too lived the hellish inflation of the 80's, but that started not in the 80's but in 1976. 1980 was the change in policy (from Carter to Reagan) and it took a long while to recover. During the Carter years, a new "pain index" was invented: unemployment rate plus inflation rate. It was awful time, high unemployment, high inflation.
I agree with the "US Dollars were the anchor of the economy" part but I disagree with "not the local fiat currency." It was a fiat currency, but used by other locality (nations) because of USA's then very good fiscal reputation. US Dollar start to deviate from the Gold Standard in 1933. Per US Federal Reserve, the care-taker of US Dollar, in 1971, USA official abandoned the Gold Standard
[1] thus making US Dollar is a fiat currency.
While it became a fiat currency, USA regained its credibility and the green-back continued to be accepted as a world wide currency solely on the USA's reputation. Reputation must be earned, and can be lost. We are introducing a lot of measures that is inflationary in the last couple of decades. Hard to imagine, gold was merely $35 an ounce when we came off the gold standard. When I first posted gold price two days ago (Dec 29), it was $1805 an ounce. Today (Dec 31), two days later, now is USD is $1831/ounce. This is a 1.4% drop in value for the USD in two days.
One can speculate in anything: stocks, paper currencies, live-stocks, and even crypto-currencies. One can also make money whether the instrument of speculation go up or go down.
Crypto-currency speculation is in it's infancy. Stock on the other hand very developed as a speculative tool making it far more suitable for speculation. Gold would have been a good "value storage medium" but of course governments will do everything possible to make it difficult to invest in Gold. In the now defunct Obama Care (socialized medical care plan that Obama said he didn't mind it being called Obama Care), one must report Gold purchase > $600
[2]. Why would that be a medical issue is anyone's guess. I suppose the more people invest in Gold, fiat money's value decrease is more visible, and he would need to inflate the dollar supply quite a bit to made his plan work.
Reference:
[1] Federal Reserve History: "Nixon Ends Convertibility of U.S. Dollars to Gold and Announces Wage/Price Controls"
https://www.federalreservehistory.org/essays/gold-convertibility-ends[2] New Max magazine: "New Tax on Gold Is Hidden in Obamacare"
https://www.newsmax.com/Finance/StreetTalk/New-Tax-Gold-Hidden-Obamacare-healthcare/2010/07/21/id/365283/