Unpopular opinion.
Since stablecoins solve most of the problems that Bitcoin solves but without the volatility I suspect they will take over for quite some time.
The network effect will favour USD-stablecoins (USD-SC) at the expense of all other currencies.
I suspect this will lead to an expensive deflationary USD and all other (alt)-currencies going quickly to zero. Despite manic printing of USD by the Fed.
Maybe the state in e. g. Europe-Russia-China can stop this by force, but I am not sure. For sure the US will like it highly despite some controlproblems.
Thoughts?
PS I know perfectly well that SCs has many problems. Inflation, censorship, problematic blockchains, centralisation, ... . But most people don't care about this. DS