Re: "And then there’s the Digital Yuan"
"As for blockchain, could someone please tell me how that non-scalable technology is going to improve any economy whatsoever ?"
It's a distributed ledger that doesn't depend on a single potentially untrustworthy authority. Somewhere in the wide world there should be some useful applications for that sort of thing.
But I'll be damned if I can think of an example. I don't think serving as a wrapper technology for what is basically Monopoly Money is one of them.