Too much complicate for me and very much unreal
Divide money in two categories will not work
There is also no global money Countries has his own currencies and it has to stay like that because national currency is root of independence
Crypto is still not so much used like a money and crypto is still too young and very much controlled by miners
Crypto can't replace fiat and national currencies
By my opinion best way for crypto is to stay like a alternative money
Money is already divided but today that is happens on the end (when you purchase something).
If you are merchant, when you sell some product you add VAT - Value Added Tax on your product price.
In that moment, you divide money on your earning and state income earning.
That tax is BACK to state income (Nothing special).
All money spent from the state budget has predetermined reasons for what is spent in next fiscal year.
Included average population growth, funds for possible natural disasters, etc.
With my idea we only change time when money is divided and the side that does.
The goods and services will get a clean price.
Price forming is already a free decision from merchants.
For me this is just technical and mathematical problem.
Transparent blockchain technology can realy help for realize this.
Governments will not lose control they can still control businesses with penalties for ilicit activity.
I have not write anywhere that cryptocurrency will replace the national currencies.
We can still use cryptocurrencies in combination with national currencies.
Deflationary currency does not jeopardize inflationary currency like dollar, euro....