Earlier quoted context omitted.
How do you pay for digital goods with cash? Are you suggesting that every single online business that exists should have a mailing address to mail cash or checks, and have people to process them? I imagine that you pay for software in some form, as an example of a digital good. Do we need to go back to burning CDs and buying software in physical stores with physical money? Reject it all you want, but there is no goin…
All of these scenarios can be addressed with a fungible cryptocurrency.
But it is important that these fungible cryptocurrencies are as cash-like as possible. So, no global ledger.