Well, permissionless transactions is the exact thing that is not going to happen in scale. With cash, you are required to deanonymize transactions unless they'r

Well, permissionless transactions is the exact thing that is not going to happen in scale. With cash, you are required to deanonymize transactions unless they're small (<10k USD), and with the recently passed infrastructure bill changes to 6050I, the same would apply to cryptocurrencies. In effect there would be a bifurcation - you can either have permissionless transactions, or you can interact with the real world; since all the legitimate businesses and law-abiding people would have to avoid the "permissionless" system unless they can break the anonymity of the transaction and verify that any required filters have been applied.