To ensure simplicity and transparency, the role of unobservable items, such as the structural deficit or potential GDP, should be limited as much as possible.
Of course, our dream is even [with] the tricycle driver, you can use your phone to pay. Of course, the most extreme case, I have never seen this but my friends who have been to China tell me that even the beggar has a QR code. We don't have to go that far.