> (no need to print new bills at great expense) This is not how modern money supply works. The M2 has increased massively, and the number of new bills in circu

> (no need to print new bills at great expense) This is not how modern money supply works. The M2 has increased massively, and the number of new bills in circulation will not change materially. Currency is already digital. And sometimes we use physical paper to represent it.