Can digital currencies like Libra ever replace the dollar

A banknote (often known as a bill (in the US), paper money, or simply a note) is a type of negotiable promissory note, made by a bank or other licensed authority, payable to the bearer on demand. Banknotes were originally issued by commercial banks, which were legally required to redeem the notes for legal tender (usually gold or silver coin) when presented to the chief cashier of the originating bank. These commercial banknotes only traded at face value in the market served by the issuing bank.^[1] Commercial banknotes have primarily been replaced by national banknotes issued by central banks or monetary authorities.

Label = Digital Money