I published 'The Future of Electronic Money - The Nation State Arms Race for Cryptofiat' which was inspired by a great podcast by Laura Shin on the subject. See here.
My brief summary of a complex topic imagines a world where Nation State issued Cryptofiat exists in conjunction with Crytocurrencies like Bitcoin, Ethererum and Hbars.
It also touches on personal identity, privacy, human rights and currency competition between States.
I hope you enjoy.