Fiat will be always fiat, this means that people does trust into it and they use it in the daily needs, this is something that wont change, the way thats is managed its the only problem. Governement does all transactions without expose them, if they have lets say blockchain technology, to trace all the money it would be the best way to know our money is being invested for the future and not the politicians accounts, this wont change since politicians does wanna to earn in 4 years what a worker earns into 30-50 years of work.
I do hope in the future we can see all the transactions and companies as well for what the money has been spent, since part of those belongs to our salary, nothing more fair then to know where those money is going.
To sum up this block of text, he's saying that he's hoping that fiat will be transparent so we know that our money is going to investments and not in the pockets of politicians.
I doubt that it will happen since there would be small payments and I think it's not even important. There would always be people buying in stores. For example, if you bought a banana with fiat, would it be beneficial to the whole country that there's a transparent record for that? I think the main reason why blockchain has a transparent records because it's happening on the internet and they can easily create a program that makes a logs of the transactions for each address.