>the Board has reduced reserve requirement ratios to zero percent effective on March 26, the beginning of the next reserve maintenance period. This action eliminates reserve requirements for thousands of depository institutions and will help to support lending to households and businesses.
I gave you Liquity as an example. They don't have "books", it's a smart contract which takes ETH as a collateral and lets ppl to borrow LUSD against it.
Maker initially worked same way, but eventually they started accepting off-chain collateral.
> The only way to bring stability to the bizarro world of crypto is by tying it to "fiat"
False. It's possible to make stable-coins using just price oracle and collateral. "Fiat" is not necessary. E.g. https://www.liquity.org/bold