“The root problem with conventional currency is all the trust that’s required to make it work. The central bank must be trusted not to debase the currency, but the history of fiat currencies is full of breaches of that trust. Banks must be trusted to hold our money and transfer it electronically, but they lend it out in waves of credit bubbles with barely a fraction in reserve.” - Satoshi Nakamoto In other words, only on-chain transactions are transfers of money. Anything built on top of that which requires trust is just building the same existing system all over again.