I can see a blockchain used by banks to issue currencies not needing a central bank. I guess we'll see what Hayek meant when he said that banks themselves should be free without government intervention.
Amen!!! but im not 100% secure when i read the word "bank", don't know why, call me suspicious...
btw we should not forget that blockchain can be used for lot of things, not only for financial systems, in the next years we will see this technology applied to things that we will never imagine...