We need to move away from central banking and government-controlled fiat currency.
We need to move to physical-backed currency, as well as government-free or non-governmental currency.
Cryptocurrencies fulfill the ability to cross borders without surrendering all of our value to the whims of customs officials. Precious metals allow "store of value" requirements. It is unknown if cryptocurrencies will fulfill the same requirement over long amounts of time. Are we seeing a change here, similar to the change between the printed book and the Internet?