If alien come to earth, they will be shocked by the fact that human on earth will starve just because money printer is not working
Or maybe because it's printing too much.
Now, how could we live without money? If I go to a restaurant without money, how do I pay? Or would they feed me for free? Free beer, too?
There exists a need for regulation and centralization; the Libertarian's wet dream of decentralized EVERYTHING would fail because it would require people to act not on impulse, but for the greater good.
That borders on socialism, no? And look how successful that's been in history.