Not directly related to facebook's libra but why don't we see more businesses use bitcoin, monero, etc. as a backup currency? I mean they could allow transactions to happen with cryptocurrency and have linked to a stable currency in the backend to be exchanged.<p>It wouldn't be a bad idea to have a 'backup' decentralized currency in an event of mass inflation. For example, the US is projected to go into a $30 trillion dollar deficit by 2030 and there's no telling what ramifications that will have.