Is There a Trade-Off to Cryptocurrency?

The idea is that like credit provides that elasticity to an economy. Now does that need to come directly through a monetary issuance? Because credit doesn't have to be hard of money. And the trade off to all this is, and here's the huge theoretical debate. If you were to have private credit respond in that situation, it could help them immediately issue fiduciary media as opposed to just extending private credit. But I'm not really certain whether or not that actually is trivial yet.