The credit card companies have built trust with merchants around the world that they'll settle up eventually, and that anyone (or most people) carrying their ca

The credit card companies have built trust with merchants around the world that they'll settle up eventually, and that anyone (or most people) carrying their cards will pay their bills. If a cryptocurrency system were to try to supplant that, it'd need a form of revolving credit. I want to pay my bills at the end of the month, not immediately.