The idea is that when customers know a bank has effectively an unlimited line of credit to pay for outflows that there is no reason to panic. Conceptually, the

The idea is that when customers know a bank has effectively an unlimited line of credit to pay for outflows that there is no reason to panic. Conceptually, the credit line works perfectly even if it's never used. I agree it's not a solution, but it's smart and effective stopgap measure.