Comment by sippingjippers

I'm fairly noobish at understanding all this stuff, but as I understand it there are severe structural issues with the existing banking system that make a completely new mechanism desirable. For example by depositing cash into traditional accounts, it is also equivalent to providing capital to traditional banks to loan from. It would therefore be difficult to supply cash to end users without also increasing the availability of credit, which may be undesirable for any number of policy reasons.