Servicing debt payments

According to Darryl Robert Schoon:

In the early stages of capitalist systems, interest and principal can be serviced out of the debtor’s cash flow. In the final stage of “mature capitalist systems”, they cannot.

Capitalism’s final stage is what Minsky calls “ponzi-financing”, when debt payments can only be made by additional borrowing. This is what the US, the UK and Japan are doing today, having to borrow against tomorrow in order to pay yesterday’s bills.