I disagree in particular to the "to serve debt you have to create more" because creating more debt is incompatible with a capitalistic system because someone has to take the other side of the trade (the creditor).
A rational creditor wouldn't loan more debt and this is why the PIIGS don't get money on the bond market anymore. Therefore the CBs have to "print" the money or take it from somewhere else (ESM, OMT, QE ...) but none of these measures is voluntary but instead forced.
Therefore we have no capitalistic system but planned economy which was the original point.
Debt can also reduced via default. And this happens regularly with many companies and is ok. What is not ok is when these defaults get deferred, for instance, because a defaulting entity has the monopoly on creation of legal tender.