Yes, the 'Addendum' was very good. It's sobering to think that every dollar/euro/yen/GBP etc. in existence, be they real or 'virtual', in reality hold a negative value - to clear a nation's debt would require all that have been created, (from nothing!) PLUS the accumulated interest on the principal - but since there would be none outstanding, this shortfall would have to be 'borrowed' - hence, you find yourself in a Hell of sorts!!!
Looked at another way, with every penny you earn, bill you pay, or product you buy, you are in reality an active participant in indebting your country, creating nothing, just generating more debt!
Death to all Bankers...
