Restructuring the debt - an impossible scenario


Ok, here is a best-guess scenario. 
The figures simply do not stack up! Feel free to apply your own optimistic sensitivity testing; this is clearly not the way out for Greece or for Europe. 
Or, are we betting that we only need to hold on until 2015 which is when the estimated upswing in global economy might occur?  

Economist blog - all this for €20bn savings by 2020?