Migraine inducing, but thought provoking.

From the BBC:

Rogoff adds:

The blue line is global average of public debt relative to GDP. The yellow bars denote the percent of countries in a state of default or restructuring on external debt. The dark pink bars that sometimes rise above the percent of countries in default or restructuring denotes countries with inflation over 20%. The chart suggests that if the historical pattern is followed, there will be soon a wave of sovereign defaults. Needless to say, we appear to be on the cusp of such an event in the eurozone and central Europe, and possibly some countries elsewhere.