icebergIn an unfortunate turn of phrase at the height of his country’s current debt crisis, Greek Finance Minister George Papaconstantinou on Monday compared his government’s Herculean task in slashing deficits and debts as akin to changing the course of the Titanic. Sadly, we all know where the great “unsinkable” ended up almost a century ago and I’m sure,  given the chance, Mr Papaconstantinou would have chosen another metaphor. But if the Greek economy (or perhaps the euro zone at large?) is to be cast as the Titanic, then what is its potential iceberg?