Everybody thinks it; now somebody has said it.Hans-Peter Friedrich is the interior minister of Germany, and he has publicly stated that it would be better for all concerned if Greece just left the eurozone. It would certainly have been better if the Greeks (and the Spaniards, Portuguese, Italians and Irish) had never joined, and it would probably have been better if the Germans and French had never cooked the whole crazy scheme up.But Minister Friedrich has a point. “I’m not saying that Greece should be thrown out but rather to create incentives that it can’t say ‘no’ to,” he said in an interview with Spiegel. If Europe is going to have to spend money on Greece, and it will, why not use that money to help Greece cope with the consequences of exiting the zone, rather than on continued quixotic and increasingly unpopular and expensive efforts to keep it in?One suspects that German taxpayers would be more willing to stump up the money to get the Greeks out than to try to keep them in. And while for now polls show that most Greeks want to stick with the euro, much of that is no doubt due to their fears of a chaotic return to the drachma. Helping Greece go back to its own currency without massive economic losses and chaotic financial conditions would ultimately do much more for the causes of European unity and Greek democracy than slogging forward on the current unpromising path.Ultimately I still like the idea of two common European currencies: a ‘neuro’ for the north and a ‘seuro’ for Club Med. To avoid catastrophic defaults and legal consequences, the seuro should be called the euro and be the successor to the current currency, and the neuro would be formed by a group of northern countries who leave. Perhaps the two currencies could be administered by one central bank. Over time, the south could reform and the relationship between the two currencies could become more stable. In the short term this looks almost impossible to do, but in the medium to long term it would work much better than trying to keep all the current members in the eurozone.At this point the Europeans are too deep in the weeds to think about big picture reforms, but the continuing problems with trying to manage the Greek situation within the current conceptual framework will ultimately force some fresh thinking. Incentivizing an orderly Greek withdrawal from the eurozone is the kind of out of the box thinking that Europe urgently needs.