Read more: Europe’s calamityThere is still a minuscule chance to avert the debacle if Ireland with its "No" vote remains isolated within the EU. Beyond that, however, we should seriously consider whether, within the framework of the Treaty of Nice and on the basis of the Common Market, all parties involved and Europe would be better off parting ways: members favoring political integration should move on, while those satisfied with the Common Market should stay behind.
This formula worked with the Monetary Union. So why not with political integration? At any rate, comprehensive opt-outs are better than long-lasting blockades and disintegration of the European project.