We return, inevitably, to the topic of the day. Would he conclude that the European currency union was a mistake? "Yes, I think we've been asking, whose fault is this crisis? And I think it was basically fated, from the day the Maastricht Treaty was signed. Now, I think it might be rescuable with a higher inflation target, which is a poor second best to having a fiscal union. But no, the setup is fundamentally not workable.

"What's interesting is that the euro itself created the asymmetric shocks that are now destroying it [via the capital flows it engendered]. Not only have they created something incapable of dealing with shocks but the creation engendered the shocks that are destroying it."