A Finn and a Spaniard walk into a bar. How do they strike up a conversation? It would be exceptional for either to speak each other's language. And it would be rare for both to be fluent enough in French, German, Esperanto or Russian – all languages which once had the ambition to become Europe's lingua franca. No, that Finn and that Spaniard will talk to each other and order drinks in English, the true second language of the continent. Also, the bartender is probably Irish anyway. Europe's defining trait is its diversity. Europeans don't have to travel far to immerse themselves in a different culture. And if each only spoke their own language, they wouldn't even be able to make heads or tails of it. Or would they? Finnish people probably won't make a lot out of Spanish, and if you're from Spain, Finnish might as well be Chinese.