Ah, Scandinavia! Vast, untouched nature. Dried, pickled fish everywhere you turn. Was that a blonde mermaid riding by on a moose? It’s hard to see with all the Alexander Skarsgård-lookalikes walking around and speaking such a characteristically melodic language. What is this language — or, rather, languages? And what, exactly, is the difference between Swedish, Danish and Norwegian? In short,…