Dylan Smith writes:

A bit like Switzerland (4 languages) hasn't, then?

Unfortunately, the peace and calm of Switzerland for much of its history is
atypical for countries with multiple "official" or important languages.
Belgium, Yugoslavia, and Canada are much more representative of the kinds of
problems that arise. Sometimes it's just a constant undercurrent of friction
and resentment, sometimes it's violence. And it always costs a lot of money
and handicaps economic growth.

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