Sublime is the best white ska I've heard. But Jamaican ska is far superior, it's wonderful music.

You make some fine points about culture, some I agree with, others not so much. With regards language, I did say "almost" static, because it isn't actually static and I'm aware of that. It's very slow to change compared to things directly influenced by technology, in some cases much slower than others. I wasn't really thinking of English when I made those comments, consider Welsh, or Icelandic, or many other minor languages around the world. Have these changed? Not so much, because there's less cultural integration and a stronger national identity. Icelandic is the closest language to Old Norse (Vikings) that we have left. And there are social movements within many nations to preserve their native language where it has become secondary to another. Some Scottish people want to preserve the Celtic language, even though very few people speak it these days (approx 1% of Scotland), and nearly all of those who do also speak English. The number of people who speak exclusively Scots Gaelic must be lower than 100, and they'll be old folk who live on remote islands. Scots Gaelic probably hasn't changed at all in centuries, other than to perhaps borrow a word from English.

People born in Iceland today are growing up in a different world than people born in Iceland a decade ago.
We only really need to go back 50 years in Iceland to see a completely different nation, a poor people who basically spent the winters hiding in their houses trying to keep warm. The shift in standard of living for these people is possibly the most dramatic in the modern world. That of course means huge cultural changes. But they also still believe in pixies. Some aspects of their culture doesn't change.