And NORSE CONTENT! OP: "very basic comparison between Icelandic, Danish, Norwegian, Swedish, & Finnish languages from the Stand Still. Stay Silent webcomic (which is set in a post-apocalyptic Scandinavia)" (with cats.
Ok history time again! Norway used to be part of Denmark, so they also sometimes speak Danish. They simplify it on instructions with just Danish instead of Norwegian too. Sweden is the reason they split up(see more posts), so that's what that was about.