Even writing e.g. "frimaerke" is not unintelligible, though. One could also imagine that ø and æ were replaced by the more common ö and ä in the future. I thin

Even writing e.g. "frimaerke" is not unintelligible, though. One could also imagine that ø and æ were replaced by the more common ö and ä in the future. I think the "there are so few letters and they are relatively simple" is the point here.