Hyperboreus:@Bruso:

I want to apologize again (A) for the misunderstanding we had and (B) for (partly because of me) the high-jacking of this thread. I want to return to your original question.

I, with the help of some friends of mine, invested some brainjuice into this question and this is conclusion we reached. I am not intending to say that this is the "correct" or "only viable" way to see this, but this approach helped me personally to understand this phenomenon.