By default, vim will not split long paragraphs (or any paragraphs (= long lines)) across pages. Instead of showing the first part of a paragraph that does not fit into the page entirely, it leaves out all of it, even if this leaves half the screen empty. Can this be changed?
As an example, see how line 1 is followed by a blank area as line 2 is too big to fit:
PS. I answered this quæstion myself below, but the result is still not quite as I want it. The remaining problem is that, when one scrolls with
<ctrl-y>, vim will only allow the first display line of a paragraph to be at the top of the screen. I want it to be possible to put any display line on top of the screen with
<ctrl-y>. This would be parallel to