Steve Yablo just pointed out to me that there is another Kai in the field.

Kai Wehmeier is Assistant Professor of Logic & Philosophy of Science at UC Irvine. Looking at Kai’s CV, I see that he grew up near Münster, which is where I grew up, and that he attended the University of Münster, which is where I spent the first few years of my undergraduate time.

On his homepage, he lists some work that seems of considerable interest to semantics, in particular a paper in progess called In the Mood, which deals with the semantic effects of mood-marking, as in sentences like

Under certain circumstances, everyone who is poor would have been rich.

A related three-page abstract appeared in a volume of conference proceedings:

World Travelling and Mood Swings, in: Benedikt Löwe, Thoralf Räsch, and Wolfgang Malzkorn (eds.), Foundations of the Formal Sciences II, Dordrecht: Kluwer (Trends in Logic), 2003.

This all concerns topics I also work on. [Sabine and I even taught a class on this a couple of years ago.] As usual, it will take me a while to work through his papers.