Kai was a wonderful person. He was a good friend to me and to my husband. We had some fun times sailing in Monterey Bay! My sincere sympathies to Markus and family. May his memory give you comfort.

Kai=marvelous Cosmology professor.
Though restrained by Germanic schooling,
he was always fascinated by basis of physics ideas.
He published myriad papers on the subjects of time and philosophy.
I'll always be honored for his most generous invite
to participate in his final cosmology class.