While visiting the stable in Rheinau, it was interesting to feel a sensation of warmth from the concrete floor up to about halfway up my thighs, even though the weather was cold. And even the milking parlor – empty, damp, cold – was not uncomfortable. In the technical room of the Sativa building, located 10 meters underground, I did not have a basement feeling; instead, the room climate was pleasant and not inhospitable. In the attic of that same building, wood and concrete formed a unity here; even concrete felt pleasant like naturally grown wood. I got an impression that I could spend all day on this concrete floor without experiencing pain. Professionally speaking, I often find myself standing on concrete surfaces for hours at a time while taking measurements. Afterward, my legs usually ache for several hours.