About a month ago I went to a show in a rather small basement room. I've been there several times and it is usually very hot in there with all the people packed in. You will sweat profusely simply standing there. This last time I was with some people who hadn't been there before and found the heat quite surprising. Later though, I began to think about the situation and it seemed to me that the temperature couldn't have been that high. Rather, it was the 100% humidity that made it seem so hot. Upon explaining this idea they expressed doubt that the temperature wasn't above 100F. My logic is this. The main source of heat is human bodies. The human body couldn't sustain a temperature significantly above 100F for a long period of time. It is impossible for the surrounding air temperature to rise above the source of the heat. Can anyone see any flaws in that reasoning?