Hey Baba, David Buss here. Just reading over your lyrics for your cool new album, Human Nature, and I really love it, but one line struck me, the line about the blood of a menstruating woman being unclean. Well, there’s a very fascinating evolutionary theory about the function of menstruation by Margie Profet. Basically what she argues is that sperm are a disease vector that pathogens and other disease organisms use to hitchhike their way into the female reproductive tract, and that menstruation basically functions to expel those disease organisms and pathogens. So if she’s right then the menstrual blood of women is actually different form the blood you get when you cut your finger. Anyway, just thought you might want to know about this. Take care, bye.