Yeah, I did some small parts in high school and the first year of college and then fairly soon thereafter I settled into the backstage scenery, and then at the University of Maryland I was doing posters for their productions. ↗
People repeat behaviour that leads to flooding their brains with pleasurable chemicals. The short-term reward loop acts over hours to years, and the long-term reproductive success loop over generations. ↗
And, as if nature were protecting man against his own ingenuity, the reproductive processes were affected for a time; men became sterile, women had miscarriages, menstruation stopped. ↗