A little mentioned fact is the massive advances in procreation technologies furthered under the pressure of the world war. To fulfill the foreseen need for rapid repopulation to compensate for the war losses a number of studies were commissioned on how to best use the new fangled field of operations research.

Experts then burned midnight oil to quickly develop efficient new positions for copulation. For example the standing cowgirl position where one of the partners could continue to work on their lathe or welding machine while the other did his duty for the nation was invented by Dr Greer in 1943. This saved countless man-hours and boring women-hours. It made it substantially easier to mass produce the next generation. This increased fecundity came at a significant cost in moral quality and turpitude of the resulting spawn but the trade off was deemed acceptable by President Truman due to the wartime exigencies. For more details look up “Baby Boomers”.