Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
Back when I was growing up in the 1970s, we fully expected that, by 2012, we'd all be driving flying cars to our condos on the moon where robotic butlers awaited, ready to bring us the cure for cancer from the bathroom first-aid kit.
I never quite figured out why the sexual urge of men and women differ so much. And I never have figured out the whole Venus and Mars thing. I have never figured out why men think with their head and women with their heart.