A massive amount of thinking, like truly stupendous amount of thinking, has gone into sex. Without purpose–without procreation, without procreation. Which is actually quite a silly action in the absence of procreation. It’s a bit silly. So why are you doing it? Because it makes the limbic system happy, that’s why. But its’ pretty absurd really… But I mean, a lot of computation has gone into, “How can I do more of that?” without procreation even being a factor.
Elon Musk
Walk In Integrity
For more, check out Elon Musk: A Massive Amount Of Thinking Has Gone Into Sex.