It's crazy to see what these games have evolved into. Basketball started with trying to throw a ball in a basket. Football was just trying to get the ball to the end of the field. And now look at how complicated offenses and defenses have become.
Even a sport like volleyball, that would be considered pretty simple by a casual fan, is insanely complex. I just spent four hours with a pretty high level coach listening to him talk about different ideas and philosophies and it kind of blew my mind.
Anyways, sports are cool.