[ccozan]

...and somehow missed the most important thing of the humanity: have some children, raise them as proper humans and pass them your knowledge and wisdom.

All the above points have their share of being somewhat important, and certainly help to live a life as close to reality as possible, but children tops everything out.

[davebryand]

This is a great point. I started that list with leaving SF, but you're absolutely right that having kids is truly what started turning my ship in a whole different direction.