I like my naivete. It keeps learning intentional. It makes me want to understand everything, because I feel a personal responsibility to change the world and believe that particular knowledge may be necessary for me to do it.
Human potential is insane. If you don't do something awesome with your life, you are wasting amazing potential.
So, press on. And as we get older, we can either become like Mr. Rogers, taking children on tours of a box factory one week, and a gumball packager the next. Understanding how things work. The mechanics behind things. The people. Getting smarter.
Or we can become like Andy Rooney. Hate everything invented after you were 12. Complain about the world. Get stupider every year. And die angry.
You don't automatically get smarter just by being alive. You have to want it.