Is it more fun not to know?

I have a general education class this semester with students from many different types of majors. In a quip after class, one of the other students asked me to prove that magic doesn't exist, then made this statement (not necessarily word for word):

"Life is more fun when you don't know how everything works."

That statement seems strange to me. I understand that there is no way we can know how everything works, but I don't see how life can be more fun when we DON'T know how it works. Maybe someone more enlightened than I could explain that one...