"If there was a big bang in the universe and no one was there to hear it, would it make a sound?"
I was taking the train home from work (so great, no driving) and enjoying the sun setting and thinking,
"hmmmm, if humans weren't here....if life wasn't here...to experience this, would any of it happen or exist?"
Perhaps that's one reason humans exist, is to give testament that this world exists? don't know...but it's definitely one reason! Because if we didn't see it...who would?