Jordan Peterson nails it (at 1:51 and forward):
Being knowledgeable, I said a couple of years ago, is the ability to make up your mind, speak your mind, and write it down.
"Something out of childhood whistles through this space, a sense of games and half-made selves, but it’s not that you’re pretending to be someone else. You’re pretending to be exactly who you are. That’s the curious thing."