Like the man says: they call it common sense because it's common.
We think we know all sorts of things and we explain our actions accordingly. But from what I've seen, we are almost always wrong.
So let's make a pact.
Let's all agree that we are almost always wrong: wrong about what we know, our perspective, our understanding, our choices; wrong across the board all the time.
And then maybe we can give up on our dearly held ideas.
Believe in something? You're wrong.
Know something? You're wrong
So let's start being right by living with the knowledge that we are wrong.