What interests us most isn’t the stuff we already know, and it’s not the stuff we know nothing about. It’s the stuff at the boundaries of our knowledge. It’s the stuff we know we don’t know.
I’ve created a handy graphic to explain what I mean:
If the stuff I know I don’t know is the same stuff that you know you don’t know, then I think we could get along very well together. And if you know some stuff that I don’t know, please do tell me about it.