Haruki Murakami

Every day I go to my study and sit at my desk and put the computer on. At that moment, I have to open the door. It's a big, heavy door. You have to go into the Other Room. Metaphorically, of course. And you have to come back to this side of the room. And you have to shut the door.

I can well imagine that certain writers, even writers that we'd consider today very great writers, may not necessarily have tested highly on IQ just because of their numerical skills, or maybe they may not be very good at memory, and are not particularly good at these kinds of tests.