The article is about how we navigate. I've noticed that some people are quite good at giving concise understandable directions and other are virtually unable to describe in any useful way how to drive a route they drive every day.
I knew an intelligent, successful person that would give directions like "Turn at the stop sign two streets before the yellow house that has the flag pole. Then keep going, but at the train tracks you've gone too far so before that turn at the light. After Elm street, well right there they were going to build a house on that corner, but they didn't because the husband got a different job in Ohio and I didn't know them that well when they moved away. But anyway make a turn, right no left well the road kind of goes right but stay to the left, but not at the red sign in front of the old hardware store, instead I drive to the next street.", etc.
I knew an intelligent, successful person that would give directions like "Turn at the stop sign two streets before the yellow house that has the flag pole. Then keep going, but at the train tracks you've gone too far so before that turn at the light. After Elm street, well right there they were going to build a house on that corner, but they didn't because the husband got a different job in Ohio and I didn't know them that well when they moved away. But anyway make a turn, right no left well the road kind of goes right but stay to the left, but not at the red sign in front of the old hardware store, instead I drive to the next street.", etc.