This looks like a good example of the 80/20 rule: 80% of our brain matter is dedicated to the hardest last 20% of IQ points. (Only being slightly tongue-in-chee

This looks like a good example of the 80/20 rule: 80% of our brain matter is dedicated to the hardest last 20% of IQ points. (Only being slightly tongue-in-cheek here.) Also, there's probably usually a lot of brain matter dedicated to redundancy, memories, and enabling connections between ideas to foster creativity, and this person may be lacking in these areas in hard-to-measure ways. If most of our brain truly had no purpose, evolution would have selected against it forever ago. (Instead, evolution went through large lengths to keep our heads so big.)