If I'm not mistaken, there are different types of intelligence. One can be not particularly gifted with language skills, but be a whiz at something else like maybe finding their way around a new place, or fixing an appliance. I once knew a man who was about on the level of Forrest Gump or the Waterboy with his intellect, but he could program a VCR faster than I could type those words--and I'm a typist.