text: Genius only refers to a person's IQ rating, which can be just about anywhere on the charts for anyone you meet.  Some people have no idea how to start a car, but they could quote to you how to solve algorithims in advanced physics by using pencil shavings.  Other people have a very strong practical knowledge (look at a leaky pipe and tell you how to better install plumbing through your house), but have trouble with non-practical knowledge (see the reference to physics above).  Everyone is stupid and smart in their own respective ways....that is what makes people so interesting.