All from Wikipedia http://en.wikipedia.org/wiki/Asperger_syndrome
Restricted and repetitive interests and behavior
People with Asperger syndrome display behavior, interests, and activities that are restricted and repetitive and are sometimes abnormally intense or focused. They may stick to inflexible routines or rituals, move in stereotyped and repetitive ways, or preoccupy themselves with parts of objects.[13]
Pursuit of specific and narrow areas of interest is one of the most striking features of AS.[1] Individuals with AS may collect volumes of detailed information on a relatively narrow topic such as dinosaurs or deep fat fryers, without necessarily having genuine understanding of the broader topic.[1][3] For example, a child might memorize camera model numbers while caring little about photography.[1] This behavior is usually apparent by grade school, typically age 5 or 6 in the U.S.[1] Although these special interests may change from time to time, they typically become more unusual and narrowly focused, and often dominate social interaction so much that the entire family may become immersed. Because topics such as dinosaurs often capture the interest of children, this symptom may go unrecognized.[3]
I think that a lot of people, usually men, have a low level fascination, or obsession, with numbers and statistics, for example, baseball fans, how much of the enjoyment of baseball is the sport itself or the statistics that surround it?
