Do you think Asperger syndrome is a bit rational?

Asperger's Syndrome is on the ASD (Autism Spectrum Disorder) which is a whole range of disorders, going from "low functioning" to "high functioning" such as Asperger's or Savant syndrome. Savants typically have an ability to tell you the day of the week any date was on. Asperger's are usually gifted in a couple of subjects, such as dinosaurs or space. No two people on the Autism Spectrum are affected exactly the same, so your friend is one of a kind. :) Treat him with respect as he treats you, and make sure to let him know how much he means to you. Good luck. :)