told from the perspective of a boy apparently with Asperger's and mathematical savant abilities 
 not sure how much reader can extrapolate from the specifics of the story to the general experience of families and individuals living in this situation 
 can't help but feel for the parent's struggle, seen through Christopher's point of view, of dealing with the challenges, and Christopher navigating the world 
 nice topics thrown in as short stream of consciousness asides, e.g. Monty Hall problem, chaos theory, eye-saccades.