"The Curious Incident of the Dog in the Night-time is an exploration of redefining the supposed normalcy of people and the world." In what way is this achieved in the text?

The novel’s author, Mark Haddon, encourages the reader to delve deep into the concept of “normal,” especially through placing an autistic boy in the position of protagonist. With the events presented through Christopher’s eyes, the novel generally inverts common perceptions. Haddon implies that many people’s everyday understanding of what constitutes “normalcy” is, in fact, biased by their limited approach to cognition. Although many people would see Christopher’s way of understanding the world as “abnormal” or “deviant,” Haddon does not present the boy that way. Christopher approaches the subject of the dog’s death with a clearly logical point of view. He evaluates the evidence at every step of the way and makes logical conclusions based on his understanding of each event or clue as it leads to the next. Tackling the daunting tasks of solving the mystery of the dog’s death leads Christopher into a greater and more troubling mystery—the reason that his mother went away.