The Curious Incident of the Dog in the Night-time, chapters 181-199

Chapter 181 
What does Christopher do when he enters an unknown place?

Christopher explains that he must memorize every physical detail of his surroundings. In places he has already been to he can just note the changes that have happened since his last time there. But if Christopher is in a completely new place, processing his what is around him can make his mind freeze up, like a computer crash. Most people are not like this, and only glance at their surroundings before moving on. In a field in the countryside they might notice some cows. In the same field, Christopher would memorize the exact number of cows, their colors, and where they are. Christopher says that he is good at math and logic because he pays attention to detail.

Chapter 191 
What does Christopher do to clear his mind at the train station?

How does Christopher manage to get a train ticket?

Chapter 193
What does Christopher realize about time?

Christopher used to make timetables for all his toy trains and for himself. Christopher explains that time is not like space. If you put down an object you can draw a map back to it, or remember where it is . The object is where you left it. But time is the relationship between things that have happened and is not a fixed relationship. If you travel near the speed of light in a spaceship you may come back to find that everyone you know is dead, while you remain young. If you get lost in a desert you are in a desert, but if you get lost in time you are nowhere at all. Christopher likes timetables because they make sure that he does not get lost in time.

Chapter 197 
Where does Christopher hide from the police?

Chapter 199
Christopher thinks that people believe in God illogically, because they do not realize that unlikely things can happen by chance. He illustrates the three conditions needed to result in life: Replication, Mutation, and Heritability. He says humans are animals just like any other, only luckier evolutionarily. One day an animal will evolve that will be smarter than humans are, or humans will catch a disease and die out, leaving some other creature to be the best animal.