After spending the majority of his childhood in a dark room with little to no contact with anyone other than an abusive father, it is clear to see why Peter Stillman had to learn how to speak at a later age than most children. It is easy to go off in the direction that Peter's language is merely a product of his upbringing and not bat another eye at it, but one must delve further to gain a true understanding of what could possibly be going on in his obviously distorted mind. Whereas many will allude to the "boom, boom, boom" he suffered from as an excuse for his speech, but it more closely related to his lack of development. Being placed in a dark room with no contact at the age of two for nine years is a pretty sure way of preserving childlike behavior and distorting the child's mind. Without social contact, there was no opportunity to mature and grow, and without the opportunity learn and speak, Peter lived securely in his own mind. And in his mind, is where his own version of language was born.
One of the first things that Peter says can be linked to a sentiment his father expresses in his own manner later on in the book. "There are words you will need to have. There are many of them. Many millions, I think." This can be paralleled to Peter Stillman Sr.'s idea that man has taken language for granted, that with the evolution of humanity, language needs to evolve as well to remain valid. The example of the umbrella that he gives Quinn shows this. If the umbrella is broken and is no longer serving its function of protecting someone from the rain, can it really be called an umbrella? The two Peter's have become adept at creating their own words for their own languages, but clearly for different reasons. The "millions of words" that they both focus on poses a question: if Peter Stillman Jr. does not know the word for umbrella due to his lack of a verbal upbringing, does he know that even if it no longer serves its original purpose due to the fact that it is broken, it is still referred to as an umbrella? And furthermore, would Peter Stillman Jr., like his father, create a new word for it entirely?
Without ever having any sort of real parental contact with his father, in some way, Peter Stillman Jr. shares similar views when it comes to creating a language and the millions of words that can be used to describe the objects of the world. While Peter Jr. creates them out of necessity for not knowing the true word for it, Peter Sr. creates them due to his disdain for what the modern language has become. An argument can be made that these two men have the truest form of language in the world. Without being influenced by outside sources, and being like Adam, creating names for the creatures and the objects of the world, the Stillmans could have been the next step in the evolution of language. The reader can be left wondering after examining Peter Sr. and Peter Jr; what would a new language be like if created collectively between the two of them? Whether it was a similar written code like that of my friends in middle school, or a secret language shared between children so that their parents don't know what's going on, the childlike mentality of the Stillmans could have produced an evolution of words never seen before.