Cosmopolis is littered with dialogue where the characters are talking about subjective reality. You could almost randomly flip to any page in the novel and find that someone is talking about subjective reality. It was obvious to me that Don DeLillo purposefully wrote this dialogue adding an argument for the existence of subjective reality. Although one could argue I read the novel looking for people talking about subjective reality and that in reality it is all in my head, for the purposes of this paper I am going to assume Don DeLillo purposely wrote Cosmopolis as an argument for subjective reality.
One of the first lines of dialogue which I encountered that got me to thinking about subjective reality is near the very beginning of the novel when Eric is in the limo talking with Shiner. Shiner asks Eric why they were in the car instead of the office to which Eric replies, “how do you know we’re in the car