But the air! If you stopped to notice, was the air always like this?
This is one of a handful of examples of "free indirect discourse" or "free indirect style": the impersonal, third-person narrator conveys Laura's thoughts without markers such as "Laura thought" or "Laura said." This narrative mode enables the text to seamlessly move in and out of characters' subjectivities. Would it be possible to write a program to identify instances of free indirect discourse?