Once we see this novel-sized rant, we now know what Kubrick is showing us: The Shining is a language disconnector, the ultimate horror is employing language without meaning and pushed to this arc's completion, would make storytelling impossible. Jack's sentences are futile explosions, the murders he's trying to commit adds meaning or proves that there is meaning where there is no longer vocalized meaning. Both evidence of his madness (Jack has become as dull, monotonous and robotically controlled as Grady) and his confusion about his identity (now permanent). The page in the typewriter is even faked, it's been placed there mid-page although there is typing both below and above the typing line: Overlook/Jack wants her to see it mid-point, even it is an interview.