Word Choice in SH5

Kurt Vonnegut's word choice to me is not very complex or hard to understand. But, at the same time, he is very dark and strong in a way, which really sets the tone of the novel.

A big thing that sticks out to me is that every time someone dies, whether accidental, natural, or on purpose, he says "So it goes." This makes it seem like he doesn't care that people are dying throughout the novel. This also reflects the ideas of the tralfamadorian. "The most important thing I learned on Tralfamadore was that when a person dies he only appears to die. He is still very much alive in the past, so it is very silly for people to cry at his funeral. All moments, past, present and future, always have existed, always will exist. The Tralfamadorians can look at all the different moments just that way we can look at a stretch of the Rocky Mountains, for instance. They can see how permanent all the moments are, and they can look at any moment that interests them. It is just an illusion we have here on Earth that one moment follows another one, like beads on a string, and that once a moment is gone it is gone forever.
When a Tralfamadorian sees a corpse, all he thinks is that the dead person is in a bad condition in that particular moment, but that the same person is just fine in plenty of other moments. Now, when I myself hear that somebody is dead, I simply shrug and say what the Tralfamadorians say about dead people, which is "so it goes.” 

Also, Kurt Vonnegut is not big on emotion. He rarely made Billy cry out loud. Also, when Valencia hear Billy got into the plane crash, he describes 'offensive' way. "Valencia adored Billy. She was crying and yelping so hard as she drove that she missed the correct turnoff from the throughway." To me, describing Valencia's crying as 'yelping' is a very cruel term, especially over her husband's injury that could have killed him. Also, the simple fact that Billy never showed much emotion towards Valencia, despite her loving him, also shows Kurt Vonnegut's completely negative and cruel tone through SH5.