So it goes.

In "Slaughterhouse-Five," satire is used to critique war, bureaucracy, and nationalism. One example is the portrayal of the Tralfamadorians, who see time differently and illustrate the absurdity of human perceptions. Another example is the Tralfamadorian motto "So it goes," used after every mention of death to highlight the indifference towards loss of life in war.

Billy Pilgrim becomes "unstuck in time" due to experiencing time travel as a result of his experiences in World War II and being abducted by Tralfamadorians, an alien race. This unique narrative technique in Kurt Vonnegut's novel "Slaughterhouse-Five" reflects Billy's post-traumatic stress disorder and his struggle to cope with the horrors he witnessed in the war.