Hoshino is a low-class, ex-army truck driver whose response to the confusing, metaphysical events of the novel is often blasé or perplexed. His proximity to events of seemingly cosmic significance satirizes typical human nature. The preoccupation of most of the other characters with psychology, philosophy, and metaphysics makes Hoshino’s ignorance stand out.
Simultaneously, however, his indispensability to the passage of these events makes light of any philosophical interpretation. Take, for example, when Hoshino meets Colonel Sanders, "a metaphysical, conceptual object" that oversees the operation of large-scale concepts like cause and effect, function, and meaning:
“Are you really Colonel Sanders?” Colonel Sanders cleared his throat.
“Not really. I’m just taking on his appearance for a time.”
“That’s what I figured,” Hoshino said. “So what are you really?”
“I don’t have a name.”
“How do you get along without one?”
“No problem. Originally I don’t have a name or a shape.”
“So you’re kind of like a fart.”
“You could say that. Since I don’t have a shape I can become anything I want.”
Hoshino's simile, while crass, does encapsulate one of the Colonel's essential characteristics: that he is without definite form. Overall, the juxtaposition of crude and conceptual language lends a satirical note to the novel's handling of philosophical ideas.