The humor, or "comedy," in this song is largely derived from the fact that the narrator claims to hold impartial views about humanity. The song must have been both written and sung by a human, so the narrator's bafflement about religion and politics and life here on earth in a broader sense is tinged with irony. The narrator's tongue-in-cheek explanation for why people are born in the opening of the song is a source of humor. Nature is personified as devising the modern means of reproduction in response to the absurdity or comedy of humans having too-large brains.
This song functions as a satire of religion and politics and is written from an arguably nihilistic point of view. The irony, according to the narrator, is that humanity's approach to politics and religion is built on a faulty worldview. This worldview ascribes meaning and purpose to life due to religious or political beliefs. After sarcastically discussing religion and politics, at the end of the song, the narrator clearly states his own belief that it is only human relationships that give people meaning. Every other belief is "pure comedy." The narrator attempts to shed doubt on the authenticity of religious belief by claiming that it is in the struggle to survive that people feel alive. For these reasons, the song has a deeply cynical, existential, and bitter tone. To claim that there is no meaning to life other than what we create through bonding with each other may lead to the nihilistic question, Then what is the point? According to the narrator, there is none—so stop looking.