* AdaptationDisplacement: More people know of UsefulNotes/{{Discordianism}} through ''Illuminatus!'' than through ''Literature/PrincipiaDiscordia''.
* {{Anvilicious}}: Multiple examples:
** “Authoritarianism is bad.”
** “Classifying people into arbitrary categories of ‘good’ and ‘evil’ only leads to BlackAndWhiteInsanity.”
** “Unforgiveness is bad.”
* DoesThisRemindYouOfAnything: Hagbard runs down a list of indications that society is becoming increasingly totalitarian: "No-knock searches, stop and frisk laws, universal surveillance, automatic fingerprinting of anyone arrested even before they are charged with a crime..." which sounds suspiciously like modern America.
* HarsherInHindsight: The Discordians blow up a hole through the Pentagon.
* HilariousInHindsight:
** A chapter about a rock festival said to be bigger than Woodstock spends over a page listing off stereotypical names for fictional bands; one of the groups so named is Music/{{Nirvana}}. In fact, not all the band names are fictional; for example Creator/HPLovecraft were a real sixties garage rock group, and (the original) Nirvana were a sixties psych group.
** One of the many characters bearing a PunnyName is detective Saul Goodman. Over three decades later, that name would be made famous by [[Series/BreakingBad someone on the other side of the law.]]
* MemeticMutation: [[spoiler:fnord]]
* SlidingScaleOfLibertarianismAndAuthoritarianism: Take a guess.
* ValuesResonance: Censorship, authoritarianism, and pigeonholing people into categories are still big issues in today's America. The book's messages, while not exactly subtle, are still as relevant as they were back in the [[TheSeventies the '70s]].
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