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"Why are people born? Why do they die? And why do they spend much of the intervening time wearing digital watches?"

The Hitchhiker's Guide to the Galaxy is a franchise of different media, all telling variations on the same story by Douglas Adams.

To boil it down to the essentials, Arthur Dent, a fairly normal if rather feckless Earthling, wakes up one Thursday and, after a series of confusing events, is spirited away from Earth by his friend, Ford Prefect, right before the planet is destroyed. He then hooks up with Zaphod Beeblebrox, former President of the Galaxy, current fugitive, and all-around cool guy with two heads; Marvin the Paranoid Android, a sarcastic and chronically depressed AI; and Tricia McMillan, a.k.a. Trillian, Only Sane Woman and the only other human being left. Zaphod is on a quest to find The Truth, and everyone else gets pulled along for the ride.

It's a sci-fi comedy with a special kind of absurdity that you're unlikely to find anywhere else.

There have been many adaptations over the years, each one starting from this point and then branching off in a different direction. Adams himself was part of most of these, and thus, they all have some level of "officialness." It's not so much an Expanded Universe as a string of multi-media Alternate Continuities.

The first version was the radio series, The Hitchhiker's Guide to the Galaxy. The first series was broadcast on BBC Radio in 1978, with another series coming not long after, and a Christmas episode linking them. This material went on to become the foundation of the first two books. However, it has several bits not seen in any later version, including the full-length "Shoe Event Horizon" story. After Adams's death, three more series were broadcast, adapting the plots of the last three books.

The radio series was then adapted into a set of long-playing vinyl records note  which contained a little new material and extended scenes cut from the radio show, as well as a run-out gag on the relevant side which answered the question as to who exactly bruised their upper arm. The last record in the series came with its own rubber duck as a promotional gift.

Next came the book series, The Hitchhiker's Guide to the Galaxy Trilogy, probably the best-known version. Originally, it adapted the plots from the radio series, but took off afterwards, becoming five novels in all. The third book was entirely based on a rejected story idea for Doctor Who, and one canon short story about Ronald Reagan was separately published without the name "Reagan" in it and made no sense as a result. The novels vary widely in tone and subject matter, and Mostly Harmless in particular didn't seem to please anyone, even its own author. Adams said near the end of his life that he wanted to do a sixth book which might round things out more nicely, but this was cut short by his sudden death. Specifically, he was believed to have been retooling an in-progress Dirk Gently novel into a new Hitchhiker's story; a few reconstructed chapters were published as part of the Salmon Of Doubt anthology book. A sixth book by Eoin Colfer, entitled And Another Thing... (not to be confused by characters dispensing important info just as they're about to leave) was published on October 12, 2009.

A six-episode TV series version was shown on The BBC, The Hitchhiker's Guide to the Galaxy. This, too, was based on the first radio series, and used much of its cast. It was innovative, particularly in its use of pen-and-ink animation to simulate the "electronic" entries of the titular Guide, but suffered from low budgets and adaptation problems - having Zaphod have two heads and three arms, and an Android main character, were touches of brilliance when presented in a Radio play or book - but translating those concepts to a TV show ran up against the brutal problems of what could be practically achieved with the effects of the period.

There was an Interactive Fiction game, The Hitchhiker's Guide to the Galaxy, that was also largely written by Adams. It's known for being fiendishly difficult, yet a classic of the genre. A fully playable Java version of the original exists on Adams' own website, and can be found here, while the BBC website has two different illustrated 20th Anniversary Editions available on their website, here. The games have less plot than any of the other tellings, ending when you first set foot on Magrathea. A sequel was planned but never made; however, a graphic remake in the form of a Point-and-Click Adventure Game was released in 2010.

In 2005, a big-budget Hollywood movie version, The Hitchhiker's Guide to the Galaxy, came out. The script was based on a previous Adams-written script, and contained several new ideas by him, including the POV Ray and the Vogon homeworld.

The series has also been adapted into stage shows (including a touring version with the cast of the radio version reprising their roles, and a rotating celebrity guest as the voice of the Book), albums, comic books, and even a version printed on a towel. There is also a website, created by Adams himself and originally run by the BBC, called H2G2.

It now has a character sheet.

Various versions and components of the franchise include:

Tropes found in The Whole Sort of General Mish-Mash include:

  • Absolute Xenophobe: The Krikkiters, who, upon becoming aware that there was a universe outside their dust cloud, decided that it all had to go.
  • The Ace: Zaphod, Zig-Zagging Trope.
  • Achievements in Ignorance: Invoked. To fly, one must aim at the ground and miss. To miss you have to distract yourself at the last moment. Then once you've achieved flight, you have to avoid thinking about how this is impossible or gravity will notice you, hard.
  • Adaptation-Induced Plot Hole: The radio series is the only version to explain how the gang ended up at Milliways: The computer bank they were hiding behind was a hyper-time field generator, which upon exploding opened a hole in time, sending them to the end of time, which luckily led to the Restaurant At The End Of The Universe. In the book, Zaphod asks to be taken to the nearest restaurant and Eddie sends them to Milliways - physically in the same spot, but separated in time by several hundred billion years - in a version of Exact Words.
  • Added Alliterative Appeal: The Big Bang Burger Bar. (Note that it's called The Big Bang Burger Chef in the radio series.)
  • Advertised Extra: Trillian, in the radio series.
  • Aerith and Bob: Aliens in the series tend to have strange names but robots and computers tend to have human names like Marvin, Eddie and Colin. Keep in mind that this series named the Insignificant Little Blue Planet trope and most of the galaxy hasn't heard of us. The only exception is that someone called Dan Streetmentioner is mentioned in the second book.
  • A.I. Is a Crapshoot:
    • Hactar. While technically trying to fulfil their last assigned function, they have also gone quite insane from bitterness over the epochs.
    • Pretty much all A.I. encountered in the series have some sort of personality flaw. Marvin is chronically depressed, Eddie is irritatingly chirpy and cheerful, Eddie's backup personality is even more irritatingly matronly, the nutrimatic drinks dispensers are aggravatingly patronising, the doors are teeth-clenchingly smug, and so on and so forth. This even led to a Blight of the Robots on the planet Brontital.
    Arthur Tried to take over, did they?
    The Old Wise Bird: Worse than that. They told us they liked us!
    • Also on Brontital, Ford and Zaphod come across a Derelict Graveyard where one ship is still intact and hooked up to the power, whose AI crew spent 900 years waiting to take off, keeping the passengers in suspended animation, because they were awaiting a consignment of lemon-soaked paper napkins.
  • Alien Animals: White mice and dolphins.
    • The mice are aliens in that they commissioned the Earth to be built (long story), and the dolphins are aliens in that they left the planet before it was destroyed. They even left a laser engraved fishbowl that gave us the title of the fourth book as a parting gift.
  • Alien Geometries: The inside of Wonko the Sane's house, "Outside the Asylum"; in the novels, Arthur valiantly tries to work out how the inside-out house actually goes together, but it never quite looks right to him.
  • Alphabet Architecture: The head-offices of the publishers who make the eponymous guidebook is shaped like a capital H, although why it's shaped like this and not some alien lettering is never explained... It's just another improbable coincidence, probably.
  • Alternate Continuity:
    • The official stance by fans is that the franchise has no canon, only suggestions. Each of the various formats the franchise covers (radio, novels, TV series, game, movie, etc.) directly contradicts all the others.
    • Played with in the radio series: "Many stories are told of Zaphod Beeblebrox's journey to the Frogstar. Ten percent of them are ninety-five percent true, fourteen percent of them are sixty-five percent true, thirty-five percent of them are only five percent true, and all the rest of them are told by Zaphod Beeblebrox".
  • The Alternet: The eponymous Guide updates itself over the "sub-ether," implied to be a galactic Internet-like communications medium.
  • Ambiguously Human: Almost every alien in the series, since Adams wasn't big on description.
    • Averted for the Vogons, despite the scarcity of the description, which includes a 'high domed nose' and a brain that turns out to be a misplaced, malformed, and dyspeptic liver.
  • An Alien Named "Bob": Parodied in every version. Ford takes what he thinks is a perfectly normal Earth name, to better blend in on the planet. His problem is that he thinks cars are the dominant lifeform, not humans.
  • Anti-Hero: Arthur, in the "befuddled" sense.
  • Applied Phlebotinum: Heavily parodied with pretty much any runs-on-nonsensoleum device or object you can think of. Be it improbability, the inability of shared restaurant bills to quite add up, or even pure art, you can bet it's been applied somehow.
  • Arc Number: 42.
  • The Artifact: Zaphod, at least if his absence in the last two Hitchhiker's novels Adams wrote is any guide; either Adams grew weary of the character or simply found him too difficult to write for. Every subsequent adaptation, including the radio versions made after Adams died has restored him to prominence.
  • Ax-Crazy: Random.
  • Bad Guy Bar: The Old Pink Dog used to have a sign that read "Please don't ask for credit because having your throat torn out by a savage bird while a disembodied hand smashes your head against the bar often offends". The bar's reputation eventually made the sign unnecessary.
  • Barred from the Afterlife:
    • Arthur Dent mentions that he used to have a recurring nightmare where he died and there was a bureaucratic error: all his friends went to heaven or hell, but Arthur got sent to Southend.
    • Agrajag in Life, the Universe and Everything
  • Bathos: Used constantly for surreal humor. The page quote is just one of many, many examples.
  • Batman Gambit: In Life, the Universe and Everything Hactar takes advantage of his apparent failure to trick the people of Krikkit into destroying the universe to instead plant the real supernova bomb on Arthur and manipulate him into nearly doing so. If Arthur weren't the world's worst cricket bowler, he may have succeeded.
  • Be Careful What You Wish For: an initially unintentional example. Early on Arthur's first reaction to the Vogons is to wish he had a daughter so he could tell her not to marry one. Later on... he gets Random. (This is picked up in the stage adaptation where needless to say, Random needs no convincing and rudely dismisses the very notion.)
  • Beneath Notice: Invoked by the SEP field. Whilst it doesn't make you invisible, it does make you appear to be Somebody Else's Problem to an observer and therefore beneath notice from their perspective.
  • Beware the Mind Reader: There's an entry for an entire planet of beings who were cursed with telepathy. Everyone on their entire planet could hear every thought in every other mind on the planet, whether they wanted to or not, which quickly threatened to drive them bonkers from information overload and/or sheer boredom. They solved this by adopting the habit of constantly talking loud enough to drown out the constant, unwanted incoming mental transmissions.
  • Big Little Man: The G'Gugvuntt and Vl'hurg species, who spend thousands of years sending a vast space armada for thousands of years across space to attack Earth. Due to a difference in scale between the life forms of their respective galaxies, the joint alien fleet descends upon Earth only to be eaten in passing by a small dog.
  • Blessed with Suck: Marvin the Paranoid Android embodies both this and Cursed with Awesome. He's a robot who exists entirely in a state of near suicidal depression, so being Nigh-Invulnerable must be a horrible burden. Marvin's principal curse is that he was granted a "people personality" together with an almost limitless level of intelligence. While this may seem great on paper, it in effect meant that no task he could conceivably be given (including, at one point, solving "all of the major mathematical, physical, chemical, biological, sociological, philosophical, etymological, meteorological and psychological problems of the Universe except his own, three times over") could possibly give him any form of satisfaction. It's just one more example of the myriad ways the universe keeps kicking him in the metaphorical plums.
    • Give him the POV Gun and he can make a small army of Vogons collapse from depression, unable to fight. Of course, that will not make Marvin himself feel any more significant.
    • He does the same thing to the Krikkit robots in Life, the Universe and Everything when the Masters of Krikkit salvage him and put his massive intellect to work coordinating their military strategy. The result was war robots who would go off and sulk and start doing quadratic equations instead of their job.
    • They harnessed Marvin's immense intellect to the Central Intelligence Core of the Krikkit War Computer. He didn't enjoy it. And neither did the Central Intelligence Core of the Krikkit War Computer.
    • And earlier in the series he drives a ship AI to suicide just by trying to talk to it.
      • Although in the book it says he shared his life view with it which, based on what we know of him, might be disturbingly convincing.
      • The same thing happened when he tried to open a bridge.
    • In one of the radio series he tortured some bad guys with his autobiography on tape. It's quite disturbing.
  • The Blind Leading the Blind: Ford trying to teach Arthur about advanced scientific principles, most notably Time Travel in The Restaurant at the End of the Universe.
  • Bolivian Army Ending: Mostly Harmless.
  • Brick Joke: After nuclear missiles are launched at Our Heroes, the narration reveals that the only damage destined to result from this are one bruised upper arm and the escape of two pet mice. The episode proceeds. The End Credits stinger? "I'm sorry, but I'd probably be able to cope better, if I hadn't bruised my arm."
    • The TV series used "Arthur bruised his upper arm" said by the narrator/book after all the credits had run. (Also, if you replay the scene and look carefully, you can see the fall that caused the bruise).
    • The LP record puts the End Credits stinger Arthur Bruised His Upper Arm in the run-out groove to the label, much like the famous backwards-talking line on the Beatles' Sergeant Pepper (a Shout-Out?)
    • It is quickly revealed that the fact of the freed mice is actually quite important.
    • Also, the third and fourth novel each retroactively create brick jokes out of what had originally been intended as unexplained throwaway lines: the third novel reveals the truth about the bowl of petunias that thought "Oh, No... Not Again!", and the fourth re-introduces the girl from the café in Rickmansworth who was mentioned way back at the beginning of the series.
    • Not to mention the aside about living mattresses toward the beginning of the first book; eventually in Life, the Universe and Everything we finally see one alive.
    • And the throwaway line about Arthur wishing he had a daughter so he could forbid her from marrying a Vogon, and then ending up with Random. Only the stage adaption of (ostensibly) the radio series really deals with it as such, though.
    • At the beginning of the game version, the player can pick up a toothbrush, upon which a tree falls on the phone lines. The game mentions that there is no causal relationship between these events. At the very end of a victorious play-through, the game mentions that there actually was a causal relationship between these two events, and apologizes for the inconvenience.
    • In the secondary phase of the radio series, Arthur asks Ford "Who would want a motorised rock?" The response is essentially the same as Marvin's, to Zaphod's earlier question "Who in the Galaxy would want to bomb a publishing company?" (Another motorised rock/publishing company.)
    • The towel's role of importance to galactic hitchhikers, which was used in the TV series and the novelisation, was first used in the first chapter (or "fit") of the secondary phase.
  • Brits Love Tea: Arthur is always trying to get hold of some, but the nutrimatic machines out there in the universe can't understand why he wants dried leaves in boiling water instead of the "almost, but not quite, entirely unlike tea" substance they inevitably produce. In the games, "no tea" is an item you (as Arthur) are carrying, and it becomes important later on.
  • Butt-Monkey: Marvin on a lot of occasions has good reason for being so depressed. Most of the rest of the cast get to carry the Butt-Monkey ball from time to time as well.
  • Casual Time Travel: There are protest groups organized over the problem of historical pollution, but they are largely ignored by the people who actually travel in time.
  • Catchphrase: "42."
    • Marvin: "Life! Don't talk to me about life!" "Brain the size of a planet" "This terrible pain in all the diodes down my left side", and perhaps most famously, "I think you ought to know, I'm feeling very depressed"
    • Arthur: "So this is it. We're going to die."
      • Which is usually followed up after its first usage in a work by the Guide explaining Ford Prefect's theories on human speech and their tendency to state the obvious, the first being "If they don't keep talking their mouths seize up" and the second being "If they don't keep talking their brains start working", and then informing us that Ford quite likes humans even if the second theory is true.
    • Narrator/The Guide: "The Hitchhiker's Guide to the Galaxy has this to say on the subject of ____. It says that ____ is...", "By a startling coincidence"
    • Don't Panic!
    • (For the computer game): Tea and No Tea.
  • Central Theme:
    • Meaninglessness and happiness. Throughout The Hitchhiker’s Guide to the Galaxy, many characters try to find meaning in their lives and search for the significance of their own existences. As they focus on discerning the meaning of life, their happiness decreases, and their efforts to eke out an existential purpose ultimately prevent them from enjoying life. The most successful and happy people in the story are those who accept life as a nearly meaningless experience — something that doesn't have a reason, it just is.
    • Power and control. Arthur Dent learns to accept that he is powerless against humanity’s apathetic bureaucracies, and even more powerless in the face of the alien races he encounters after Earth is destroyed. Adams frames authority and power as abstract and inaccessible. In the same way that Arthur can do little to stop the state from destroying his house, Arthur suggests that true power over others comes when people don’t even know the nature of their own oppression.
    • Improbability, impossibility, and absurdity. The galaxy that the story takes place in is a place where seemingly anything can happen. In fact, Adams goes out of his way to upend readers' expectations about storytelling. Although he goes through the motions of explaining how a spaceship's "Improbability Drive" functions, his explanation relies heavily on unfamiliar concepts that force readers to move through the novel without any kind of understanding of the very components that drive the story. As such, he plays with the conventional narrative form, challenging the idea that fiction has to be plausible, realistic, or predictable.
  • Chekhov's Time Travel: Time travel, acknowledged but never needed for a while in the stories, is used to escape from mice who want to dissect Arthur's brain. As a subversion, the mice then have the option to create another biological super computer to find out what they wanted to know, but which would take 10 million years to process it — instead of making it and then travelling in time for the answer, they decide that it's too long to wait and falsify data.
  • Comically Missing the Point: Just as they don't have sarcasm on Betelgeuse, so Zaphod doesn't appear to understand Self-Deprecation:
    Zaphod: Hey, that was smart thinking, earthman. Turning on the Infinite Improbability Drive. You just saved our lives!
    Arthur: Oh, it was nothing really.
    Zaphod: Oh, was it? Oh well, forget it then.
  • Community-Threatening Construction: It starts with Arthur Dent's house getting demolished to make way for a new bypass, then moves onto the entire Earth being disintegrated for the same reason.
  • Confusing Multiple Negatives: The only way Marvin is capable of complimenting Trillian.
    "That girl is one of the least benightedly unintelligent beings it has ever been my extreme displeasure not to be able to avoid meeting."note 
    • Zaphod has to pause and parse the sentence to work out the negatives properly before replying.
  • Continuity Snarl: Adams deliberately ensured that no two forms of the franchise were the same, with the exception of Arthur and Ford fleeing the Earth in Fit/Chapter/Part/Act One.
  • Cool and Unusual Punishment: The Total Perspective Vortex. Also, having Disaster Area stage a concert on your world might qualify.
  • Cool Starship: The Heart of Gold, the Starship Bistromath and several others.
  • Corrupt Corporate Executive: The executives of insurance companies are implied to be this in general, since Trillian mentions that the death penalty has been instated for them, and when Arthur asks for which offense she merely responds "What do you mean, offense?"
    • Comes up on other occasions as well: for instance, the bright boys whose company produces a cloning machine that you essentially can't turn off without committing murder simply have their legal department write up and begin mass duplication of an Agreement to Cease to Be. Effective, yes, but quite soulless.
  • Corrupt Politician: Played for laughs. Many galactic presidents are arrested on election, on general principle.
    • The essential dilemma of elective politics is summarized in the second book: "Anyone capable of getting themselves elected President of the Galaxy ought on no account to be allowed to do the job."
    • Zaphod is mentioned as being one of the most successful Presidents the Galaxy has ever had, having already spent two years of his ten-year term in prison for fraud.
  • Cover Version: The radio series, records, TV series and even the film all use different versions of the The Eagles' "Journey of the Sorcerer".
  • Crapsack World: No one seems to mind blowing up a planet and the legal system seems broken. Played for Laughs.
    • The planet NowWhat in Mostly Harmless.
  • Cross Cultural Kerfuffle: A minor, comical example. During the section explaining how scientists view of the Babel Fish has allowed for the final proof of the non-existence of God, it is said how one can then go on to prove black is white and promptly get run over at the next zebra crossing. In Britain and many other countries, black-and-white stripped "Zebra Crossings" are the equivalent of the (often yellow or parallel lined) American "Crosswalk". Americans, when reading the joke, usually imagine the term as an equivalent to a "Deer Crossing" (that is to say, a place where zebras cross) which makes for an equally humorous - though different - joke.
    • There's an in-story example, where a casual throwaway remark Arthur makes regarding his lifestyle leads to an interstellar war of gargantuan proportions note  breaking out.
    • The Ford Prefect was a small car Ford designed and manufactured in England, sold in America only in tiny numbers as a specialty import and unknown to all but car-trivia buffs by The '70s. Adams regularly commented on how Americans were completely unaware of a joke they weren't getting.
      • Other countries that did translate it had to find ways of getting around the problem. Usually by renaming him "Ford Escort".
      • The TV series downplays it by showing a list of names Ford considered using, most of the rest being much more recognizable, at least getting across the impression that he's named after something real. The movie lampshades it by Ford referring to Arthur meeting him by saving him from being run over when he tried to shake hands with a car (which he now explains, having revealed himself to be an alien, he had mistaken for the dominant life form on Earth).
      • Cosmologist Carl Sagan once speculated that any alien observing Earth from orbit would come to the conclusion that the dominant life-form has wheels. Human beings are their lesser symbionts who do everything for their wheeled masters, cleaning them, feding them, maintaining them, and at great time and labour, constructing their massive migration pathways and rendering their going smooth. The whole thing about the Ford Prefect is homage to Sagan.
  • Cursed with Awesome: And in a typically British form! While it's no fun for Marvin "the paranoid android", in typically British fashion he has managed to weaponize his ennui, cynicism, sense of futility, and overall depression into a force to be reckoned with! Nothing can faze him, so he can endure millennia of tedium walking in a circle in a swamp or waiting in a car park without getting any worse mentally than he already is. The cosmic force of his doldrums enables him to destroy indestructible robots just by talking with them. He has managed to live multiple times longer than the universe manages to exist (definitely outliving the Sirius Cybernetics Corporation!), in part because cunning people seem to realize how useful an agent he can be (and never care what he thinks about it). In the end, he manages to be one of the most powerful characters in any of the series as a result of his weaponized depression and ennui.
  • Data Pad: The Guide itself is like a dedicated e-book reader, seeing as if it were put on paper it would take up several large buildings.
  • Deadpan Snarker: Arthur, to various degrees depending on the incarnation. He's definitely at his snarkiest in the radio dramas, but every version of the story has him engage in at least a bit of snark.
    • Marvin, not that it ever makes him feel better. Crosses over into Servile Snarker.
  • Deus ex Machina: The ending of the radio series. Arthur and the other main characters are spared from the destruction of Earth by the implanted Babel Fish, who are revealed to be relatives of dolphins, and transplanted to the Restaurant at the End of the Universe. It is also revealed that beyond the Restaurant lies an endless series of blue lagoons, which is the final destination of the dolphins. Arthur asks Fenchurch, "Will you come flying with me?" She responds, "Always". A lot of fans prefer it to the much darker ending of Mostly Harmless.
  • Does Not Understand Sarcasm: Ford, occasionally. (Canonically there's no such thing as sarcasm on his home planet Betelgeuse Five, so he doesn't always notice if he's distracted by, say, the impending destruction of the planet or something.)
  • The Dog Was the Mastermind: The white lab mice were the real masters of Earth.
  • Downer Beginning: Earth is destroyed by a Vogon constructor fleet.
  • Downer Ending: The end of Mostly Harmless. Earth Explodes, Everyone Dies, and not only are they dead, but they've been removed from the timeline and have ceased to have ever existed in any possible timeline. See Creator Breakdown.
  • The Drag-Along: The characters usually take turns depending on the situation, but Marvin is always this.
  • Dreadful Musician: Disaster Area. Subverted in that they're still wildly popular.
    • On one occasion the argument is put forth that Disaster Area is actually good for the environment, on the basis that a show in a desert causes the entire desert to fly into the air and flip over like a mile-thick pancake, and the resulting exposure of fertile soil causes a field of vibrant flowers to sprout in short order.
    • Also Disaster Area is the only noise in the universe loud enough to drown out the unwanted telepathy of the above-mentioned Belcerebons - this is why the Disaster Area concert takes place on Kakrafoon. The Belcerebons are quite lucky - since Disaster Area is established as the loudest noise in the universe, it not being loud enough would mean there is no cure at all.
  • Dropped a Bridge on Him: Poor Fenchurch.
  • Dude, Not Funny!: The sheer tastelessness of a genocidal war being reduced to an entertaining British ball game has caused most of the galaxy to shun humanity.
  • Earn Your Happy Ending: Arthur was due the huge break life gave him in So Long. Too bad it didn't stick. (Though it does in the radio version.)
  • Earth Is the Center of the Universe: Averted at the beginning of the first book, then played straight for the rest of the series.
    • An odd example of this trope. While the Earth is important to the mice's plans, what are those plans? To go on the talk show circuit and get rich. The only version of the Ultimate Question we learn is nonsense. When another character learned universal Truth by another method, it drives some people mad, but has more to do with frogs than universal epiphanies and isn't mentioned again in any of the following books. There is a Ruler of the Universe, and he doesn't live on Earth. All things considered, Earth is more important to the universe in this series than it seems in Real Life, but it's still an absurd, farcical, nearly crapsack universe full of Shaggy Dog Stories, so nothing is all that important.
  • Earth-Shattering Kaboom: Planet Earth is destroyed by the Vogons. And rather spectacularly in The Movie.
  • Earth That Was: Earth gets destroyed at the start of every version.
  • Elvis Has Left the Planet: Heavily implied by a scene in Mostly Harmless.
  • Empty Shell: Arthur visits a planet like Earth, but without any motivation or hope. They die of thirst when their plumbing breaks.
  • Encyclopedia Exposita: Not only are there lengthy excerpts from Guide articles, but the radio series, television series, and The Movie make it plain that the story is being told by the Guide itself. Of course, the guide's use as one can vary, for it contains many glaring omissions, and much that is apocryphal, and its writers prefer not to leave their offices if they can help it. It generally does better over its rival, the more accurate Encylopedia Galactica because A: It's slightly cheaper, and B: It has the words "don't panic" inscribed in large, friendly letters on the cover.
  • The End of the World as We Know It: Subversion: The series starts by blowing up the planet.
    • Lampshaded in advance by the barkeep at the pub from which Ford and Arthur have just left.
    Barkeep: Last orders, please.
  • "Eureka!" Moment: The invention of the Heart of Gold owes itself to one, in the aftermath of a spectacularly poor party hosted by a group of respectable scientists. A junior scientist was cleaning up afterwards and pondered the probability factor of creating an infinite improbability drive. He reasoned that if it wasn't an infinite improbability then it was by definition a finite probability, and therefore all he had to do was work out just how probable it was. So he hooked up a probability calculator to a particularly strong pot of tea (for the necessary brownian motion) and presto! One infinite improbability drive. Sadly, he didn't get to enjoy the fruits of his labour for long, as he was lynched at the award ceremony by respectable scientists for being a smartarse.
  • "Everybody Dies" Ending: The ending of the book version of Mostly Harmless. The radio adaptation spares the main characters through a Deus ex Machina.
  • Evil Minions: "Resistance is useless!"
  • Exactly What It Says on the Tin:
    • The Point of View Gun.
    • A sundive. Wherein a spaceship dives into the heart of a sun.
  • Extra Parent Conception: Zaphod has a bit of this, mixed with Grandfather Paradox.
  • Eye Lights Out: Marvin in So Long, and Thanks for All the Fish.
  • Famous Ancestor: Mr. Prosser is, humorously, a direct descendant of Genghis Khan. ...And Another Thing adds another that is the descendant of the Norse hero Sigurd. Needless to say, he becomes obsessed with Thor once he lands on Nano.
  • Fantastic Racism: In the radio series, the shape-shifting Haggunenons hate all the "filthy rotten samelings".
    • Then there are the Krikkiters in Life, the Universe and Everything, who wanted to destroy ALL other life forms. ( But it turns out they were being manipulated by Hactar.)
    • And Zaphod (and a lot of other people) who're always calling Arthur a monkey-man or similar. (They conveniently avoid this with Trillian.)
  • Faster-Than-Light Travel: First hyperspace which was unpleasant and occasionally erased people from existence or otherwise when horribly wrong. (Mostly in the fifth book). The infinity improbability drive which kept turning planets into cake and finally a bistro mathematics powered drive.
  • Fiction 500: The "plutonium rock band from Gagrakacka Mind Zones," Disaster Area, who managed to redefine economic theory by how mind-blowing ultra-rich they got; and Magrathea, the planet that became so rich the rest of the galaxy's economy collapsed.
  • Fictional Colour: Hooloovoo is a supersmart shade of blue. And by "supersmart", we mean "sentient and intelligent."
  • Fish out of Water: Arthur is a remarkably normal person in an insane and complicated galaxy.
  • Foreshadowing
    • In the first book, Arthur says, "I wish I had a daughter so I could forbid her to marry [a Vogon]." As of Mostly Harmless, he has one.
    • The other half of the spoilered text turns out to be a subversion in And Another Thing.... Early in the book, we see Random's questionable choice of husbands, and later, we meet a Vogon character who is actually a fairly decent guy. The two never meet.
    • The part on Bartledan literature is foreshadowing on the use of foreshadowing in Mostly Harmless. In the book Arthur reads, the main character dies of thirst just before the last chapter, because of some problem with the plumbing that is only referenced once at the beginning of the book. Arthur finds this exasperating. Of course, the few clues that explain the Bolivian Army Ending are hidden the same way in Mostly Harmless. The reader finds this exasperating.
    • The demolition of Arthur's house due to a huge bureaucratic cockup foreshadows Earth's fate.
      • Although it is subverted in the books and the movie by The Reveal that it was actually malicious. (For money in the books, and to break up Zaphod and Trillian in the movie.)
  • Friendly Playful Dolphins: This trope is stated to be why dolphins are a Superior Species — while humans went around having wars and inventing the wheel, dolphins just splashed about in the water having a good time. Their final message to humanity ("So long, and thanks for all the fish") was disguised as "a sophisticated attempt to jump through a hoop while whistling The Star-Spangled Banner."
  • Gargle Blaster: The Trope Namer. The Pan-Galactic Gargle Blaster is one of the most hideously dangerous drinks ever devised, generally described as being the alcoholic equivalent of a mugging, and the effects as "like having your brain smashed out with a lemon, wrapped around a large, gold brick." The Guide tells readers where they can find the best place to find one (all of which have Names to Run Away from Really Fast), and where to find recovery programs afterwards.
  • Genesis Effect: The Magratheans create customized planets for very wealthy customers.
  • Genetic Memory: Humans created Cricket out of a racial memory for the Krikkit wars.
  • Genocide Backfire: The Vogons may be too stupid and apathetic to care, but they destroyed a ten million year old supercomputer (Earth) just as it was finishing its calculations of, basically, the ultimate meaning of everything.
  • Genre Shift: While remaining comedic first and foremost, the first two books are picaresques, the third is a caper, the fourth a romance and the fifth almost hard sci-fi.
  • Giftedly Bad: The Vogons, at poetry.
  • God Is Inept:
    • His final message to His creation is "We apologise for the inconvenience."
    • One of the first things mentioned in the books and miniseries is the blockbuster philosophical trilogy Where God Went Wrong, Some More of God's Greatest Mistakes, and Who Is This God Person Anyway?
      • The author of these books was Oolon Coluphid, who went on to write Well, That About Wraps It Up for God when it was shown that the Babel Fish proved by its sole existence by chance that God does not exist. However, it is noted that most theologians consider this a load of dingoes' kidneys.
  • Godly Sidestep: The Answer doesn't mean anything. The Question (which ought to clarify matters) is never seen in its completed form, as the Earth blows up five minutes too soon.
    • Several versions of the story mention that it has been theorized that if anyone were to learn both the Answer and the Question so that it makes sense, the universe will promptly disappear and be replaced with something that makes even less sense. (A corollary to this theory states that this has already happened at least once.) It is also heavily implied that the first theory is true, and the second one very well may be.
    • The footnotes of the original radio scripts notes that a letter in The New Scientist points out that 42 is the atomic number for Molybdenum, a chemical thought to have been instrumental in the creation of organic life.
  • Go Mad from the Revelation: Happens quite a lot, actually.
    • The Total Perspective Vortex operates on exactly this principle. It reveals to any sentient being that has the misfortune to be plugged into it exactly how big the Universe is, and exactly where they are in relation to it. The mind of the victim is incapable of really grasping just how truly insignificant they really are and the victim invariably goes mad.
      • Zaphod manages to survive his encounter with it because when he was put into it, he was in a simulated universe meant specifically to contain him, thus he really was the most important person in that universe.
    • Prak The Truthful was exposed to a massive overdose of a Truth Serum and started spouting The Truth, The Whole Truth, and Nothing But The Truth. Some of this truth was so disturbing that witnesses had to leave because they believed they'd go mad if they heard too much. As for Prak himself all he could remember of it was that the best bits were about frogs. Meeting Arthur Dent sent him into mad fits of giggling as he found him to be even funnier than the frogs were. Eventually the laughter got so bad that it killed him
    • The Pan-Galactic Gargle Blaster can have this effect. One case mentioned in the Guide is that of Veet Voojagig, a promising scientist who went on a bender with Zaphod Beeblebrox and ended up becoming obsessed with disposable ball-point pens.
    • Wonko The Sane is a subversion. His revelation was the instructions included in a packet of toothpicks. He realised upon reading this that his only hope of avoiding madness was to disengage with the society that was now so far gone it needed to include instructions with packets of toothpicks. As such he built an inside-out house and named it Outside the Asylum so he could put the world "in" it. While Wonko's behaviour is definitely eccentric and he could be suffering from clinical depression over the disappearance of the dolphins his behaviour is actually perfectly sane.
    • Inverted with the Ultimate Question. There is a concerted effort to keep the Question suppressed on the grounds that if it ever became public knowledge the Universe would "go sane from the revelation" and there would therefore no longer be any need for psychoanalysis, and all the therapists would be out of work.
      • Having said that, Prak claims that the Question and the Answer can't both be known at the same time in the same universe, otherwise they would annihilate each other and take the Universe with them, leaving something even more bizarre and incomprehensible in its place. It is possible that this has in fact already happened (but there is a certain amount of uncertainty about it)
  • Good-Guy Bar: Milliways, the Restaurant at the End of the Universe. It's also implied that the Big Bang Burger Bar at the other "end" of the universe is one as well.
  • Gravity Is a Harsh Mistress: The art of flying lies in the ability to abuse W.E. Coyote's Rule of Cartoon Inertia. At its simplest, it is the art of throwing yourself at the ground and missing. This can only be accomplished by distracting yourself from the fact that you're about to hit the ground, thus inverting Dogbert's approach on Gravity Is Only a Theory.
  • Great Big Book of Everything: The titular Guide.
  • Guide Dang It!: The game.
    • Think it is hard enough? Try passing a link of it to friends who have both never read the series, nor told you what it is a game of.
    • An in-universe example would be, well, the universe, especially for Arthur Dent. It would seem almost impossible to navigate without the Guide. Hence the friendly reminder on the cover.
  • Hand Wave: Done everywhere, and, of course, always Played for Laughs.
  • Happy Fun Ball: The pinnacle of an alien culture's technology is a small red ball, indistinguishable from an Earth cricket ball, which when struck will link the cores of all the suns in the universe, resulting in their joint collapse into an enormous singularity - destroying existence as we know it. Does not come with a warning label.
  • Herald: Ford.
  • Heterosexual Life-Partners: Ford and Arthur.
  • How Do I Shot Web?: Arthur learning to fly in the third book.
  • Huge Rider, Tiny Mount: The Vogons and their gazelle-like creatures.
    • In this case the poor unfortunate gazelle-like creatures are used more as furniture than transport, as they were too fragile to support a full-grown Vogon and their backs would snap instantly under the strain.
  • Human Aliens: Due to Adams' rather sparse usage of description, a reader often gets the impression that most of the aliens encountered in the series are this, or Rubber-Forehead Aliens at most. Definitely averted with the Vogons, though, who are clearly demonstrated not to be.
  • Humans Are Morons: Arthur Dent is constantly being referred to as an ape or otherwise put down as a moron (mainly by Zaphod, though he isn't exactly bright himself.) Arthur and Trillian aren't actually particularly stupid - in fact, sadly, the eradication of all other members of the human species has raised the median human intelligence considerably.
  • Hyperspace Is a Scary Place: Travel through hyperspace is described as "unpleasantly like being drunk." "What's so unpleasant about being drunk", you say? Ask a glass of water.
    • Much worse if you're in a plural zone when it happens. You might just disappear, as happened to the unfortunate Fenchurch.
  • I Choose to Stay: In the 2005 film.
  • I'll Take Two Beers Too: Zaphod ordering Gargle Blasters. And Ford ordering six pints of bitter in the first book (three apiece for himself and Arthur).
  • Incompetence, Inc.: The Sirius Cybernetics Corporation makes a variety of shoddy products. Their complaints department takes up the major land masses on three planets and is the only division of the company to consistently turn a profit.
  • Indecisive Parody: The earlier books run on nonsensoleum, but Mostly Harmless is more like "hard" sci-fi with jokes in.
  • The Infinite: As a speed you can move at it is played for all the absurdity it is worth with the Infinite Improbability Drive. Where you can move at infinite speeds but only if the destination is really improbable.
  • Informed Obscenity: The word Belgium, while on Earth the name of a country, is elsewhere a very foul expletive. See Pardon My Klingon below.
  • Insane Troll Logic: Ford uses this to persuade Mr. Prosser to replace Arthur in front of the bulldozer, so that he and Arthur can go to the pub. He argues that since the mutual assumption is that Arthur is not going to get up from in front of the bulldozer, and that therefore Prosser and his men are resigned to standing around doing nothing, then they don't actually need Arthur to lie in front of the bulldozer, so Arthur is therefore free to go—but only on condition that Mr. Prosser lies down in the mud instead of him. (The book makes it clear that Mr. Prosser does this partly because he feels that, on some level, he deserves to be lying in the mud. In the radio series, it's Arthur who persuades Mr. Prosser to do this, because of Early Instalment Weirdness.)
  • Insignificant Little Blue Planet: Probably the most famous example, but Earth actually doesn't stay that way for long. See Earth Is the Center of the Universe for more details.
    • It's certainly viewed as this for the most part. The in universe Hitchhiker's Guide, which has an entire chapter devoted to towels, has a two word entry for Earth - "Mostly Harmless" - and this is an update after a decade of research; the previous entry was simply "Harmless." (This isn't Ford's fault; he wrote a lot more text, but the editors deleted it. The restoration of the text clues him in that the Earth is up and running again.)
  • It Runs on Nonsensoleum: The Heart of Gold and the Bistromathics drive, among other things.
    • For instance, a giant cup made out of solid marble being held up fifteen miles in the air by art.
    • The Bistromathic Drive is far more efficient than all that mucking about in hyperspace or Improbability Factors because it runs off a form of mathematics based off the calculation of restaurant bills.
      • Hey, when you break the laws of physics everything becomes absurdly simple nonsense. It's how bistros stay in business, so why can't we do the same for Casual Interstellar Travel?
    • The Bistromathics Drive is probably similar to how Earth is-was the greatest supercomputer in the history in the universe albeit on a smaller scale.
    • At one point in history, someone built a space ship powered by bad news, because as everyone knows nothing travels faster than bad news. Unfortunately, when it arrived at its destination, nobody wanted it.
    • Then there's the literally flying party...
      • Well, the partygoers were drunk and had the expertise to make the building do so.
      • And, as the book points out, the problem with a party that never ends is that all those things that only seem like good ideas at parties keep on seeming like good ideas...
  • It's a Small World, After All: Arthur is the only man to escape Earth before it's destroyed, and who should he run into almost immediately, in all the galaxy, than the only woman to escape Earth, and it turned out to be someone he'd met. Of course, this was due to the intervention of a spaceship powered by improbability, and the ship computer even suggests it's all interconnected, so it's a Justified Trope.
  • I Would Say If I Could Say
  • Jesus Was Way Cool: He's described as "a man who got nailed to a tree for saying how great it would be if everybody was nice to each other for a change".
  • Just Before the End: Every version starts with Arthur and Ford leaving Earth before it's destroyed.
  • Just Ignore It: The Ravenous Blugbatter Beast of Traal is a creature of such stupidity that it thinks that if you can't see it, then it can't see you. Daft as a brush, but very very ravenous.
    • This is also the principle that the Somebody Else's Problem field runs on; it takes advantage of the fact that people will normally just ignore anything they weren't expecting, can't explain, or don't want to worry about.
  • Large Ham: In most versions featuring audio of some sort, Zaphod is often played as a fresh large ham.
    • The print version pretty much portrays Zaphod this way as well. It's even more obvious when you know that when Douglas Adams wrote the original radio play, he based the character of Zaphod on similar characters played by actor Mark Wing-Davey, who played Zaphod in the radio show and television series. Large Ham is a quintessential part of Zaphod's nature.
    • Valentine Dyall's portrayal of Deep Thought. A multi dimensional super-computer is able to take hamminess to levels that are not normally physically possible.
  • Law of Conservation of Detail: Subverted to hell and back, probably deliberately. The narrative throws in references to bizarre alien places and things via the Guide frequently. A few of them pop up later in the same book or radio show, a few of them become Brick Jokes when a later book or show makes a Call-Back to them, and some quite clearly were random jokes that no one ever fleshed out or ever intended to.
    • A whole chapter in the fourth book is dedicated to Adams explaining this concept to the readers, stating it is the reason why he doesn't go into all the details of Arthur Dent's life, and why he sometimes omits entire periods of time.
  • Left Hanging: Partly because Douglas Adams is now, you know, living-impaired.
  • Literal-Minded: When Zaphod greets Marvin at Milliways with "Hey, kid, are we pleased to see you!", Marvin replies "No, you're not. No-one ever is."
  • Living Legend: The Guide notes that towels (in addition to several legitimate uses) let you cultivate this image. If you can hitch the length and breadth of the galaxy and still know where your towel is, then obviously you're a badass, and others will think nothing of loaning you some other minor item that you happened to recently misplace.
  • Long-Lived: Exaggerated with Marvin. By the end of So Long, and Thanks for All the Fish, he reveals that, thanks to time-travel, he is no less than 37 times older than the universe itself.
  • Loud of War: Vogon poetry.
  • Mechanistic Alien Culture: The Vogons are not-so-little Green Men whose overly bureaucratized society, like the Hierarchy in Star Trek: Voyager, may be taken as a parody or a deconstruction of this trope, with the over-bureaucratization standing in for over-mechanization.
  • Medium Blending: The yarn scene in the movie.
  • Memory Gambit: Zaphod setting up a scheme to learn who the ruler of the universe is, which involved giving himself self-imposed amnesia so that he could become president, allowing him to steal a ship equipped with the Infinite Improbability Drive so that he could find the hidden planet used to hide the aforementioned Ruler of the Universe.
  • Message in a Bottle: A fossilized towel, in the original radio version.
  • Mike Nelson, Destroyer of Worlds: The Vogons demolish populated planets for extremely petty and bureaucratic reasons, usually related to hyperspacial traffic-calming initiatives.
    • The entire population of the planet Krikkit who are described as being charming, delightful, intelligent, whimsical homicidal maniacs. They almost wipe out the universe without realising that doing so would take them with it. The fact of the matter is that they're really just patsies for Hactar, the Omnicidal Maniac who is pulling their strings.
  • Mile-High Club: Arthur and Fenchurch, sans plane.
  • A Mind Is a Terrible Thing to Read: The Belcerebons of the planet Kakrafoon, cursed with the social disease of telepathy by the Galactic Tribunal.
  • Monkeys on a Typewriter: As a result of the Infinite Improbability Drive, Ford and Arthur get approached by "an infinite number of monkeys who want to talk to us about this script for Hamlet they've worked out."
  • Morning Routine: The opening, with Arthur Dent waking up as normal to discover his house is about to be bulldozed... and his planet destroyed.
  • Mr. Exposition: The Book, and to a less literal degree, Ford and Slartibartfast.
  • Multiboobage: Eccentrica Gallumbits, the Triple-Breasted Whore of Eroticon VI.
  • Mundane Made Awesome: In the fifth book, Arthur is practically worshipped as a god for his incredible skills at... making sandwiches.
  • Natural End of Time: Milliways, The Restaurant at the End of The Universe is located here(about 570 billion years in the future). It's built with a shield and engines to protect the visitors and reset time so people can revisit it as much as they want. Ludicrous amounts of Compound Interest Time Travel are used to pay for the meals. The Big Bang Burger Bar inverts this by taking place at the beginning of time.
  • Nobody Poops: Lampshaded in the new radio series adaptation of Life, the Universe and Everything. "You know, in all this time I have never once ''flush''".
  • Nonindicative Name: Marvin is known as "The Paranoid Android," but he's not remotely paranoid. He's depressed, nihilistic, sarcastic, pessimistic, and a few other adjectives, but never paranoid.
    • Several people (including Marvin himself) refer to him as a "manically depressed robot". Whatever he is, he clearly doesn't suffer from manic depression (now formally known as "bipolar disorder"), which involves mood swings between manic and depressed extremes—we never see Marvin being manic. Of course, "manically depressed" isn't a medical term; perhaps it just means "enthusiastically, whole-heartedly depressed", which he is.
    • Ford calls him the Paranoid Android in The Restaurant at the End of the Universe segment when Marvin calls the group from the restaurant car park. Zaphod calls Marvin that before he and the others venture onto Magrathea's surface.
    • Arthur describes him most accurately as "A sort of electronic sulking machine"
  • Noodle Implements: Twice in the book series: Wowbagger the Infinitely Prolonged became that way due to an accident involving a particle accelerator, a liquid lunch, and a pair of rubber bands. The other was due to an incident with a time machine and a contraceptive, maybe.
    • The second one is the reason that Zaphod's direct ancestors are named in reverse order; his father is Zaphod Beeblebrox the Second, his grandfather the Third, and so forth, all the way back to Zipo Bibrok 5 × 10 to the 8th power or some damn thing.
      • Fenchurch's discarded undergarments and dress were also noodle implements in their own right as they massively changed three different lives for reasons not gone into.
  • Noodle Incident: Many, chief among which is the Great Collapsing Hrung Disaster of Betelgeuse VII. There was only one survivor, Ford Prefect's father, who was never able to satisfactorily explain what a Hrung was, nor why it should choose to collapse on Betelgeuse VII in the first place.
  • No-Respect Guy: Arthur.
  • Note to Self: Zaphod.
  • The Nudifier: Finite improbability generators were doing this in their early versions.
  • Older Than They Look: Early in the first installment, it's revealed that Zaphod Beeblebrox is about 200 years old, which means also that Ford Prefect is as well, since they were childhood friends. It's only mentioned in passing, though, and doesn't really matter much to the plot.
  • Ominous Floating Spaceship: The Vogon Constructor Fleet.
  • Omnicidal Maniac: Hactar. And because of him, also the people of Krikkit.
  • Once for Yes, Twice for No: Zaphod makes Eddie do this after gagging him.
  • Only Known by Their Nickname: The name Ford Prefect was born with is long since lost in the mists of time. Apparently he couldn't pronounce his own given name, causing his father to die of shame. Before he adopted the Ford Prefect moniker, he was known by the nickname Ix.
  • Only Sane Man: After being convinced the entire universe is insane, Wonko the Sane built an inside-out house and named it "Outside the Asylum". If the outside of the house is on the "inside", then everything on the outside is also on the "inside" and thus safely contained. (If you know topology, this makes absolutely perfect sense — see, he told you he was sane.)
  • The Outside World: The Krikkiters began life in a solar system which was surrounded by a massive cloud of black dust, leading to them believing that nothing else existed beyond the confines of their solar system. When an alien spacecraft crash-landed on their planet, they reverse-engineered it and managed to glimpse the universe beyond the dustcloud for the first time; unfortunately the experience turned them into Absolute Xenophobes and began the most terrible conflict in galactic history.
  • Outsourcing Fate: To the real President of the Galaxy, a little old man in a shed in the middle of nowhere. All he's interested in is feeding his cat, but occasionally people stop round and ask him what he thinks about certain things.
  • Overly Long Gag: In most versions, Deep Thought stalls for a good while before giving the philosophers the answer to life, the universe, and everything, knowing that they were hoping for something a little more satisfying after waiting seventy millions years for it. This is especially so in the live action miniseries.
    Deep Thought: The answer is... [long pause] you're really not going to like it.
  • Pajama-Clad Hero: Arthur. Between protesting the sudden impending demolition of his house and the Earth getting blown up, he hardly had much chance to change.
  • Paradise Planet: Bethselamin, a major tourist attraction for its natural beauty; unfortunately, all the visitors have started having a cumulative effect on the local environment, and the government is now taking steps to minimize the erosive effect - by means of surgery.
  • Pardon My Klingon: Apparently, "Belgium" is the most offensive word in the entire galaxy. There are other examples as well, such as "zark", "joojooflop", "swut", "turlingdrome", and so on, but "Belgium" is the worst of them.
  • Phrase Catcher: The Book itself. What book? The Hitchhiker's Guide to the Galaxy.
    Oh, that thing.
  • Pieces of God
  • Playboy Parody: There exists a magazine named Playbeing within this franchise. It's described as being equal parts galactic politics, rock music, and gynecology.
  • Power Perversion Potential: The Improbability Device
  • Precision F-Strike: In So Long, and Thanks for All the Fish and Mostly Harmless. Also the U.K. version of Life, the Universe and Everything (though a lot of readers prefer the censored version, because it adds more jokes, like "Belgium" being the worst obscenity in the galaxy).
  • Promoted to Love Interest: Trillian in the movie. In the novels, the relationship between Trillian and Arthur is somewhat schizoid — Arthur had a chance with her at one point before she became involved with Zaphod, but they get Ship Teased in Life, the Universe and Everything, get sunk in So Long, and Thanks for All the Fish when Arthur hooks up with Fenchurch, and actually have a daughter together (via sperm bank) in Mostly Harmless.
  • Puff of Logic: The Guide's explanation for what happened with God when it was proved the Babel Fish proved he did, and therefore didn't, exist.
    "But the Babel Fish is a dead giveaway, isn't it?" Says Man, "It proves you exist, and therefore you do not, Q.E.D."
    "Oh dear," says God, "I hadn't thought of that." And promptly vanishes in a puff of logic.
    "Well, that was easy." Says Man, who goes on to prove that black is white, and gets killed on the next zebra crossing.
  • Put on a Bus: Fenchurch after So Long, and Thanks for All the Fish
    • The Secondary Phase of the radio series does this to Trillian, explaining she's in an Arranged Marriage in some distant part of the galaxy.
  • Random Transportation: The Infinite Improbability Drive causes the ship to pass through every conceivable point in every conceivable universe almost simultaneously. In other words, you're never sure where you'll end up or even what species you'll be once you get there. It's therefore important to dress accordingly.
    • At one point, the space hitchhikers are stuck in a stunt-ship about to plunge into a sun (or, in the original radio version, a warship owned by an angry Haggunenon shape-shifter), and they discover a half-built teleporter which will allow them to leave but not to control where they go. (It sends Ford and Arthur back to prehistoric Earth.)
  • Rare Money: The Triganic Pu. There are eight Ningis to one Pu, but since a Ningi is a triangular rubber coin six thousand miles along each edge, nobody has ever collected enough to own one Pu.
  • Reality-Breaking Paradox: The second book states a theory which basically says that if anyone finds out the meaning of life, then the universe will end and reboot as something even harder to explain. (Another theory says that this may have happened.) Life, the Universe and Everything later Hand Waves away the Ultimate Question and Answer of Life, the Universe and Everything as causing such an event if anyone found out both.
  • Reassigned to Antarctica: The whole point of the Golgafrinchan B Ark. The Golgafrinchans planned to get rid of their useless third of the population (telephone sanitizers, television executives, hairdressers, etc.) by putting them all on a ship, telling them their home planet was doomed, programming coordinates to a random prehistoric planet, and causing the ship to crash land there. It worked out well, except everyone left on Golgafrincham was killed by a disease picked up from a dirty telephone.
  • Relatively Flimsy Excuse: The radio series has a subversion of the 'this autograph isn't for me' variant: "It's not for my daughter, you understand; it's for me." (It turns out to be a ruse to get Zaphod's signature on a contract he'd never have signed voluntarily.)
  • Rich Recluse's Realm: The former galactic empire suffered an epidemic of super-rich individuals who just couldn't be satisfied with any world they happened to settle down on. The planet Magrathea exploited this demand by building custom-designed worlds to serve as private domains for the wealthiest members of galactic society. Unfortunately, these luxury products became so popular that the reckless spending triggered an economic collapse that destroyed the empire, forcing the Magratheans to retreat into cryogenic suspension until a civilization capable of affording their services emerged.
  • Riddle for the Ages: The Ultimate Question to Life, the Universe and Everything, although there's a hint in Life, the Universe and Everything that it may be "Think of a number, any number."
  • Ridiculously Human Robots
  • Robot Buddy: Subverted with Marvin the Paranoid Android, and just about everything made by the Sirius Cybernetics Corporation.
  • Sanity Ball: Arthur starts off as the sane one. Ford quickly takes over this role. You know things have gotten weird when Zaphod gets the ball, however temporarily...
  • Sapient Cetaceans: In this series humans are stated to be actually only the third most intelligent creatures on Earth. The first is mice. But then, they are hyper-intelligent pan-dimensional beings who are actually running the Earth, which is a giant computer program, and the second is explicitly stated to be dolphins (who aren't in disguise and are still ahead of humans), and who knew about the impending destruction of Earth long before the humans themselves knew about it. The dolphins tried to warn them, but when the humans didn't understand, they left the planet quietly by their own means. Their last message is, "So long, and thanks for all the fish," and this all becomes important in the book So Long, and Thanks for All the Fish. At the end of So Long, and Thanks for All the Fish, it's all but stated outright that the Dolphins were responsible for restoring Earth.
    • The Movie even gave the dolphins a musical number as an opener, complete with a beautiful view of them shooting into the skies like rockets.
  • Sapient Ship: The spaceship Heart Of Gold is maintained by Eddie, a Sirius Cybernetics Corporation computer with a sickeningly cheerful and optimistic programmed personality. Other equally unlikable computers have been installed to run other functions on the ship as well, right down to automated doors run by programs that live for the chance to open and close for someone. At one point Zaphod discovered that Eddie had an emergency backup personality - unfortunately, it was worse.
  • Sapient Tank: Marvin provokes a massive but simple-minded robot-tank that's standing on a bridge connecting two high office towers into showing off its destructive arsenal, and the drone promptly shoots the bridge supports, resulting in it falling down and getting smashed.
  • Saw "Star Wars" Twenty-Seven Times: At one point, Wowbagger the Infinitely Prolonged asks his ship computer if there's any movie he hasn't already seen "over thirty-thousand times."
    Computer: There's Angst in Space: you've only seen that 32,803 times.
  • Science Is Wrong
  • Scifi Writers Have No Sense Of Scale: Adams goes on both sides, and the work is satirical, so it's not a big deal really. However if you are the sort to put your mind to it...
    • On one side, one of his quotes in the first book is incredibly fitting and is even the page quote for Conveniently Close Planet: "Space is big. Really big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space..."
    • However on the other side of the scale is the fact that the characters speak of the galaxy they live in as being the be-all-end-all of everything... then they come out with the infinite improbability drive which goes through ...every point in the Universe simultaneously.... Entities from other galaxies do appear at times, so presumably most everybody hangs out in the neighborhood where they can be sure of finding a Pan Galactic Gargle Blaster when they need one.
  • Scrabble Babble: Arthur creates a Scrabble game in order to help the caveman evolve, which proves fruitless since the only word they know is "grunt" (and they can't spell it). The Scrabble game proves useful in order for Ford and Arthur to find out what the Question to the Ultimate Answer is.
  • Sealed Evil in a Can: The Galactic government sealed away the entire planet of Krikkit, along with its sun - although 'evil' is a strong word for their Blue-and-Orange Morality. Especially since they were being manipulated by Hactar in the first place, and when everything becomes apparent to them, they turn out to be quite nice.
  • "Second Law" My Ass!: Marvin is a low-grade version of this trope: he'll obey, but he won't like it, and he'll never let you forget it.
  • Security Blanket: Always know where your towel is. And providing psychological support is only one of its uses.
  • Secret-Keeper: Stephen Fry, of all people, has claimed that Douglas Adams once told him in confidence "exactly why 42." Apparently, "The answer is fascinating, extraordinary and, when you think hard about it, completely obvious." However, Fry vowed to take the secret with him to the grave.
  • Seekers: Most of the core cast, really.
  • Seen It All: Wowbagger the Infinitely Prolonged.
  • Self-Deprecation: "Any people you may meet are merely the products of a deranged imagination." All the people are, of course, the product of Douglas' imagination.
  • Shiny-Looking Spaceships: The Heart of Gold, which makes sense because Zaphod steals it just as it is being christened.
    Ford: I think this ship is brand new!
    Arthur: Why? Have you got some exotic device for measuring the age of metal?
    Ford: No, I just found this sales brochure lying on the floor.
    • Swiftly averted at first. The Dentrassi sleeping quarters are so dirty and unimpressive, Arthur actually questions that he's on a spaceship. Neither the movie and show make the rest of the Vogon ships much more enjoyable.
  • Shoot the Shaggy Dog: So Long, and Thanks for All the Fish. Not the book itself, which has the happiest ending of any in the series, but what Mostly Harmless, the next book in the series, did to this happy 'ending'...
  • Shout-Out: There are several to singers like Paul McCartney and David Bowie, not to mention the not even remotely subtle hints that Elvis Has Left the Planet. There's also the question "How many roads must a man walk down?", which is proposed as a potential Ultimate Question of Life, the Universe, and Everything (the person who proposes it varies depending upon the adaptation, but the mice generally settle on this as an acceptable replacement for the actual question). There are, of course, many, many more.
  • Silly Reason for War: The war between the G'Gugvuntts and Vl'hurgs is trigered by Arthur uttering "I seem to be having tremendous difficulty with my lifestyle" which in the Vl'hurg tongue is the most dreadful insult imaginable. The words bizarrely reached their ears and this left them no choice but to declare war on the G'Gugvuntts, which went on for a few thousand years and decimated their entire galaxy. They eventually learn the origin of the misunderstanding and join forces against the Milky Way but "due to a terrible miscalculation of scale" their entire invasion fleet is accidentally swallowed by a little dog.
  • Sinister Geometry: The Vogon ships in the movie.
  • Sink or Swim Fatherhood: Arthur with Random.
  • Sliding Scale of Idealism Versus Cynicism: Firmly cynical, with a brief one-book excursion to visit the idealistic side.
  • The Slow Path: One of the ways in which the universe keeps kicking Marvin in the teeth is that he keeps getting sent back in time but never forward, resulting in him just waiting around to intersect with the rest of the cast again. By the end of his life he is more than 37 times older than the universe itself
  • Sound-Effect Bleep: In the radio version of Life, the Universe and Everything, "Most Gratuitous Use of the Word * engine roar* in a Serious Screenplay".
  • Sound-to-Screen Adaptation: As mentioned above, was initially a radio series before being adapted as novels. Inverted when some of the later radio episodes wound up being based on books, and then subverted (or is it Double Subverted?) when the adaptation of Mostly Harmless got a Deus ex Machina to counteract the Sudden Downer Ending of the book.
  • Small Name, Big Ego: Zaphod. Downplayed in that he's a Big Name, Big Ego.
  • Space Age Stasis: Zig-zagged. On one hand, new technologies are introduced from time to time — see for instance the Infinite Improbability Drive, later made obsolete by Bistromatics. On the other hand, the protagonists have traveled in time from two million years in the past to the literal end of the Universe, and the basic technology (FTL starships, Artificial Intelligence, Force Fields) seems to be similar everywhere. This receives a Lampshade of sorts in the books, where Ford deduces from a spaceship's antiquated design that they must be two million years in the past.
  • Spanner in the Works: The aforementioned Gambit fails because Arthur is absolutely the worst cricket bowler ever.
  • Spared by the Adaptation: Pretty much all the main characters (yes, that includes Marvin) in the Radio adaptation of Mostly Harmless.
  • Spoiler: In-universe example, at the beginning of the missile attack, although this is done ostensibly in order to reduce suspense-induced stress (the narrator says so). It does preserve a minor piece of suspense, however, by not telling us exactly whose arm is bruised.
    • See also: Peril-Sensitive Sunglasses.
      ** The Infinite Improbablity Drive is created by putting an atomic vector plotter into a source of Brownian motion, which happens to be a "nice hot cup of tea."
  • The Stinger: The reveal of the identity of the person who bruised their arm in the missile attack comes at the end of the radio and TV episode it occurs in, and the end of the chapter in the book.
  • Suckiness Is Painful: Vogon poetry is of course the third worst poetry in the Universe. The second example is even more hilariously painful, and the first thankfully perished with its creator in the Earth-Shattering Kaboom that opens the plot.
  • The Stormbringer: Rob McKenna, a minor character, claims that it always rains wherever he goes, and he has a weather journal to prove it. The narration reveals that he's actually a rain god who is completely oblivious to his own divinity, and as such he compels the clouds to "be near him, to love him, to cherish him and to water him."
  • Sudden Downer Ending: At the end of Douglas' last book, everyone but the Vogons are dead.
    • Except Adams was planning to write another book, which suggests that they actually survived. As indeed they did in the radio adaptation of the later books, and the Colfer book.
  • Sufficiently Advanced Alien: The mice, the Magratheans.
  • Take That!: Ever wondered why the worst poet in the universe was changed from Paul Neil Milne Johnstone in the radio series to Paula Nancy Millstone Jennings in all other versons? It's because Johnstone was a real poet who was at university with Adams; though "amused" at being called the worst poet in the universe, he objected to his address being broadcast (instead of "Beehive Court, Redbridge", Paula lived in "Wasp Villas, Greenbridge"). The snippet of Paula's poetry seen in the TV series ("The dead swans lay in the stagnant pool...") is a genuine poem that Johnstone wrote. Johnstone went on to be quite a successful poet, but he admitted that the stuff he wrote as a teenager sucked.
    • "Young Zaphod Plays It Safe" is mostly a That That to Ronald Reagan. How subtle it is depends upon the version; there's one that simply name-drops one of his speeches (which would qualify as Viewers Are Geniuses for younger viewers who aren't deeply conversant with the politics of The '80s) and another version apparently outright names him. It's saved from being too over-the-top by Adams' whimsical humour, of course.
  • Talking the Monster to Death: Marvin does this by accident, by plugging himself into a ship's computer and telling it how depressed he is. This also kills two soldiers whose life support is connected to the computer. Subverted when he talks a tank to death. He actually tricks it into sending itself plunging to its doom, rather than making it suicidally depressed. He did succeed in talking he bridge it was on to death, however.
  • Tannhäuser Gate: Mentioned by Wowbagger the Infinitely Prolonged in And Another Thing....
  • Terminator Twosome: Mostly Harmless. On the good side, Ford and Arthur. On the evil side, the Guide Mk II.
  • Terrain Sculpting: Slartibartfast once won an award for his work on the fjords in Norway.
  • Theory of Narrative Causality: Justified first with the Infinite Improbability Drive, then the Mk II Guide's reverse temporal engineering.
  • Thing-O-Matic: Ford's Sub-Etha Sense-O-Matic, the Kill-O-Zap guns, among others.
  • Think Nothing of It: Zaphod takes this literally.
  • 13 Is Unlucky: The evil Guide-bird was kept on floor thirteen.
  • Time Abyss: Thanks to a great deal of Time Travel and taking The Slow Path, Marvin reaches a nearly impossible age. By the time he dies, Marvin is thirty-seven times older than the universe itself.
  • Time Travel: Including Arthur and Ford being sent back to prehistoric Earth, and things getting really, really messed up by the time we get to Mostly Harmless (which results in a really, really messed up Random).
  • Time-Travel Tense Trouble: Dr. Dan Streetmentioner's handbook willan haven been the quote-giver.
    • It should be noted that the Guide itself doesn't even bother with the tenses, and simply mentions that they don't use the future perfect tense, because it was found not to be.
      • The text gives some examples of the usage of the entirely correct tenses, for about one paragraph, following mentioning the book by Dr. Streetmentioner, and stopping before the note about dropping the 'future perfect' tense.
  • Timey-Wimey Ball: Since the whole Time Travel thing (and indeed pretty much every other sci-fi concept) is played for laughs, don't expect consistency. This is lampshaded and Played With constantly.
  • Translation: "Yes": Ford's former alias was "Ix", which means "Boy who is unable to satisfactorily explain what a Hrung is, or why it should collapse on Betelgeuse Seven".
  • Translator Microbes: Lampshaded with the Babel Fish.
  • The Trickster: Zaphod and, to a lesser degree, Ford.
  • Trickster Transformee: In all depictions, a number of hyper-intelligent pan-dimensional beings are found to have been transformed into mice by Deep Thought so they can monitor Earthly life in our dimension. As the novel demonstrates, they can't do much for themselves without technology, so they used their vast intellects to conduct experiments on human beings while posing as non-sapient laboratory rodents. In the film, Benjy and Frankie continue this trend by sabotaging the Heart of Gold and stealing hairs from Arthur's head to further their own mysterious plans.
  • Unfazed Everyman: Arthur Dent, despite being entirely out of his depth, can be remarkably blasé about the things that happen to him.
  • Unkempt Beauty: Trillian (Zooey Deschanel) in her first main story scene in The Film of the Book.
  • Unknown Rival: Agrajag and Arthur.
  • Unusual Euphemism:
    • Belgium!
    • To a lesser extent, Holy Zarquon's Singing Fish.
  • Utility Belt: Always know where your towel is.
    • Other hitchhikers had seen fit to modify their towels in exotic ways, weaving all kinds of esoteric tools and utilities and even computer equipment in their fabric.
  • Villain Decay: The Vogons suffered from this over the many iterations of the story. Although they're described by Word of God as "not actually evil", in the radio series they're malicious and vindictive Punch Clock Villains, taking definite satisfaction in throwing hitch-hikers out of an airlock to apparently certain death, and in the first five books they're even worse, obliterating every possible trace of the main characters from every alternate universe just to finish a demolition job. In the movie they're more like Big Bad Wannabes, opting not to track down the fleeing heroes because it's their lunch break. In the 6th novel, there's even a nice Vogon.
  • The Wall Around the World: Wonko the Sane constructs a wall around his home to fence in the world, which he calls "the Asylum."
  • Watching the Sunset: Marvin's seen it. It's rubbish.
  • Weapons-Grade Vocabulary: Vogon poetry, which makes the listeners seriously ill or worse. It is advised to take some other option than that.
  • Weirdness Censor: The "Somebody Else's Problem" field, which makes people dismiss anything unusual as "somebody else's problem". Much easier (and more power-efficient) that real Invisibility.
  • Weirdness Magnet: The luckless Arthur; more literally, the Infinite Improbability Drive, which creates weirdness.
  • Who Wants to Live Forever?: Wowbagger the Infinitely Prolonged.
  • Write Back to the Future: The towel in the lava flow on prehistoric Earth.
  • You Can't Go Home Again: Because, as has been mentioned, it exploded. Doesn't stop them from doing so. Twice.


Video Example(s):

Alternative Title(s): The Hitchhikers Guide To The Galaxy


Love and Kisses, Zaphod

In the film of "The Hitchhiker's Guide to the Galaxy," Zaphod Beeblebrox's stock with Tricia McMillan, a.k.a. "Trillian," tanks rather severely when she learns that he signed off on the order for the destruction of the planet Earth, thinking he was signing an autograph.

How well does it match the trope?

5 (5 votes)

Example of:

Main / TrickedIntoSigning

Media sources: