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"One day, I found a big book buried deep in the ground. I opened it, but all of the pages were blank. Then, to my surprise, it started writing itself: 'One day, I found a big book buried deep in the ground...'"
The "Russian Doll World" - the worlds are physically inside one another. The most common way to travel between them is changing size. This dates back to the sci-fi pulps of the 1930s, even though the atomic model that likely inspired this trope (where electrons orbited the nucleus like planets around a sun) had been superseded as early as 1925.
The Recursive Simulacrum, or "Matrix Hypothesis" - Building a ship in a bottle, on a ship in a bottle, basically. Someone creates an artificial world, be it a computer simulation, virtual reality, pocket universe or a miniature planet. Then someone in that world creates another simulacrum. Bonus points if an inhabitant of the last simulacrum builds another one, or the original creator's world turns out to be a model itself. Game Within a Game is a subtrope.
Single reality - There is only one world, that is somehow enclosed inside itself. Possibly in several instances.
A similar phenomenon in art and graphic design is the Droste effect, where a picture includes a smaller copy of itself, that copy has a smaller copy of itself, and so on.
Note that there has to be more than two layers shown or implied, or a path inward must paradoxically lead to the outer world (which is closer to an actual recursive equation.) Otherwise it likely falls under one of the simpler Otherworld Tropes. Shrinking into a subatomic world, for instance, does not count as a Recursive Reality unless a character can shrink further and find an even smaller world within, or somehow end up back where they started.
Recursive Canon is a specific subtrope where the work postulates its own existence in-story, or a fictional version of the author also exists in-story (allowing the characters to criticize it or the author or change it, of course.) Compare Mutually Fictional.
Not to be confused with Literary Agent Hypothesis, where the work postulates its own existence in real life, or the existence of a fictional author in real life (as "researched" by the real author, of course.) Compare Daydream Believer, Mythopoeia.
Compare with most Otherworld Tropes, particularly Expendable Alternate Universe, where the importance of all these alternates is downplayed by the assertion of a "real world", Matrix Hypothesis (also known as Recursive Reality), and Up the Real Rabbit Hole, where the "prime" level of existence is called into question. The latter is often paired with Recursive Reality for its headache-inducing potential. See also Daydream Believer, Welcome to the Real World.
Also, try to keep in mind the MST3K Mantra while reading any of the examples. Believe us, it's just not worth it to lose your sanity to these. Because a recursive reality is physically impossible and never will happen.
Spoileriffic trope, as the layering is usually a majorplottwist.
The Marvel Vs. DC crossover and the Amalgam Universe that resulted was explained by setting Marvel and DC continuities (each with their own fiction, past, present and future, parallel dimensions and alternate timelines) in discrete multiverses created by entities called "The Brothers". Those guys live in the "Omniverse", which supposedly contains every real and fictional universe ever.
The Brothers are often interpreted by fans as being forms of Marvel's "The One Above All" and DC's "The Presence", each of which is God in their respective universe.
Hasse's He Who Shrank inspired a number of similar comic book stories: Lost In The Microcosm (originally printed in the EC series Weird Science #12, 1950), The World Beyond (Strange Tales #32, 1954) and I Shrunk Away to Nothing! (Journey Into Mystery #56, 1960), the latter two published by Atlas, the predecessor to Marvel Comics.
A short Darkwing Duck comic published in an issue of Disney Adventures (titled "Cogito Ergo Something") has Launchpad holding up a dandelion and positing the existence of countless Recursive Realities to Darkwing. Sure enough, the perspective changes, and we see another world inside the dandelion seed where an alien Launchpad is presumably saying the same thing to an alien Darkwing about an alien flower. Then the perspective changes to inside the alien flower, and we see the "normal" world again (inside the inside), where Darkwing promptly blows the whole idea off as nonsense and blows the dandelion seeds to the wind.
In one tale, the cosmic entity Kubik was educating the younger cosmic entity Kosmos on the structure of the universe by growing from the mortal level through the galactic, eventually becoming larger than the universe, than larger than the trans-cosmic realm where universes exist ... only to pop up to the level of quarks, and growing up past the atomic level back to the mortal realm. As Kubik said it; "The center of the universe is wherever you happen to be at the moment."
Grant Morrison's The Filth shows several microcosm-style environments (including a city contained by an enormous ship and a miniature world populated by "I-Life"). The Hand's base, The Crack, is implied to be a microscopic base created to harvest the ink leaking out of the pen Greg uses to write the note for his (probably failed) suicide. The Crack, in turn, is home to the Paperverse, the fictional reality that The Hand mines for exotic technology.
"This is the shape of reality. A theoretical snowflake existing in 193,833 dimensional space. The snowflake rotates. Each element of the snowflake rotates. Each rotation describes an entirely new universe. The total number of rotations are equal to the number of atoms making up the Earth. Each rotation makes a new Earth. This is the multiverse."
Said by someone who developed a quantum computer in 1945 which uses the shape of the multiverse to compute and create situations upon their Earth to solve problems. That's right: using the entire multiverse to effect changes upon one single world within it. So fractal it hurts.
All-Star Superman shows Superman, wondering how the world will function without him, creating a miniature Earth in a miniature universe. It grows relatively quickly, and the last panel of the issue shows someone drawing a comic-book character, declaring "This time, I'll change everything..." The character is Superman - it's our world, the man doing the drawing is Joe Shuster, and we have a loop.
The ending to Irredeemable is basically this: Plutonian having to absorb deadly radiation surrounding Earth or be killed with a weapon so powerful it can kill him completely. After he does so his body begins to be slowly ravaged. As chance to finally redeem Plutonian, Qubit uses inter-dimensional technology to send Plutonian's original essence before his Face-Heel Turn to a parallel universe where he can end up right. As a result Plutonian's essence inspires Joel Shuster and Jerry Siegel to create Superman which in turn gets Mark Waid into comics and eventually writing Irredeemable.
Fables mentions this trope with a side-character. A queen is punished for her infidelity to her sorcerer-king husband by being transformed into a tortoise, cursed to wander with a fragile teacup balanced on her shell, with the teacup containing the archipelago on which she grew up. Later we see a short story where there is a tradition amongst the people of the archipelago to touch the "wall" surrounding their sea, and it turns out there is a debate in their community between people who hold different views on whether the tortoise exists or not, and whether there are Turtles All The Way Down. As far as the reader can tell, both schools of thought are wrong, unless it subsequently turns out that the greater Fables multiverse is on a tortoise of its own.
The Great Fables Crossover introduces the Fables (who have long theorised that the popularity of their stories amongst the mundane humans of Earth are tied to their own power, though this has never been conclusively proven, and nobody's sure whether they exist because of the Mundies' stories, or if the Mundies have stories about them because they already existed) to the Literals (who are the embodiments of literary devices, like the Anthropomorphic Personifications of Revision, Genres, the Deus ex Machina, and their progenitor, the Pathetic Fallacy, Anthropomorphic Personification of Anthropomorphic Personifications). The antagonist of this arc is Kevin Thorn, (son of the Pathetic Fallacy, father of Revise) who, as the personification of story-telling itself, has gotten thoroughly fed up with his characters all acting on their own and making a mess of his overall story, and has resolved to rewrite things so that the entire Fables multiverse (including their equivalent of the Mundy world) never existed in the first place, but fortunately his braindead twin Writer's Block keeps preventing him from actually making the multiverse-ending flourish of his pen. The screwing around with meta-concepts, breaking of the Fourth Wall (which the Literals are aware of but the Fables aren't) and general Bizarro Episode feeling of this arc causes Bigby and Snow to make the decision to treat it as an in-universe Big Lipped Alligator Moment, and try to get back to their already-complicated lives as quickly as possible.
The crossover miniseries Star Trek: The Next Generation/Doctor Who: Assimilation▓ (obviously) has the Doctor meeting the TNG cast, whereas previously, episodes of the regular Doctor Who show referenced Star Trek as a fictional series. He lampshades it in his own typically enigmatic fashion, casually remarking that he can feel his memories changing after he enters the Trekverse— he recognizes Worf as a Klingon, but recalls that he didn't know the word a few minutes ago.
Inception has dreams within dreams within dreams (and so on) with time slowing down exponentially with depth, allowing someone to spend decades inside dream worlds. Reached Memetic Mutation where all Recursive Realities henceforth are named with the meme "_____ within a _____. _____ception"
The MacGuffin that draws Edgar Bug to Earth in the first Men In Black film is a miniature galaxy. The final scene reveals that our galaxy is just like the MacGuffin, and lies several layers down within a galaxy-marble that a universe-sized alien on a floating sky island is playing marbles with. (According to the makers, the ending was not meant to be taken literal, as it was simply a gag put in to explain Frank's earlier statement.)
Men In Black II pulls a similar gag by showing a world inside a locker where K's watch is a symbol of worship, then at the end, K shows J that their world is also simply inside a larger locker (doesn't work quite as well as the first film, the moment you think about it). An alternate ending has J going on vacation and ending up on the world inside the locker, being the size of its inhabitants, which implies that either there is some sort of change in size when you go through the locker door, or that the lockers are more of a Portal Network.
Todd Haynes' Bob Dylan biopic I'm Not There uses a form of this to analyze Dylan's ever-changing personality by having him played by five different actors (and one actress), each of whom's story is depicted in a different genre and visual style. Christian Bale's Bob Dylan expy has his story done in documentary style, and his character was played by Heath Ledger's Dylan in an in-universe Bio Pic. An image of a young Bale appears in a high school yearbook of the Cate Blanchett Dylan, implying that her story is another movie-within-a-movie (or perhaps a drug-induced hallucination), supported by the fact that her segment is shot in the style of Fellini's8Ż. Richard Gere, playing Billy the Kid, is antagonized by Pat Garrett, played by the same actor who plays a reporter who harasses Blanchett, implying that the entire story take place within her mind. And that's only four of them... Several of the stories seem to exist within the minds of one Dylan or parallel to the events of another.
Rainer Werner Fassbinder adapted Daniel F. Galouye's 1964 novel Simulacron-3 into the German movie Welt Am Draht (aka World On A Wire) The protagonist maintains a computer simulation of a whole city. After strange events happening in the real world it is revealed that the real world is also just a computer simulation constructed in a higher plane of existence. The movie was released in 1973, so is possibly the first film to adapt this trope. Simulacron-3 was also adapted into the 1999 American film, The Thirteenth Floor.
The Matrix focuses on a war taking place within two "layers" of a Recursive Reality. There's the eponymous Matrix, a computer simulation created by machines to imprison human minds; and the alleged "Real World" filled with freed humans, and their city, Zion...and the machines trying to kill them.
If Fanon is to be believed, Zion (and with it, the rest of the "Real World") is itself another Matrix.
Charlie Kaufman's directorial debut, Synecdoche, New York, is about a playwright who, as part of his new play, creates a life-size model of New York in a warehouse filled with thousands of actors. This model contains a warehouse, which contains another life-size model of New York, which contains another warehouse...
Kaufman's earlier screenplay, Adaptation, is the result of his struggle to write an adaptation of The Orchid Thief, and is about the story of a screenwriter character named Charlie Kaufman, who struggles to write an adaptation of a novel titled The Orchid Thief. The fictional Charlie gives up, too, and writes a screenplay titled Adaptation, which is about, well, you can probably guess...
Charlie Kaufman: (speaking into tape recorder) We open on Charlie Kaufman. Fat, old, bald, repulsive, sitting in a Hollywood restaurant, across from Valerie Thomas, a lovely, statuesque film executive. Kaufman, trying to get a writing assignment, wanting to impress her, sweats profusely. Fat, bald Kaufman paces furiously in his bedroom. He speaks into his hand held tape recorder, and he says: "Charlie Kaufman. Fat, bald, repulsive, old, sits at a Hollywood restaurant with Valerie Thomas..."
In the movie Spaceballs, the villains actually put in a video of their own movie, and go to the scene where they are watching it, seeing an infinite number of themselves watching themselves.
Dark Helmet: What the hell am I looking at? When does this happen in the movie?
Colonel Sandurz: Now! You're looking at now, sir! Everything that happens now is happening now.
Dark Helmet: What happened to "then"?
Colonel Sandurz: We passed it.
And after another incomprehensible exchange...
Dark Helmet: When will "then" be "now"?
Colonel Sandurz: Soon!
This is the central point of eXistenZ - the protagonists are confused about how many levels of virtual reality Game Within A Game there are, and what they're supposed to do to win. And in the end, they still aren't sure if they're still in the game or not.
The Fountain is a film about a man hunting for the Fountain of YouthWho Wants to Live Forever?. It features the same two characters in three time periods. Given that, you assume they succeed, and Complications Ensue when the girl gets sick and threatens to die on him due to Phlebotinum Failure. But no: the past timeframe is the plot of a book about Tom as a conquistador, told by the dying present day wife, and Tom's character Ascends To A Higher Plane Of Existence in the future timeframe, where he bodily intervenes in the plot of the uncompleted book. Meanwhile, the present Tom does find the Tree of Life, but it's too late to save his wife, and the Tree in question is dying, so he plants another one over her grave where she predicts it will resurrect her as a tree...at the end of the story, the conquistador succeeds in living forever when he stabs the bark of the tree and the immortal tree consumes him. He drops his ring, a a gift from the Spanish Queen, which the future Tom picks up. It turns out to be the wedding ring that the present Tom had lost.
In the movie Last Action Hero, in Jack Slater's universe there are movies where Sylvester Stallone takes up Arnold Schwarzeneggar's roles. This is a movie within a movie within a movie. The Nostalgia Critic (a fictional character) reviews the whole thing, adding another layer.
Horton Hears a Who! is about an elephant who hears voices from a tiny town called Who-ville, built on a dust mite. In the animated version, there's a Stinger where the mayor of Who-ville hears voices coming from a Who-scaled dust mite...
In The Thirteenth Floor, the scientists are creating a simulation they can download their brains into. But it works both ways, the simulations can upload into the real people Eventually, one of the scientists realizes that their own world is a simulation and people have been downloading themselves into him and his friends. One of the people from the layer above starts to treat him like a person when they realize he's built a new layer of this reality and he gets to upload into the mind of someone in the layer above.
In Cube 2: Hypercube, Kate at one point opens a door to escape someone who turned murderer, accessing the opposing door from the same room she is already in. Even the madman is a bit baffled at this.
Experimental Soviet documentary film Man with a Movie Camera is all about this. The titular man with the camera is shown over and over again, filming the movie. At one point the film stops and reveals still images, because the editor is taking a break. Another sequence shows the editor cutting the footage together, with the resulting footage then playing. At the end an audience assembles in a theater and watches Man with a Movie Camera.
Print Gallery lithograph by M. C. Escher depicts a man in an art gallery looking at a picture of a harbour. As the eye follows the scene clockwise the harbour expands into a city, which expands into a detail of a building containing a gallery full of Escher's drawings, which turns out to be the gallery in which the man is standing. The center of the picture is a blurry white spot.
There is a documentary and a website "Escher and the Droste effect" about an attempt to figure out what would be in the white spot. The answer turned out to be the picture itself, shrunk and rotated. Of course that image would still have a white spot to be filled with another picture...
The Mathemagician stopped what he was doing and explained simply, "Why, in a box that's so small you can't see it—and that's kept in a drawer that's so small you can't see it, in a dresser that's so small you can't see it, in a house that's so small you can't see it, on a street that's so small you can't see it, in a city that's so small you can't see it, which is part of a country that's so small you can't see it, in a world that's so small you can't see it."
Then he sat down, fanned himself with a handkerchief, and continued. "Then, of course, we keep the whole thing in another box that's so small you can't see it—and, if you follow me, I'll show you where to find it."
Older Than Print: The Arabian Nights is the Trope Maker for the metafictional version — For example, Scheherazade tells the story of The Fisherman and the Genie, where the fisherman keeps the genie from killing him by telling it The Tale of the Vizier and the Sage Duban, during which the evil vizier tells his king The Tale of the Husband and the Parrot.
Spoofed by Hungarian writer Frigyes Karinthy who takes it to ridiculous levels.
The 19th century novel The Manuscript Found in Saragossa has a similar structure — Alphonse van Worden meets, imagines, or reads about a number of colorful characters in intertwining stories, in the course of his journey to Madrid.
Brian Aldiss' Report on Probability A presents a circular sequence of worlds. Mrs Mary is being watched by her three servants, G, S and C, who are being watched by some aliens from a parallel universe, who are being watched by scientists observing a rift in reality on the top of a hill, who are being watched by... until we come to the observers in the "outermost" reality, who turn out to be the figures in a painting in the cafe that G, S and C frequent.
In Piers Anthony's Xanth series, Princess Ida has a tiny moon the size of a baseball that orbits around her. The moon contains a whole world with its own Ida, and that Ida has a moon with a different world on it, but that moon also has an Ida, who has a moon and so on and so on and so on. Faun And Games was about exploring these moons, and the main character goes through at least six layers.
Actually he only went down three layers, and learned of a fourth.
In the following book, and in many others beyond, they learn of more and more moons in the line, though past Fractal (#16) the sequence gets murky. In a recent book, Air Apparent, it turns out there is in fact a finite number of moons, and it is possible to cycle through them all the way to Earth, and now it is possible to go back to Xanth in the same fashion.
House of Leaves is about Johnny Truant, who's editing Zampanˇ's manuscript about a documentary made by Will Navidson. Neither the documentary nor Will Navidson exist in Johnny's universe, and they may or may not exist in Zampanˇ's universe. This is the most simplified description possible.
In Ubik: The Stinger indicates that Runciter is in a deep-freeze afterlife just like the main cast was, and there's another version of Joe Chip feeding things down to him just like he fed things down to the "dead" Joe Chip. And Here We Go Again...
In The Three Stigmata Of Palmer Eldritch, it's an article of faith among many Martian colonists that the drug Can-D does this, rather than merely causing shared hallucinations, as most non-users believe. Things get much more ambiguous when Eldritch brings an alien drug, Chew-Z, back from the Prox system.
Toyed with in Diane Duane's The Book of Night with Moon. There's a Prime Reality, but it certainly isn't our Earth, and there's nothing better or worse about a given layer. Those layers closer to the prime reality have rippling effects on the surrounding realities, especially those further down the line, though. Taking a chunk of the biggest Russian doll is bad. Smudging the paint on the smallest might be universe-destroying for the bigger dolls.
Greg Egan's Diaspora is a Recursive Reality, beginning with the computer network the posthuman protagonists live in and ending in a more or less endless number of non-euclidean universes.
In Jasper Fforde's Thursday Next novels, all the worlds of literature exist in a parallel multiverse called the Bookworld. First Among Sequels features two fictional versions of Thursday herself. If you think about it the books they come from must contain another version of the Bookworld itself.
At the end, Thursday observes the remaking of the first Thursday Next book. The "on-stage" part is cut-and-pasted from The Eyre Affair.
And, of course, the "Outworld" - the real world that Thursday comes from - is a fictional world written by Jasper Fforde. She doesn't think so, but occasionally something happens to make her wonder.
In Jostein Gaarder's Sofie's World, Sofie and Alberto break out of their fictional world, written by Albert Knag, into the "real" world... Which is, of course, also fictional, since it was written by Jostein Gaarder. And who knows how many more layers there might be...?
One of the oldest Science Fiction examples is He Who Shrank by Henry Hasse, originally printed in 1936 in Amazing Stories. The protagonist is injected with a serum that causes him to shrink smaller than an atom, where he discovers that every atom is a solar system, with a nucleus for a sun and electrons that orbit like planets. He shrinks through several universes until he lands on our world, and tells his story to a writer who unsuccessfully tries to sell the story to a newspaper as nonfiction.
Also Science Marched Oneleven years before the story saw print - quantum mechanics began to supersede the Bohr-Sommerfeld orbital model as early as 1925, although the Bohr model is still taught today because 1. it accurately predicts the behavior of hydrogen atoms and 2. ease of depiction (subsequent models are heavy on equations and don't actually look like anything.)
Stephen King's firstThe Dark Tower book implies that Roland's universe is a Recursive Reality, specifically an atom in a blade of grass in our own universe. Later books muddle this somewhat.
In later books, you find out it also counts as Transfictionality and Recursive Canon. So the universe is in a blade of grass in another universe, written by the author.
More specifically, the Dark Tower setting is more like a mobius strip of recursion, wherein our world simultaneously contains and is contained within Roland's universe, each being both lesser and greater than the other. The Dark Tower tends to be somewhat insanely metaphysical.
The atom-in-a-blade-of-grass thing was never established to be definitely true; more the the Man in Black was just asking Roland to ponder all the infinite possibilities of creation. The whole thing was just a diversion to fuck with Roland's head and get him good and confused while the Man in Black slipped away unnoticed.
But the Dark Tower canonically manifests in our world (or a similar parallel universe) as a single, perfect rose on an empty lot in Manhattan.
The Cyberiad: Fables for a Cybernetic Age (1967) by Stanislaw Lem has a robotic prince trapped in recursive virtual dreams by his Evil Chancellor. Once the prince realises what happened, he panics, and desperately tries to wake up "for real" — and at one point he does, but, thinking in his panic that he is still dreaming, keeps trying, thus falling back into endless recursive dreams forever.
In one of the Lem's The Star Diaries story, Ijon Tichy visits the scientist, professor Corcoran, who build numbers of electron brains. Those electron braines closed in the chests have consciousness and they are thinking that they are real people. Chests are wired to the device which sends electric signals to those brains senses imitating perception of real world. Those brains have no clue about their real situation. Except one, who is called by Corcoran 'his world lunatic'. Because of some world imperfections (such as Deja vu or theory of Seriality), this brain suspected that it is not real and everything is just illusion which is served to him by someone or something. At the end of conversation, professor Corcoran admits, that he is also suspecting that he is not real and surrounded by phantoms, products of false signals sended to his senses and that it is probable that even creator of this world is also a chest in someone laboratory, and so on and on...
And when Narnia is destroyed, a whole copy of it is inside a barn - plus a copy of the 'real' world. And when the characters in Narnia go to the apple garden, there's another Narnia inside it, and everything gets more beautiful and real as they go inward.
In the John Crowley novel Little, Big, the world of the Fae is smaller than the human world and exists in cracks and crevices of the latter. By the time a slow-motion End of an Age comes around, the Fae have abandoned their world, apparently for another, smaller one, and the few humans aware of the Fae have taken their places in the Fae world. The further in you go, the bigger it gets.
In the Science of Discworld novels, the wizards create a "model universe" they christen Roundworld. Roundworld is, of course, our world - which implies that eventually Roundworld will contain an author named Terry Pratchett who will write stories about a Discworld in which wizards create a Roundworld, etc.
At the end of the first Science of Discworld, Hex actually states (er, writes) definitively that recursion has in fact occurred.
Another Discworld example, this time from the main series. In Sourcery, the main characters have to travel across the Circle Sea, and do so in the djinn's lamp being carried by one of the characters, which they still have in their hands inside the lamp. This only works because one of them is carrying the lamp and is moving... because they are inside the lamp being carried. It stops working when the universe realises what's going on, so they are told not to think it through, leading to one of them doing exactly that...
Not exactly "literature", but the Australian picture book Puzzle Worlds is based on this. A gaggle of hapless airline passengers find themselves in a world inside a well in a town on a flea on a zoo animal... and various nested worlds inside that.
In a story in Bigot Hall by Steve Aylett, the protagonist and his friend go out to a small island in the grounds of his home. The first thing they find is a tiny fence, when they tread on it, and then a model of the hall, including a little lake with another, even smaller model of the hall, which has a tiny lake with tiny model...and at this point they freak out, fearing that if look up they'll see giants above them. His father finds them later (hiding under a tarpaulin), and says he knew they were out out on the island when he saw that part of the fence had been flattened.
Flatland contains Lineland inside it, which contains Pointland inside it. It is itself contained in Spaceland, which may be contained in a higher dimension. So, while there are only 2 recursions inward, there may be an infinite amount outward.
There is a story called "Fessenden's Worlds" by Edmond Hamilton, where a scientist creates a miniature galaxy to experiment upon. After he's killed (along with the galaxy), a friend of his, who saw it all, keeps thinking "is there a Fessenden out there"?
A Soviet story "Engineer Alexeev's Mistake" is about a scientist who created a tiny galaxy orbiting Earth. When some time later he decides to shut it down, it turns out that due to time passing differently there, the galaxy has already developed an advanced civilization (with a communistic government, naturally), and managed to retaliate by putting the scientist in stasis.
A rather famous Russian poem from 1922 Atom, later republished as The world of an electron, by Valery Bryusov starts with "What if those electrons // are worlds with five continents, // arts, knowledge, wars, thrones // and memory of 40 centuries?" The idea seems to have been quite widespread back then.
Roger Zelazny's The Chronicles of Amber uses this, with Amber (and, it's implied, one location in that world) being the ultimate physical manifestation of an ordered reality. All other worlds are shadows of Amber, or shadows of shadows, or so on recursively... all the way down to pure chaos, near which the worlds are so volatile you can often just walk from one to the next. Then it turns out Amber itself is a reflection of a still deeper world, containing the pattern Oberon created. Then Corwin creates another pattern, and, it's implied, another multiverse. Then it gets complicated.
Cloud Atlas is a series of nested stories, told in different stories, through different mediums (a log book, a screenplay, a spoken story, etc) which abruptly end part way through as the next story begins. Each of the main characters will at some point actually find the previous story, get to the point where it was cut off, and for one reason or another be unable to finish it either. Only the "center" story is unbroken, and as it finishes the others are picked up again and one by one finished.
Roald Dahl uses this trope a few times, most notably in The Wonderful Story of Henry Sugar.
Lawrence Miles's Doctor Who Expanded Universe novels contain frequent references to the "bottle universes". The intent appears to be that the Doctor Who New Adventures universe exists in a bottle in the Eighth Doctor Adventures universe ... and vice versa. Mind Screwy enough on its own, other authors (who believed both book series were in continuity with each other) muddled things even further, eventually establishing it was a Klein bottle, and the universe was inside itself.
I felt, on the last page, that my narration was a symbol of the man I was as I wrote it and that, in order to compose that narration, I had to be that man and, in order to be that man, I had to compose that narration, and so on to infinity.
In The Enduring Flame Trilogy, Tiercel proposes that the worlds are each nested inside the other like a puzzle box. When "lined up" properly, something can move from one world to the other.
The Dresden Files: At one point, Harry made a scale replica of Chicago, with a powerful spell on it. When he uses it, he "enters" the model, and is able to move around it. And through it, he can observe things happening in the real Chicago. One unnerving aspect of the spell is that if he looks up at the sky, he sees the interior of his own basement, and a giant size version of himself concentrating intently on the spell.
The plot of the Bernice Summerfield novel Dead Romance uses this trope for some hardcore Mind Screwery; the protagonist discovers that she is from a Universe-in-a-bottle created by the Time Lords, and the reason her (and by extension, our) universe is so mundane is that the Time Lords didn't have enough material handy to recreate all the crazy aliens that humanity in the "proper" universe seems to run into every week. A visitor from the outside universe is astounded that the Pyramids were actually built by humans instead of Ancient Astronauts, for example.
A very wide variety of examples can be found in Douglas Hofstadter's book G÷del, Escher, Bach: an Eternal Golden Braid, in which recursion and self-reference, particularly applied to mathematical proof about the nature of mathematical proof, are major themes.
"Worlds Apart" by Richard Cowper. It begins with Universe A being a story in Universe B and vice versa. And that's just the begin of the MindScrew, when the universes begin to interact...
In The Opal, a king receives a magical ring containing his own star. It shows him a planet of incredible beauty, so he spends all the time there, with a beautiful girl, to the exclusion of all else. Later, he exchanges the ring for a kiss from the girl, with her promising to use the ring in order to visit him in turn. By the end of the story, she is yet to follow up on the promise.
In the short story "Love Comes to the Middleman" by Marc Laidlaw, the protagonist lives in a house built into a wall of one of the rooms in the house of a giant woman... and all his rooms likewise include the houses of small people, one of whom mentions to him that the same is true of their own house. He later meets a woman (of his own size) who tells him that the house containing the room in which their houses are, is itself in a room of an even bigger house. The progression is implied to be infinite in both directions.
Live Action TV
The Star Trek: The Next Generation episode "Ship In A Bottle", where the Professor Moriarty created on the holodeck to outwit Data is discovered to be sentient and demands that the Enterprise crew work to transfer him into their world. Data later discovers that Moriarty appears to exist outside the holodeck because he actually exits the holodeck on an Enterprise he created within the holodeck on the "real" Enterprise. They make Moriarty think he receives what he wants by transporting him to the simulated holodeck, which runs a simulation of the Enterprise's shuttle bay that makes it seem as if he and his companion are free to explore the universe. As if that wasn't headache inducing enough, Picard wonders aloud whether the "real world" could be yet another simulation, which prompts Barclay to test his hypothesis.
In Mork and Mindy, Mork once shrank down to microscopic size and ended up in an alternate world.
The Doctor Who serial "Castrovalva" features a variation on this, where the entire town (a town called Castrovalva) had been warped in on itself. One of the cliff-hangers had a hilarious line from the Fifth Doctor.
Doctor: Recursive occlusion! Someone's manipulating Castrovalva! We're caught in a space-time trap!
The deliberately over-the-top delivery of that line was lampshaded in the "Castrovalva" commentary where Davison described it as "end of episode acting".
The entire premise of the Doctor Who episode "Amy's Choice" is a choice between two possible realities in which they keep falling asleep and "dreaming" of the other world, in which they are entirely convinced they are in the "real world" again. Turns out both scenarios are dreams, but there is a brief moment that could be an Up the Real Rabbit Hole situation.
That presumes that Buffy would have to be in every scene, but in "Normal Again" she not only goes unconscious in the first few minutes but the asylum continues to exist when she is not present. It could simply be that Buffy is the grand creator of the entire Whedonverse, which is not a stretch considering we only see one-hour glimpses into her life at any one time and there is magic in the Whedonverse than can create a lifetime of false memories. Dawn is actually the product of such magic. Anyway, due to some intense backlash, Word of God is unlikely to be trustworthy at this point.
OR maybe there are two realities - one where Buffy's crazy and the other where she's the slayer - that just crossed paths at that point in the timeline before splitting again.
America's Funniest Home Videos had a clip of their dog reacting to the show. Later, a different family sent in a clip of their dog reacting to that dog reacting to AFV. Even later, the family that sent in the first clip sent in a clip of their dog reacting to the other dog reacting to itself reacting to AFV.
Abed tries to do this via a film project in Community. It doesn't work.
Shirley: I'm reacting the way the world does to movies about making movies about making movies! I mean come on, Charlie Kaufman, some of us have work in the morning, damn!
In "History 101", Abed has trouble facing the last year of classes, so he retreats to his Happy Place, a stereotypical sitcom version of the show complete with Laugh Track. Then when things start changing there, he retreats to a second happy place, a cartoon called Greendale Babies. So to recap, Abed has a happy place within his happy place.
Bones is loosely based on a series of novels by Kathy Reichs. The titular Dr. Brennan is loosely based on a younger version of Reichs herself. Both versions are forensic anthropologists, like Reichs, but only the TV version is the successful writer of a series of novels featuring forensic anthropologist Kathy Reichs. Instead of her the novels being loosely adapted into a television series on FOX, there's eventually a movie in the works (with an even younger, sexier, more action-oriented plot). No word yet on whether Reichs' Brennans' Reichs will have written any books.
In one episode of MythQuest, Alex gets into a myth by touching a reflection of himself in a mirror in the portal. When he touches the mirror to get back to his world, he actually gets back to a version of his world that isn't quite right. He has to touch the mirror again to get to the real version of his world.
In The Beatles song "Paperback Writer", the singer tells a publisher that he wants to write paperback books, and that he has just written a book about... a man who wants to write paperback books.
The cover of the Pink Floyd album Ummagumma is a photo in which a variation on the same photo is hanging on the wall, which itself contains a variation on the photo and so on in a modified Droste Effect.
The video of Bj÷rk song Bachelorette is this in spades (especially so as it was made by Michel Gondry). After finding a book in a forest, which begins authoring the protagonist's thoughts, Bj÷rk's character gets it published, gets a theatre adaptation, and then begins acting out the story. When the play hits the adaptation part, the show then becomes a play-within-a-play, and continues looping into itself. In the end, everyone turns into plants for some reason, which ends up burying the book again.
Genesis' "One For the Vine" is about a charismatic warlord about to lead his tribe into battle. One of those who don't believe in him deserts, and flees up a distant mountain, only to slip and fall into a strange valley... where he encounters a tribe who hail him as their new warlord. To his horror, he realises that he is back in the situation from which he was trying to escape. The song ends with him leading his new tribe into battle — and seeing a deserter flee up a distant slope, only to slip and fall...
In a reversal of the He Who Shrank scenario, Calvin once grew to the size of a galaxy and finds a door that leads back to his own room.
In an early FoxTrotSunday Strip, the very strip's splash panel can be seen on a newspaper that Roger is reading.
Williams Electronics' Tales of the Arabian Nights requires the player to venture into seven of the Tales and retrieve a magic jewel from each one. One of these is "The Tale of Scheherazade", who is the narrator of the Arabian Nights...
Similar to the 'hall of mirrors' effect, anytime the camera faces the titantron, showing the camera feed, the image will appear to form a self-replicating hallway. It's more noticeable during long promo segments when the attention is diverted towards the stage area. This effect also pops up during video games.
The farming board game Agricola features several different "Room" tiles, in of which a game of Agricola is being played (a few posts down here).
One of the Activity cards in the card game Chez Geek is a "Stupid Card Game", and the art for the card is a bunch of geeks playing a game of... Chez Geek.
One campaign for The Dark Eye featured a pocket dimension containing an archipelago on whose islands certain legends were true. One suggested subplot depended on one character dying there; their soul would be transported to, and be able to have encounters in, another dimension while the rest of the group was supposed to find a way to bring them back. (This is not the norm in this game system; mostly, dead means dead.) It was mentioned that if the soul was swallowed by a certain kind of monster, it would be thrown into a realm even further removed, from which they could not be brought back.
The 1st Edition Dungeons & Dragons modules I6: Ravenloft and I10: The House on Gryphon Hill, could be played either as stand-alone adventures, as an adventure and its sequal, or as interlocked adventures in which PCs who retired for the night in one module would wake up in the other, and vice versa. This last option could be played as a recurring It Was All Just A Dream, as a recursiveDream Within a Dream, or as the result of genuine shifts between realities.
Malfeas in Exalted. When the Exalted overthrew the Primordials, they needed some way to imprison titanic beings the size of mountains and planets somewhere far away from Creation. Their solution: turn them all inside-out; imprison Malfeas, the Demon City inside the body of Cecylene, the Endless Desert; then imprison all the other Primordials, including Cecylene, inside the body of Malfeas; finally, boot them out of Creation into a separate dimension. Even this was considered too insecure for one Primordial, who ended up imprisoned inside his own wings. Understandably, they're a bit miffed.
One adventure for the appropriately-named Over the Edge suggests that the gamemaster swipe a small item off the table that the players will miss but not worry too much about. The object then shows up in the game world and proves to not quite follow the laws of physics. This can potentially escalate to the player characters arguing with the players.
The final scenes of the play Stones in His Pockets concern the main characters trying to get producers to look at a script they wrote, called "Stones in His Pockets."
[title of show] is a musical about two guys writing a musical about two guys writing a musical.
"A, D, D, D, D, F-sharp, A... will be the first notes of our show..."
The Romanian play Jonah is about a man trying to cut himself out of the stomach of a fish, only to find that said fish has been swallowed by another fish. In the end, he finally realises that the whole world is made of fishes, and he just wasted his entire life trying to escape, instead of living normally.
TV Tropes Wiki
At the amazingly fast rate we're adding tropes to this site (as well as some other stuff), this site will soon contain all the tropes that could possibly exist (and those that can't either). But if we put all the tropes that (don't) exist together, we are, in fact, describing the universe (and, indeed, all possible universes that can and cannot exist), so effectively, this site will contain all the universe within it, including this site! Which, in turn, will contain this site within it, and this site will also contain this site within it, ad infinitum. How's that for a Mind Screw?
Of course in actual fact it's a bit more of a moebius strip than universe-contained-universe: You just get through the entire site and the last page link you back to the first. It only really counts if pages start referencing the different layers of meta-reality that would be in play, otherwise Occam's Razor suggests that since we can only see one universe, there is no logic in assuming there's a second one.
During the board game battle between the two Bonapartes in Psychonauts, you can shrink down and travel on an enlarged version of the board game. This allows you to look inside the windows of the prop houses on the board where, in one house, you can find the two Bonapartes playing the board game!
In Fallout 3, this is the basis of the Church of Atom, a cult that worships the "creative" power of nuclear bombs—they believe that every atom is an entire universe and the splitting of atoms equals the birth of whole new universes and, well, just don't let them near your nukes.
Nobody ever explain fusion bombs to these people. It might spark a holy war.
At various points throughout the PokÚmon games, the player will encounter NPCs who themselves are playing PokÚmon. Presumably, these games also contain NPCs playing PokÚmon, and so on.
In the Sierra point-and-click game Torin's Passage, the worlds are all physically nested within each other, and accessible through warp gates called Phenocrysts. The worlds all have their own atmosphere and sun except The Null Void, so it's not clear if the worlds exist within the same dimension.
In Kingdom of Loathing, part of a side-quest introduced as a cross-promotion for the MC Frontalot album Zero Day involves shrinking down and fighting scabies (skin mites) on your own leg.
The Crimbo 2010 event lets you work in an office that gradually increases your Boredom. Get it too high and you might face the Tome of Tropes, get it to 100% and your character starts playing the Best Game Ever.
External Gazer, one of the "Snake Tales" included as a bonus in Metal Gear Solid 2: Substance, revolves around the use of the virtual reality system that is the in-universe explanation of the "VR Missions". It turns out that not only does it work by locating a parallel universe matching the training scenario and projecting the user's consciousness into the appropriate inhabitant of that universe, it's also possible for the "simulations" to be nested. Plus, they're nested such that the player must exit the nested simulation as though exiting that component of the game itself. It pretty much bends the fourth wall into the shape of a Klein bottle.
In SimCity 2000, one of the articles in the in-game newspaper is about schoolchildren learning about city management by playing a Sim City-like game. One of the students interviewed for the article wonders if they're actually just characters in a game like the one they played...
The Stinger of Super Mario Galaxy 2 (which is shown after defeating Bowser in the final level for the second time), actually reveals that the game's events are all part of a storybook Rosalina was reading to the Lumas. While Mario and Yoshi are both flying through space rescuing Peach and the Power Stars from Bowser.
And then Rosalina writes herself into her own story about the game where she gives Mario the final Power Star.
In Minecraft there are people who have built working computers in the game itself. It has been speculated how long it will take untill we're playing Minecraft in Minecraft.
The mod ComputerCraft includes a text-based version of Minecraft as part of the default operating system, entitled Adventure. If you 'craft computer', the program crashes because you "tore a hole in the spacetime continuum". Meaning the program on the computer in the Minecraft world, not the program running Minecraft in the first place.
In Assassin's Creed Revelations, Desmond is in the Animus living Ezio's memories, who uses the Masyaf Keys to live Altair's memories.
And Assassins Creed IV implies that the reason Desmond himself is in third-person is because someone else is reliving his memories through the Animus.
Part of the plot of Imperishable Night, the eighth game in the Touhou series. In order to avoid discovery emissaries from the Moon, lunarian refugee Eirin Yagokoro hides the Earth in a magic pot with a fake sky on the inside. She then hides the pot in her home of Eientei. Which is on Earth. Which is hidden in the magic pot.
In Make A Good Level Xnote A level designing contest hosted by the forum that did ASMBXT, with the same intention (having it being Let's Played by raocow), but which got so many entries that it actually got its own hub level, the arcade in the Hub Level has two arcade machines which are being played by other characters. One of them is Make A Good Level X, which is being played by raocow.note The other one was A Second Mario Bros X Thing, which is being played by its own main character.
In Luigi's Mansion: Dark Moon, there is one room in the second mansion (don't forget, this is a Haunted House) with a dollhouse with windows you can look through. If you do so, you see the very room that contains the dollhouse, with Luigi looking through the window. The one difference is, one of the boxes in the scene you see is shaking. When you stop looking in the dollhouse, that box in the actual room is the one you have to look in to find the ghost that is hiding.
This is mentioned in one of the "news" feeds in Cookie Clicker when the player has advanced far enough.
"The universe pretty much loops on itself," suggests researcher; "it's cookies all the way down."
Old adventure game Nippon Safes Inc has this as one of its examples of meta-humor. In Matsushita Labs Dino finds a pirated floppy disk of Nippon Safes Inc. and makes a little speech on why Digital Piracy Is Evil. In the sequel NSI is apparently still a computer game but it's stated that the event from the previous game actually happened, even if they didn't affect the plot in any meaningful way.
Cochlea And Eustachia has objects (including one of the protagonists) containing entire living rooms complete with furniture and occupants.
Darths & Droids has no film version of Star Wars in its world, with the plots of the movies used for a Tabletop Game instead. In that world, however, there is a webcomic about a world that has no Harry Potter movies, with the plots of those used for a Tabletop Game. The layering goes down and down and down, with another movie added every 50 strips.
In Homestuck, the Battlefield, Skaia, is contained in the King's scepter. Said king is fighting on the Battlefield. And there are two kings.
Every single universe is apparently a giant frog.
Snowman's heart contains the troll universe, she is currently inside the troll universe.
Not to mention that The Tumor is a bomb using the death of two universes as a catalyst. The two universes are the Troll universe and the Human universe, both of which are contained within it.
The page pic is from a The Perry Bible Fellowship strip in which an astronaut somehow lands on his own helmet; when he takes it off he can see a miniature figure of himself standing on it holding a miniature helmet with an even smaller figure of himself standing on it holding...and to make his day even worse, his bald spot is spreading.
In the Wikipedia page on "Infinite regression", one of the "See also" items is sometimes "Infinite regression".
Johnny Test has an episode similar to "He Who Shrank" - Johnny shrinks to smaller than a quark, and it turns out that each quark is an entire universe.
Futurama: In "The Farnsworth Parabox" our heroes end up owning a box that contains the universe that contains them.
In another episode, Amy plays a game of virtual virtual skeeball— a simulation of a game of virtual skeeball.
In yet another episode, Leela experiences the Dream Within A Dream type. She slowly realizes she's in a dream (or going insane) and keeps trying to escape only to end up in more bizarre situations. She meets Fry each time who tells her she needs to "wake up". Turns out she was in a coma, and she was hearing the real Fry (at her bedside) pleading with her to "wake up".
South Park uses the fourth type for one episode. In the end, it turns out that Stan has emotional problems, so he, Kyle, Cartman, and Kenny (who didn't technically die this time) go for ice cream. The end.
The short film The Killing of an Egg, by Paul Driessen. A man hears a voice coming from the soft-boiled egg he is cracking and maliciously crushes it. He then hears knocking outside his house, and finds that he is now the one being crushed.
One episode had the characters being imprisoned by Mumbo in his magic hat. Cyborg points out that Mumbo, appearing in the world inside the hat, is still wearing his hat. Which everyone is still inside. Including Mumbo. And his hat.
One Kids' WB! ad for the show has Robin and Starfire sitting on the couch in front of the TV. Starfire asks Robin what he's watching; he says he's watching Teen Titans. Zoom out to show a recursive image and Starfire asking Robin the same question. They do this enough times to put it barely short of an Overly Long Gag, then Starfire Breaks The Fourth Wall, asking the audience what they're watching.
In the episode "Nevermore", Cyborg and Beast Boy are sucked into Raven's magic mirror, which transports them into her mind. The weird part of this is, Raven herself is somehow able to go there. Meaning she's inside her own mind. She doesn't explain how that's possible, and they don't even question it. (Likely because there's a much bigger problem - Trigon - threatening them.)
An even weirder part of this was how Raven told them they'd be trapped there forever if she was beaten (the reason she pleaded with them to leave). Given that they're inside her mind, it isn't known exactly how it's possible that the place could even still exist if she were killed (assuming that's what she meant by "beaten").
The song "Yakko's Universe" from Animaniacs had the entire universe turn out to be inside Yakko Warner's snowglobe twice.
An episode of I Am Weasel revolves around Weasel, Baboon and Red Guy trying to find out where everybody in the world has gone to, leaving every public place empty. It turns out everybody is home, watching I Am Weasel. And yes, it DID in fact include a shot of Weasel in front of a TV showing him in front of a TV showing him in front of a TV showing him... To be honest though, this wasn't even one of theweirdest episodes.
In one Sponge Bob Square Pants episode, SpongeBob is made to go on forced vacation, so he consoles himself with the Official Krusty Krab Playset. Toy!SpongeBob ends up accumulating too much vacation time as well, so he's forced to go on vacation, resulting in Toy!SpongeBob playing with Toy!Toy!SpongeBob and... yeah, the real SpongeBob decided to cut it off there.
An episode of Chowder opens with Chowder eating a gumball with muffled screaming being heard as he chews it. At the end of the episode, when Chowder has gummed everyone and everything on the planet together the planet gets eaten by another Chowder and similar screaming is heard.
There are any number of magazine covers with a Droste Image — where somebody on the cover is holding a copy of the magazine with the cover that they're in, etc.
Hell, Games Magazine made a puzzle out of it.
Numerous commercials have used a similar effect, where a photograph in one scene expands and animates, becoming the ad's next scene. Usually, this also has a photo or other image in it, which also expands and animates...
RaŰlians believe that our universe is a tiny particle within the body of a living creature in a much larger universe, and that all atoms in our universe also contain smaller universes similar to the one we live in.
Have two mirrors face each other and look at what you see in them.
Or for a hi-tech version, hook up a video camera to a monitor and point the camera at the screen.
Who cares. Go here.Right-click download and Save as OR you can go over here oh! Can we watch ourselves? Will it let us do that on here OH MY GOD
The Universe has about the size and mass of a really big black hole (which need not be very dense). It is therefore conceivable that black holes contain universes. (The border of our Universe would therefore be its event horizon.)
A related fact: Objects in space tend to gather into groups due to gravity, like planets around starts, whereas stars gather into clusters, clusters into galaxies, and galaxies into superclusters. Basically the only thing that isn't a group held together by gravity of its components is the universe itself. This also works in subatomic level. To what extent, we can only guess.
Gravity does not apply on the quantum level, and the universe isn't much of a "thing" beyond a hole where everything else is.
Gravity does apply on a quantum level, but it doesn't apply significantly, and the other forces typically overwhelm any influence it has.
Philosopher Nick Bostrom has proven that if there's ever going to be a recursive simulation of reality, then we're probably in it already.
This is related to the notion of Transhumanism and the "Omega Point" theory that technology and human awareness is accelerating exponentially toward an Omega Point where we will be aware of all things in existence. Somewhere a Statistician is Crying...
There was this animated ad years ago for something or other... anyway, there's this piano melody. And we see the pianist. Pull out, he's in a bubble, pull out, gets eaten by a fish, which is in a little boy's bathtub, which is in a house, in an apartment block, in a city, on a magazine cover, being read by an Arab on a camel, which is actually on a stamp on an envelope, being delivered by... and on and on until it's all in a little girl's toy city and that damn piano melody stops.
The Internet, perhaps. If nothing else, it can, and possibly should, be seen as a world within a world.
As seen by web archive sites, the Internet also contains (incomplete) copies of the Internet, making it partially recursive.
These days, there are many, many social networking websites. To get into it, you typically have to sign up. Those who don't sign up don't see what's happening in those websites. It's thus an internet inside the internet. This is a problem for search engines, who want as much information as possible from everywhere on the internet. Apparently, this "hidden web" phenomenon is disturbing enough for Google that it's criticizing Facebook for exactly that.
Emulators and virtual machines. VirtualBox, for instance, simulates one PC within another PC; it's great for playing with different mutually incompatible PC operating systems or for completely isolating applications in one "box" with another. In fact, it's possible to run PocketNES (a Nintendo Entertainment System emulator for Game Boy Advance) inside VisualBoyAdvance (a GBA emulator for PC) inside VirtualBox.
In case you're worried about the universe exploding by paradox, here's another thing to worry about: does the set of all items that do not belong in a set include the set itself?
It does in exactly half of all possible sets.
in this video someone uses the embedded web browser in Second Life (textured to an in game laptop no less) to access a remote desktop viewer, which they use to.....log in to Second Life
So would that be Third Life?
This photo◊ is a partcularly clever example. Look closely.
There is a gif that shows a spacecraft speeding towards a Death Star-esque surface. But the surface is recursive, so it never actually gets there.
This video is what happens if someone tries to use screen-capturing software on itself.