History Main / CityPlanet

26th Oct '17 1:12:17 AM PaulA
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* Creator/AndreNorton's ''Uncharted Stars'' has a planet completely covered by city.

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* Creator/AndreNorton's ''Uncharted Stars'' ''Literature/UnchartedStars'' has a planet completely covered by city.
13th Oct '17 9:43:30 PM tromag
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*** In the prequel ''Prelude to Foundation'', it is revealed that the planet is divided into approximately 800 [[DomedHometown domed cities]], each with their own subcultures, with some open space in-between used for transportation, communication, cooling towers, etc. Trantor consumes most of the exports from a number of neighboring systems. (''Prelude'' can be considered Asimov's attempt to [[{{Reconstruction}} reconstruct]] this trope.)

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*** In the prequel ''Prelude to Foundation'', it is revealed that the planet is divided into approximately 800 [[DomedHometown domed cities]], each with their own subcultures, with some open space in-between used for transportation, communication, cooling towers, etc. Trantor consumes most of the exports from a number of neighboring systems.The twenty nearest inhabited planets are all agrarian economies whose primary export market is Trantor. (''Prelude'' can be considered Asimov's attempt to [[{{Reconstruction}} reconstruct]] this trope.)
3rd Oct '17 1:27:13 PM DancingBagel
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* A specific example from ''TabletopGame/{{Warhammer 40000}}'' is [[EarthIsTheCenterOfTheUniverse Holy Terra]],home to billions of people its oceans drained away and its surface completely overgrown with cathedrals and administrative buildings (the Imperial Palace itself covers most of Asia, while the Astronomican is inside a hollowed-out Mount Everest). The [[EternalEngine Forge Worlds]] of the [[MachineWorship Adeptus Mechanicus]] are planet-sized industrial sectors, while Hive Worlds are only partial examples, consisting of [[MegaCity enormous arcologies]] dotting a vast {{polluted wasteland}}. Finally, Necron Tomb Worlds are covered in eons-old alien ruins, beneath which deathless metal warriors slumber in stasis... at least until interlopers wake them up.

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* A specific example from ''TabletopGame/{{Warhammer 40000}}'' is [[EarthIsTheCenterOfTheUniverse Holy Terra]],home Terra]], home to billions of people its oceans drained away and its surface completely overgrown with cathedrals and administrative buildings (the Imperial Palace itself covers most of Asia, while the Astronomican is inside a hollowed-out Mount Everest). The [[EternalEngine Forge Worlds]] of the [[MachineWorship Adeptus Mechanicus]] are planet-sized industrial sectors, while Hive Worlds are only partial examples, consisting of [[MegaCity enormous arcologies]] dotting a vast {{polluted wasteland}}. Finally, Necron Tomb Worlds are covered in eons-old alien ruins, beneath which deathless metal warriors slumber in stasis... at least until interlopers wake them up.
3rd Oct '17 1:20:17 PM DancingBagel
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* Cybetron in all versions of ''{{Franchise/Transformers}}'' is a machine planet down to its core and is essentially the "body" of Primus, the transformer god with the matrix of leadership being a piece of his soul, making Cybertron a usually dormant GeniusLoci. In some of the animated franchises, Cybertron actually awakes and [[http://upload.wikimedia.org/wikipedia/en/9/9a/Primus.jpg transforms into Primus himself.]]

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* Cybetron Cybertron in all versions of ''{{Franchise/Transformers}}'' is a machine planet down to its core and is essentially the "body" of Primus, the transformer god with the matrix of leadership being a piece of his soul, making Cybertron a usually dormant GeniusLoci. In some of the animated franchises, Cybertron actually awakes and [[http://upload.wikimedia.org/wikipedia/en/9/9a/Primus.jpg transforms into Primus himself.]]
17th Sep '17 7:41:15 PM Seven56
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* A specific example from ''TabletopGame/{{Warhammer 40000}}'' is [[EarthIsTheCenterOfTheUniverse Holy Terra]],home to 16 trillion people its oceans drained away and its surface completely overgrown with cathedrals and administrative buildings (the Imperial Palace itself covers most of Asia, while the Astronomican is inside a hollowed-out Mount Everest). The [[EternalEngine Forge Worlds]] of the [[MachineWorship Adeptus Mechanicus]] are planet-sized industrial sectors, while Hive Worlds are only partial examples, consisting of [[MegaCity enormous arcologies]] dotting a vast {{polluted wasteland}}. Finally, Necron Tomb Worlds are covered in eons-old alien ruins, beneath which deathless metal warriors slumber in stasis... at least until interlopers wake them up.

to:

* A specific example from ''TabletopGame/{{Warhammer 40000}}'' is [[EarthIsTheCenterOfTheUniverse Holy Terra]],home to 16 trillion billions of people its oceans drained away and its surface completely overgrown with cathedrals and administrative buildings (the Imperial Palace itself covers most of Asia, while the Astronomican is inside a hollowed-out Mount Everest). The [[EternalEngine Forge Worlds]] of the [[MachineWorship Adeptus Mechanicus]] are planet-sized industrial sectors, while Hive Worlds are only partial examples, consisting of [[MegaCity enormous arcologies]] dotting a vast {{polluted wasteland}}. Finally, Necron Tomb Worlds are covered in eons-old alien ruins, beneath which deathless metal warriors slumber in stasis... at least until interlopers wake them up.
5th Jul '17 5:22:08 AM MarqFJA
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Finally, in some settings, a city occupies not a planet, but an entire plane of existence, a layer of a LayeredWorld, or other planet - like... thing.

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Finally, in some settings, a city occupies not a planet, but an entire plane of existence, a layer of a LayeredWorld, or other planet - like...planet-like... thing.
5th Jul '17 5:21:22 AM MarqFJA
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Another {{subversion}} can be that the city, despite covering an entire world, is no bigger than an "ordinary" city - because [[BabyPlanet the planet is so small]]. In the past, such stories seemed more realistic than they do today; however, many serious hard - SciFi tales involve colonizing an asteroid or a city - sized space station. In recent decades, computer image manipulation technology has resulted in these occasionally showing up in video games or humorous images.

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Another {{subversion}} can be that the city, despite covering an entire world, is no bigger than an "ordinary" city - because [[BabyPlanet the planet is so small]]. In the past, such stories seemed more realistic than they do today; however, many serious hard - SciFi tales involve colonizing an asteroid or a city - sized city-sized space station. In recent decades, computer image manipulation technology has resulted in these occasionally showing up in video games or humorous images.
4th Jul '17 12:42:08 AM JackG
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Added DiffLines:

** Harrison also points out that without forests and jungles, oxygen has to be imported as well.
25th Jun '17 4:05:09 PM Theriocephalus
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** The illustrations on some of the Basic Land cards are particularly impressive, depicting Forests as expansive gardens, Islands as the city's waterways and reservoirs, mountains as the tallest spires and centers of heavy industry, Plains as the suntouched rooftops, and Swamps as the sewers.
** Although the plane didn't used to be that way; in fact, there are still remnants of the wilds on Ravnica, and are primarily the home of the Gruul Clans and some members of Selesnya.

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** The illustrations on some of the Basic Land cards are particularly impressive, depicting Forests as expansive gardens, Islands as the city's waterways and reservoirs, mountains Mountains as the tallest spires and centers of heavy industry, Plains as the suntouched rooftops, and Swamps as the sewers.
** Although the The plane didn't used use to be that way; in fact, there are still remnants of the wilds on Ravnica, most of them in Ravinca's expansive and poorly explored Undercity or in ruined and overgrown areas of the world-city, and are primarily the home of the Gruul Clans and some members of Selesnya.the Selesnya Conclave.



* ''TabletopGame/{{Warhammer 40000}}'' has Comorragh, the city of the Dark Eldar.

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* ''TabletopGame/{{Warhammer 40000}}'' ''TabletopGame/Warhammer40000'' has Comorragh, the city of the Dark Eldar.Eldar. It's roughly the size you'd expect from this trope, but it's not on an actual planet -- rather, it's a collection of ports, fortresses, lesser settlements and assorted strongholds and refuges built by the Dark Eldar within the Webway (essentially a sort of pocket dimension consisting of a galaxy-spanning maze of tunnels and passages used by the various Eldar peoples for FTL travel) all closely linked by a large number of portals and passages to the point that, for all practical purposes, they act as a single, vast city.
4th Jun '17 8:33:34 PM Jormungar
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Because SciFiWritersHaveNoSenseOfScale, City Planets tend to have implausibly low populations. An Earth-sized planet with the population density of [[BigApplesauce Manhattan]] would have 4 trillion people, while a world [[SkyscraperCity covered with miles-high buildings]] would be far denser than that. But it's rare to see a planet with more than a trillion inhabitants. However, this assumes a near-universal population density throughout the planet and no large, minimally populated areas of automated processing, as the third option mentioned above would imply.

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Because SciFiWritersHaveNoSenseOfScale, City Planets tend to have implausibly low populations. An Earth-sized populations, even if the number quoted ''seems'' high. Assuming a city literally covered the surface of a planet the size of the Earth, with no large bodies of water or other uninhabited areas, a population of 1 trillion would have a density of around 5000 people per square mile, or five times smaller than that of New York City. Considering that such sci-fi cities are often said to have multiple levels as well, either fair portions of this "global city" must be largely empty or the planet must have a population density equivalent to that of [[BigApplesauce Manhattan]] would have 4 trillion people, while a world [[SkyscraperCity covered with miles-high buildings]] would be far denser than that. But it's rare to see a planet with more than a trillion inhabitants. However, this assumes a near-universal population density throughout the planet and no large, minimally populated areas of automated processing, as the third option mentioned above would imply.
rural township.
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