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Space is 3d. Which means complications when we introduce FTL travel and in imagining the fleets and their position.
But in my story, FTL is easier beyond the reach of the sun and after the last planet, as the technology beyond FTL travel is effected by planets. So basically the easiest FTL 'jump' is the ... |
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In my story shapeshifting drugs are controlled and only widely used for therapeutic medical purposes only, a recent study showed a young patient with severe depression and poor appetite is suddenly craving for Taco after turning into a sea sponge and another similar report of a grandma suffering from ADH... |
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What digit, if removed, would hamper a human from fighting using medieval weaponry? (I'm toying with both thumbs but this may be too limiting in the work that the slaves can do or both little fingers as I believe they are important for grip.) See below for more context:
A humanoid race in a typical fanta... |
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Set in near future, the human and robot coexist together amicably and conflict is rare.
They are designed to resemble us as close as possible for our sake, so we feel at ease and less paranoid by their presence.
Even their behavior and speech pattern feels personal and genuine especially those micro faci... |
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1. They have tried Democracy
2. The civilization is very much similar to human civilizations but I want it to stay as a monarchy yet still have technology advanced enough to travel around the galaxy.
Is it even possible?
[Answer]
**If you want it that way ...**
Democracies like to pretend that democra... |
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## Some Context
I'm conceiving a universe set in the far future. Humans have already mastered FTL drives and populated several planets in various star systems.
They have engines based on singularities (i.e small Black Holes).
I'm not looking for a pseudo-sci-fi excuse to allow black holes to be harvested... |
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Working on a sci-fi project, similar to well known properties, in which real world road maps play a role, but need to justify them in world on a planet where people don't build on the surface.
I have entertained the idea of
1. septarian nodules: rock formations that resemble roads.
2. An extinct ancient ... |
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Most branches of Christianity has always associated witchcraft with the devil, or some form of demon worship. This has been used as an excuse for the persecution of innocent people who were seen as threats to society. (The Salem trials, the Knights templar, etc.).
What I want is for the Catholic Church t... |
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In my worldbuilding, we're looking at the typical dystopian setup of most of humanity being in some way dead and gone. I'm not looking for what would happen if the internet shut down in general—that seems to have been answered more than enough. But what happens to the data on the internet? If, say, peopl... |
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Suppose I have a very big area as big as Gobi desert and it is windy all years round, but it is covered in snow instead of sand since Earth is experiencing another ice age right now. I am not sure if dunes would still forms regardless of the type of particles or it must be sand and only certain sand?
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Now, my world is old. ***Very*** old. And, unfortunately, the story locked me in a paradox. Namely, the colonization of the [lush caves](https://worldbuilding.stackexchange.com/questions/199687/what-would-be-the-evolutionary-drives-of-a-lush-cave-environment) featured in another of my questions, which al... |
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A planet with an early civilization (Middle age like) is doomed to be destroyed by an unstoppable event. So an advanced civilization decides to do a planetary evacuation to save the species and their culture, which is staged as an event based on the mythological beliefs of the early civilization to cover... |
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So I'm creating a sci-fi book, and I'd like to know a way to calculate how fast would the moon need to spin to create a certain amount of gravity, and how much energy would be required to get it to spin that fast. I couldn't find any information on this on google. If you do answer, please provide the cal... |
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[](https://i.stack.imgur.com/GvIN8.png)
[](https://i.stack.imgur.com/v7d7J.jpg)
Recently got inspired by chinese wushu martial arts movies and I wanted to implement a li... |
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<https://en.m.wikipedia.org/wiki/Albertosaurus>
Going to have my male human protagonist kill an Albertosaurus with stone age weapons. However as this is in self defense I was just curious to know how one would go about doing it.
For context the two characters have been sent back in time to late Cretaceou... |
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Militia Y intends to burn massive amounts of wood in order to produce carbon monoxide to be used as an air contaminant in warfare.
**Defence**: to be asked as a follow-up question.
**Time period**: ancient (140 AD thereabout).
**Plan**: Arrive at battle site long before enemy arrives,
Settle massive ... |
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In my world, [hypnotism](https://en.wikipedia.org/wiki/Hypnosis) is both powerful and reliable. With a few tools and a lot of suggestions, it is possible for trained hypnotists to put people in a trance-like state. While in this state, the victim will do almost anything the hypnotist's ask. Experiencing ... |
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Set in the medieval period the one where King Arthur was supposed to obtain a certain quest reward from lady of the lake.
Magic strength in this universe depends on species and most importantly the affinity that ones had been born with, humans seemingly spanned both ends of the spectrum. An enchanted wea... |
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From [Giant in the Playground Forum](https://forums.giantitp.com/showthread.php?310029-Temperature-of-Dragon-s-breath-weapon-%28fire%29-or-I-guess-cold-too):
>
> Well a Great Wyrm Red breathes hot enough to theoretically ~~liquify~~[melt] 4
> inches of solid iron across an 80 foot or so line. So an 80 f... |
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My aliens want to build the heaviest chemical rocket possible: They never were much into space travel, since their planets' gravity is about 1.5 of ours. They made lots of bad experiences fighting against gravity and 'decided' to keep their technology on the ground. Suddenly the world's biggest corporati... |
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This was an idea loosely inspired by a Sci-fi movie that I will not name here. But the relevant part is that it involves an interstellar colony ship landing on a planet and the crew learning that the ship had been *submerged in an ocean.*
Now there is something that kind of bugged me at the time of seein... |
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It's war on other planets! A century old feud devolved into full scale interstellar war as the Federal Fleet goes on the offensive for the first time in its history.
In an attempt to end the war swiftly, Federal Strategic Fleet Command devised a daring plan, a plan that hinges on the success of military ... |
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## Backdrop
This is set in a world after an empire-state that controlled the entire solar system fell. They have incredibly efficient catalyzed direct fusion drives, which powers [the heavy mining and shipping industry across the entire solar system](https://worldbuilding.stackexchange.com/questions/2410... |
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So. I've come up with a live-action video game, essentially like Ready Player One or The Matrix. You put on a helmet, which then intercepts your brain signals and causes you to enter a virtual reality.
The game itself is an escape-based game, where you have 1 hour to get into the next level. Of course, g... |
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An evil emperor wants to conquer the Galaxy. Before sending humans he wants to send out an advance force that will subdue other life-forms.
The Emperor's Adviser comes up with the idea that the Empire should send out DNA-based life-forms that are as hardy as possible. These are to be cockroaches.
They a... |
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First things first: english is my second language, so I apologize in advance for every mistake.
In a game of mine (D&D 5e) I've created a world, Eos, with a sentient race for each god.
There are N gods, and I've managed to link each classical race to each power.
Just for reference, the other races are: h... |
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This question is inspired by the [Would high fertility rate among the rich crowd out commoners?](https://worldbuilding.stackexchange.com/questions/86008/would-high-fertility-rate-among-the-rich-crowd-out-commoners) . The tax rate presented doesn't seem to encourage the desired behavior.
The starting assu... |
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After seeing that recent pistol (<https://en.wikipedia.org/wiki/FN_Five-seven>) has bullet diameter quite similar to one used in modern assault rifle, I started to wonder whether it is possible (and reasonable), to design:
* pistol and assault rifle of the same bullet diameter, but different ammo length
... |
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In my story, the protagonist gets sucked almost a millennia into the past (unintentionally) and lands in medieval Europe. How does he take advantage of the situation and rise to power without getting branded a heretic/demon/devil by the Church and burned at the stake and either executed in some way or im... |
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In my fantasy world I am going for a Mesozoic-inspired biome, so I want there to be no grasses. This means no wheat, rice, corn, and the like. I imagine that the staple crops will be tubers, legumes, cabbages, roots, onions, and mushrooms.
This made me think: Most of the long-term storable vegetarian foo... |
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The world is broken up into seven realms: Australia, North America, South America, Antartica, Asia, Europe, and Africa. Each realm is populated by large numbers of people, and travel between realms is commonplace. This form of travel occurs through a series of realm gates, one of which is located within ... |
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For the Universe I am creating humanity has devolved into groups of scattered tribes. This is due to the fact that we ran afoul of a *really* nasty alien race, who decided to leave us homeless. A coalition of races had banded together to fight this menace, but mankind ended up with the short end of the s... |
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Question inspired by Batman: Arkham games - although this trope is definitely not limited to this series, it is very widely (ab)used in various media.
In Batman: Arkham, various mob leaders are excessively cruel, even towards their own henchmen. They will torture and kill their own guys whenever they fai... |
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In my world, because of how difficult the dark lord antagonist is to kill, he was permanently trapped in a weird substance. However, centuries later, he gets out and he is free. He awakens now in my world's equivalent to the 19th century, and he is from the 17th century. People are shocked that he is bac... |
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Cheaters are considered to be inferior humans with defective genes and just like mentally ill people and individuals born with various handicaps are eliminated from the gene pool.
Capital punishment is used to erase adultery and purify society from individuals born with the cheating gene.
This is eugen... |
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In my world Mars is fighting Earth. the problem is what would they (Mars and Earth) use for orbital bombardment. Things to know:
* set in the early 2100s
* both worlds are inhabited by humans
* both have advanced technology
* Earth has about 11 billion people and Mars has 10-15 million
I have came up wit... |
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In the past I've entertained the notion of space stations and spaceships having window panes or transparent viewing surfaces made from laboratory-created diamonds, but a recent answer to a different question on this site has led me to question how effective (or *not*) this would be even if it were possib... |
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In my fantasy world, revenants are a special type of undead. They only occur when a person dies feeling that they were wronged in life. If their soul contains enough hatred for those who wronged them, they will come screaming back into the mortal realm, and force their dessicated corpse to move through s... |
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Using resources already available at the time, could medieval age armies form their equivalent of a mechanized infantry and perhaps implement a sort of "blitzkrieg" strategy during battles? If so, how effective would they be?
[Answer]
**Not really.**
Blitzkreig has lots of pretty pictures of fast-movi... |
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I want to create a post-religion society, but the problem is that the rest of the world still have religion. How could I assure that my society remains religion-free while allowing tourists and trading? Possibly even immigration?
I'm thinking about making religion illegal or at least something that is se... |
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Imagine an alien race that's advanced enough to wipe out humanity. They are here and they want Earth. They know we are not gonna let it go easy 'cause they've studied us for decades.
Their motivation isn't relevant, but they **need** our planet for some reason. Their objective is to exterminate humanity ... |
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A common trope in cyber punkish sci-fi is the ability to upload a human mind to some storage device or AI. This of course grants practical immortality but it is also the main hurdle for tropes like teleportation, cloning etc.
So my question is: how close are we to being able to make restorable backups of... |
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So, I have a character who has the ability to alter the velocity of any liquid water less than three inches away from her body, accelerating it in any direction she likes. With concentration and practice, she can make different parts of her body push the water around them in different directions from eac... |
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The background is simple. An emperor wants to create a more splendid colosseum than the one they have but tasks the engineers making it with the following:
* **The court or field is about a 100 by 65 meters.**
* **The underground should be extensive to support the needs of the sports.** Ahm. Like staging... |
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My species are INCREDIBLY individualistic, self-centered, and independent. Evolution has promoted and favored individuals whom can, and prefer, to stand on their own, utterly unaided.
My dilemma is, would they ever even invent a government?
They do group and work together periodically based on necessity... |
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Earth is overpopulated and needs somewhere to create a settlement. If they decided to settle on Saturn's asteroid ring and If the people who are making the settlement have the technology we currently have now and had a trillion dollar budget to build a settlement, could it actually work properly and will... |
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To make it easier, assume both planets have same mass, radius, and atmosphere as Earth, they orbit each other at a very close distance of 30,000km and they are tidally-locked, in that case the other planet will look very big.
They are orbiting a Sun-like star, in the habitable zone.
So if I was in one of... |
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The testicle or testis is the male reproductive gland in all animals, including you humans. It is homologous to the female ovary. The functions of the testes are to produce both sperm and androgens, primarily testosterone. Approximately 300 million sperm cells are produced daily, with millions made every... |
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Scientific research in 3097 proves that emotions are a flaw to the creature genetic code. Creatures capable of emotion are to be terminated immediately. Creatures will have their brains upgraded to software based robotic agents.
Question: **What evidence can be used to prove to robots the emotions are vi... |
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What would happen to a human if every cell in their body lost the ability to undergo mitosis, and how quickly would they die?
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## death in 24-72 hours
real toxins that do this exist, look up miotic inhibitors or for a more direct example Colchicine poisoning.
symptoms of Colchicine overdose, p... |
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What are real advantages of using big hammers(**BIG**) that these soldiers have been trained with for years (some since children)? There is a heavy cultural aspect to it, but right now I need only focus on practicalities.
Blunt weapons, especially large heavy hammers, can deal a lot of damage to armor an... |
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Background: In the world I'm building, "magic" is a technology that uses different wiring patterns to manipulate electromagnetic, and a some levels quantum, properties. People have these patterns placed on their bodies in what is essentially a metal tattoo in order to gain these powers, but for illegal/b... |
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I'm writing a story and I was thinking about the ending in advance. I posted a question about how the population would be wiped out. I have developed from that and thought about the virus having no cure, meaning that the world would have to be abandoned. Could the characters use a pre assembled rocket to... |
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One of the syntactical interpretation of the famous linguistics sentence "Time flies like an arrow." is to consider "time flies" as a noun phrase. This makes "time flies" analogous to "fruit flies". For details about this, see <https://en.wikipedia.org/wiki/Time_flies_like_an_arrow;_fruit_flies_like_a_ba... |
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**This question already has answers here**:
[Lifeform - resistant to gunfire but vulnerable to melee](/questions/13024/lifeform-resistant-to-gunfire-but-vulnerable-to-melee)
(25 answers)
Closed 5 years ago.
In my story, I want a creature to be immune to bullets, but giving it bulletproof skin seem... |
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In a magic, high medieval, setting what factors could contribute to governments avoiding maritime affairs with the exception of perhaps simple coast guards to prevent smuggling, **given they are coastal nations**.
Which is to say that long haul transport of people and cargo is done primarily by private ... |
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So.. I've decided to kill all the humans on Earth. Just a routine fumigation prior to a terraforming job.
Although I don't mind a bit of collateral damage I do want to keep most of the plant life and the ecosystem that's necessary to support that.
I plan to get this done over 200 to 1000 years. My prefer... |
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In my world a Magic High Nation is fighting against high tech level Nation about the same level as one of the nations in our world. I'm trying to decide what sort of magical creatures can replace a modern air force and make the magic side able to stand up to Modern military weapons.
Note: The conflict wi... |
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## Context
When hit by sun rays, the moon creates excess energy, it increases the energy & reflects it back to earth as mana rays to make magic possible (the exact process is not important). Most of it quickly vanishes into the atmosphere if not used or stored. I imagine mana to work similar to light, bu... |
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Is it possible without magic? Just like our world's rivers, but instead it's a river made out of milk.
[Answer]
No.
Milk is an immensely complex mixture of fats, proteins, and carbohydrates, to provide a complete diet for an infant. These compounds are created in nature solely by living creatures. Eve... |
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**This question already has answers here**:
[How would humanity enter a Dark Age?](/questions/9307/how-would-humanity-enter-a-dark-age)
(29 answers)
Closed 5 years ago.
I am writing a post apocalyptic story in which a large amount of the foliage is dead and agriculture has become much more difficu... |
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Utopias and utopian ideals are abundant in fiction, but they're often either fuzzily-explained or not *actually* functioning utopias.
As a premise, I was wondering if some mode of compelling people to share their experiences and perceptions would be a necessary prerequisite for any utopia to work.
It d... |
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Imagine a spaceship entering Earth's atmosphere, it has lost control of its engines and is relying on its reverse thrusters to decelerate before crashing into the Pacific ocean.
So in an attempt to save everyone on board from an impending doom, the pilot turned off all the reverse thrusters located on t... |
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Inspired by comments to [JBH's answer](https://worldbuilding.stackexchange.com/a/118210/756) to [The worlds between, the consequences of instantaneous FTL](https://worldbuilding.stackexchange.com/q/118208/756).
### The Premise
A technology for instantaneous travel exists, making it possible to travel to ... |
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I know so called ''invisible ink'' exists in the real world.
The most common types can be revealed either by applying heat to the paper it is written on (lightbulb, clothes iron, candle, lighter, etc.) or by holding a UV light over the paper.
I wanted to know if one could make a so-called ''invisible ink... |
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## CAVEAT: NO TERRORIST SOLUTIONS
(Obvious answer to any new tech that destroys stuff is "use it for extortion." That cheap trick won't get rewarded here)
I have a device similar to what Douglas E. Richards' used in *Split Second* such that any object of less than 3 m3 size can be sent back **up to** 0.5... |
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I'd like to have a forest with trees that are "normal" except that as they grow a big, hollow bulge forms in their trunks about halfway up, giving them a shape something like [this](https://i.stack.imgur.com/Q06uV.jpg), with a relatively straight trunk above and below the bulge. The bulge would be almost... |
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**This question asks for hard science.** All answers to this question should be backed up by equations, empirical evidence, scientific papers, other citations, etc. Answers that do not satisfy this requirement might be removed. See [the tag description](/tags/hard-science/info) for more information.
Back... |
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I have dinosaurs, I have an asteroid I want to save the dinosaurs from the asteroid, but I'm not allowed to use the giant laser again, after that incident in Alderaan. So I have only one chance left...
## The [Giant Housemaid mech](https://youtu.be/EWQAvMUUJr4?t=33).
I want to make things sure, so **I ne... |
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In this world everyone has superhuman abilities and multiple abilities are a thing although it's rare to see more than 2. Some abilities are also more common than others like creating fire or ice is more common than summoning spirits. Knowing that, our main character has a rather unique ability. He can m... |
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Igbi Island, a remote island located in the middle of the South Pacific Ocean, is notorious for its extremely powerful [megatsunamis](http://en.wikipedia.org/wiki/Megatsunami), huge, deadly waves averaging 500 feet (≈ 150m), but sometimes reaching astonishing of 2000 feet (≈ 600m) that occur every week. ... |
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Why would cities become layered without overpopulation? When I say layered I mean having a second or third ground built *above* ground level. With its own metros & roads. Most of the buildings below aren't connected to the buildings above. Zoning on the above level would be separate from the levels below... |
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**This question already has answers here**:
[How would you bring wealth back to the past?](/questions/113986/how-would-you-bring-wealth-back-to-the-past)
(22 answers)
Closed 3 years ago.
Congratulations! The year is 2030 and after a few months of waiting on a list you've been chosen to become one ... |
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*(For ease of reference, ECT aircraft are the drones, SEDA aircraft are the manned jets)*
I have the same problem as [How to keep humans pilots instead of AI in a sci-fi future?](https://worldbuilding.stackexchange.com/questions/17043/how-to-keep-humans-pilots-instead-of-ai-in-sci-fi-future), except I ha... |
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**This question asks for hard science.** All answers to this question should be backed up by equations, empirical evidence, scientific papers, other citations, etc. Answers that do not satisfy this requirement might be removed. See [the tag description](/tags/hard-science/info) for more information.
I am... |
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An airborne disease with an incubation time of 18 years goes unnoticed, but spreads across the world. 18 years later, its "timer" goes off, killing all adults. Good idea (thanks, @Morfium !), but I have some concerns.
Would it not spread to infect those under 18, thus killing them after another 18 years ... |
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The year is 2267 A.D. Humanity has colonized Prima Centuari system. A federal government is established; the population is expected to grow at an exponential rate to reach 1 billion by 2300 A.D.
A self-destruct button is self explanatory: you punched the button to start the countdown sequence. When the n... |
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**Closed**. This question is [opinion-based](/help/closed-questions). It is not currently accepting answers.
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Closed 7 years ago.
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