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Questions tagged [alternate-reality]

For questions in which reality is different than it is in real life. This may range from small, historical changes to absolute revisions of the laws of physics.

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3 votes
2 answers
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Evolution of classic giant mushroom forests [closed]

How would the classic fantasy trope of giant mushroom forests evolve? In an alternate, Earth-like reality, how would fungi grow into dense, lush 'forests'? Mushrooms decompose things, so to have ...
Aster's user avatar
  • 355
-4 votes
1 answer
119 views

Society with random teleportation [closed]

In a parallel-universe jumping setting (akin to Rick and Morty or Doctor Strange and the Multiverse of Madness) we enter a universe where people teleport to a nearby location at some reasonable rate (...
Stephen's user avatar
  • 15
33 votes
25 answers
8k views

How can the stars be wrong, so that an observer realises they're not in our world anymore?

There is a common trope in fiction: when a character find themselves in a dark place out of this reality (somewhere in the eldritch realms, dreamscapes, lost cities of Carcosa or R'lyeh, etc), at ...
Olegiwe's user avatar
  • 449
2 votes
2 answers
204 views

Alternate Triassic dinosauriods

In a hypothetical alternate Earth where the Triassic extinction didn't occur, I envision dinosaurs taking to the trees to avoid the massive crocodile species that were prolific at that time (sorry for ...
Joe Smith's user avatar
  • 3,192
3 votes
2 answers
290 views

Would a world twice the size of Earth be able to have similar weather patterns?

The TLDR for this is if I have a planet that is twice the diameter of Earth, (so four times the surface area), would continental distribution have more effect on the weather patterns than the sun and ...
Frithgar's user avatar
2 votes
1 answer
249 views

Advice/Feedback on building a working Ocean Current model for my fictional world

after much umm-ing and ahh-ing and head scratching, I've decided to seek some advice about my worldbuilding project for the novel I'm writing. Im looking for feedback/critique on what I've done wrong ...
user avatar
8 votes
2 answers
395 views

How should I determine the properties of keels and ether?

I was reading this PDF on the speed of sailing ships, and it occured to me that I need to determine the physics of the flying sailing ships in my world. Being flying sailing ships, there will be no ...
Monty Wild's user avatar
  • 61.9k
3 votes
7 answers
1k views

Why is "magic" possible in the Elidrian side of reality but not on Earth? [closed]

TL:DR: "Why is "magic" possible in the Elidrian side of reality but on our terrestrial side of the universe? " I'm creating a game and attempting to breathe life into a story that ...
user avatar
4 votes
2 answers
241 views

Practicality of engine-mediated magic

In another universe in which humans may exist but did not evolve, the laws of physics allow phenomena that we in this universe would call magical, where matter and energy may be moved, transformed and ...
Monty Wild's user avatar
  • 61.9k
5 votes
3 answers
278 views

Help solving the issue of how the existence of a giant uninhabited continent change the history of my world?

I'm writing a story (not sure if it's speculative fiction or low fantasy or sci-fi) that is set in a fairly realistic world except that there is a parallel dimension which humans colonized in what ...
Doguskang's user avatar
  • 529
4 votes
3 answers
165 views

Would it be possible for someone to have his prosthetics that were made from steampunk materials back in the 1930s?

Edit #1: As I was asked to define the steampunk materials, I should’ve clarify that by this term, I mean materials that consist of metallic elements in general, such as gold, might as well have bronze,...
Xialite's user avatar
  • 41
3 votes
2 answers
539 views

What kind of scanner can detect a hidden chip in someone's body?

So it's the lead-up to what might be World War III and the enemy is kidnapping and implanting mind-control chips into our people, one by one, to turn them into sleeper agents, to all attack en masse ...
Bigbio2002's user avatar
1 vote
1 answer
160 views

What would fungal technology look like? [closed]

In a setting I've created it's modern Earth just like you see around you every day except there's an area deep underground reminiscent of D&D's Underdark or Skyrim's Blackreach in that it's a ...
Demon's user avatar
  • 11
3 votes
4 answers
572 views

Any way of having a breathable atmosphere with zero gravity in free space?(and universal directionality?)

Inspiration This is heavily inspired by sunless skies in that sunless skies' world allows for the use of steam engines as space ship- equivalent (using steam jets as thrusters, while still able to ...
Harry Mu's user avatar
  • 363
15 votes
14 answers
4k views

What replaces Mr/Mrs/Ms as a title courtesy/respect in a world that cares less about gender?

I'm trying to create a mildly utopian setting. When my characters need to address someone formally and I realised that the default English "Mr" or "Ms" I was using is full of ...
glenatron's user avatar
  • 5,325
2 votes
1 answer
123 views

Social implication of lion-people living with normal humans and how to make them into free folk and not slaves while maintaing their role as defenders [closed]

Lion-people are kidnapped at birth from humans. Why? Because Lion-folk prey on humans as a form of sport and entertainment Kidnapped cubs of lion-folk are groomed in ''loving'' families in order to ...
user avatar
1 vote
2 answers
85 views

Balancing people from another world with people from the mother-world

Average adult male weakling from the mother-world: can bench (larsen press style, so no arch and no leg drive) a pathetic 300kg/661lbs without ever training. Average adult male from our world: can ...
user avatar
20 votes
7 answers
4k views

Can I warm up outer space?

My universe was created without stars, of any kind (which includes the sun!), and has continued that way for about 2000 years. To clarify, all life (intelligent life) was created by the deities around ...
celerysticks's user avatar
19 votes
9 answers
4k views

Can I get away with lowering gravity so that the usual solar masses in our universe are simply planetary masses in the setting's universe?

I want the world to have an extremely long age of discovery, such that even if they were to use a ship to travel in a straight line across their planet's ocean for hundreds of years they'd still be ...
Lemming's user avatar
  • 6,097
0 votes
1 answer
444 views

What If Bears Evolved Speech, What Would Their Voices Sound Like? [duplicate]

What if in a alternate reality, every bear on planet Earth suddenly evolve and became sapient like humans, and evolve the ability of speech, but realistically, what would their voices sound like? ...
user avatar
2 votes
3 answers
261 views

How fast can a tidally locked planet be sped up without causing noticeable discomfort?

This question is about an Earth-like planet that doesn't rotate around its own axis. Normally the sun and moon rotate around the planet, providing a day/night cycle, but this has stopped for reasons. ...
vinzzz001's user avatar
  • 1,092
1 vote
1 answer
121 views

Can an alternate physics system be devised in which the weak force is reduced or eliminated entirely?

Like, is there a modification to the Standard Model you could make, or some sort of alternate gauge theory that only unifies the strong and the electromagnetic interactions? Edit: I am not asking for ...
edzatle's user avatar
  • 41
5 votes
9 answers
2k views

Why do people want to immigrate to North Korea? [closed]

In the alternate reality, no one escapes North Korea. In fact, no one wants to. On the contrary, people around the world want to immigrate to North Korea. North Korea is a non-democratic state ruled ...
Andrey Godyaev's user avatar
0 votes
3 answers
246 views

Could 2 versions of a person from alternate universes be different ages? [closed]

Pretty much what the title says. I have 2 characters who are technically the same person, just from different universes, but for multiple reasons they have to be different ages. Can this make sense? ...
computervirus's user avatar
4 votes
2 answers
254 views

Discriminatory policies that are outwardly non-discriminatory

The setting of the story is similar to a 1970 to 1980 Earth. There is a special faction of people, and we call this faction A. A looks human, but has animal ears and tails (in the sense of if you ...
Faito Dayo's user avatar
  • 2,303
18 votes
14 answers
4k views

How should I build an additional periodic table?

Recently, I was going through the magical materials that existed in one of my fantasy settings. It was all going swimmingly, when a thought occurred to me: "You know, I should figure out how ...
Alkamede's user avatar
  • 503
7 votes
8 answers
332 views

What could reduce sunlight on an Earth-like planet?

I want to create a world where there is very little sunlight during the day -- at noon the light would be about the same as an Earth sunset. The planet would be Earth-like until something causes the ...
Lulullia's user avatar
  • 155
3 votes
3 answers
635 views

How would life develop/adapt in an Earth-like planet but with less sunlight?

Here's the setting: Advanced human civilizations of an ancient time destroyed the ozone layer of the planet. They managed to create an self-sustaining artificial layer which would function exactly as ...
Lulullia's user avatar
  • 155
3 votes
1 answer
111 views

Feasibility of an Empire with advanced ecological knowledge making Chott Melrhir a permanent lake?

What is the feasibility of a North African based Roman Empire turning Chott Melrhir into a permanent lake? The Empire has a population of around 8-10 millions, controls all of North Africa from ...
Kzusty 's user avatar
3 votes
5 answers
429 views

How to make pagan religions popular again [closed]

In my medieval fantasy world, Christianity, or at least it's parallel universe equivalent, is the most dominant religion. However, later in my world, pagan beliefs start to become popular again and ...
Crafter's user avatar
  • 2,591
5 votes
2 answers
341 views

Lava overgrown by plants

The problem: I want to have a volcanic island with an everlasting lava outflow completely overgrown by (jungle) plants. It therefore follows that plants should also grow above the lava. I know that ...
Anton Hinkel's user avatar
5 votes
7 answers
272 views

What weeniest single future change can merge contiguous states of the USA? [closed]

I am asking about the future, not past. At least every year, someone proposes merger of these abutting US states. Common examples are North + South Dakotas, Virginia + West Virginia, North + South ...
User's user avatar
  • 207
10 votes
5 answers
1k views

Could A Planet with Fiery Rain Survive?

The Idea I'm creating a planet where rain is small drops of fire, and anything in its way will be burnt. (No idea how this happens, and the technicalities don't bother me, either) Every night the wind ...
user613's user avatar
  • 626
1 vote
0 answers
157 views

Which would be the Koppen-Geiger climate distribution of this map?

The existence of closed seas makes it difficult to me, especially the East one. I have it clear that in the souteast region the climate would be influenced by monzoon, but if the world has only one ...
MapMapper's user avatar
12 votes
5 answers
772 views

What would the sky look like on an infinite plane?

The world is an infinite plane with an Earth-like surface. It has an atmosphere, but it has finite height Because of this, and how fields work, this should give us the same gravity all the way up, ...
Ichthys King's user avatar
  • 16.2k
8 votes
9 answers
933 views

What would keep demons existing within pocket realities from entering human domains?

Planet Earth exists as two sides of a coin, with one side containing humans and the other containing demons. These two realities are separated by a barrier that keeps both races from interacting with ...
Incognito's user avatar
  • 38.5k
-2 votes
1 answer
269 views

How common are men with feminine features and gynecomastia in a future where gender roles has become obsolete? [closed]

There is already a trend that gender roles are not as "serious" as they used to be and the criminalization of homophobia (here in Brazil at least) has helped many men to express femininity ...
Sabrine Crystal's user avatar
27 votes
17 answers
6k views

Everything is normally light. It is dark waves that travel and cause darkness - how?

In an alternative universe with alternative physics; light, by default, is everywhere at all times. Rays of 'dark' from a dark sun, are initially the only way to dispel the light. This provides day ...
chasly - supports Monica's user avatar
20 votes
15 answers
7k views

No one wants to reproduce because it's disgusting, how does the species avoid extinction?

One of the species in my world is very asexual. In this species, males and females are rarely if ever attracted to other individuals. It is something that developed through the past few decades and ...
Drien RPG's user avatar
  • 383
3 votes
2 answers
104 views

Focus mode side effects

Premise : The brain is expensive to maintain, 20% of your food expenses go to your brain so it doesn't rot and die of hunger, just to maintain an idle brain. Focusing on something burns way more ...
Drien RPG's user avatar
  • 383
3 votes
1 answer
157 views

Can trolls create chimeras with their renegeration ability?

TL:DR = trolls exist, troll cells are universal stem cells on steroids, specifically bred trolls are more powerfull and used to fuse different animals together with their regenerative properties. In ...
Drien RPG's user avatar
  • 383
0 votes
3 answers
150 views

A long lasting society

A while ago, the richest men and women in a country got together and came up with a type of society that could endure long enough until it became advanced enough to launch space conquering missions. ...
user3653831's user avatar
1 vote
2 answers
191 views

What kind of environment would exotic matter with negative-mass properties be in?

A Prelude: Let's say, for the sake of argument, exotic matter comes from exotic places. These exotic places are alternate dimensions/parallel universes, etc., but are accessible via wormholes. Perhaps ...
astillround7hief's user avatar
8 votes
6 answers
1k views

How can a moon be always full (no other phases)?

I'm writing a system where the moon is always full from the perspective of the Earth-type planet--it does not go through phases. Short of the moon itself being luminous, what would it take for this to ...
Marina's user avatar
  • 191
23 votes
19 answers
8k views

What teeniest lone change would have actualized transcontinental High Speed Rail in the USA?

The high speed train (HST) must be one of the high-speed trains currently or no longer in service. The HST should run at its max operating speed as much as possible and practicable, to save time. HST ...
user avatar
3 votes
2 answers
307 views

How much could/what would the average human be able to lift/carry if they were in a world where they are equivalently 1 inch tall?

So I have this semi-old story concept where people are somehow teleported via a mysterious portal(I might change it to a door) to this dimension where everything is 72 times bigger and the day/night ...
Conan Highwoods's user avatar
0 votes
4 answers
187 views

Everyday life in a country/society where intentional homicide is not a crime [closed]

In this hypothetical society, intentional Homicide (murder) is not a crime but society can develop normally and people carry out normal lives. I believe this could be possible because I read that ...
Sabrine Crystal's user avatar
4 votes
1 answer
281 views

Can we build a planet with a hyperbolic surface?

The hyperbolic plane has some fascinating story potential, but just declaring that your story takes place on a hyperbolic plane seems like a clear fantasy, with all the same kinds of problems that ...
Logan R. Kearsley's user avatar
-2 votes
2 answers
117 views

How Might We Name AI's Designed to Protect All the Earth? [closed]

PROJEKT ' VERDANT PALISADE ' The year is 2020. A meeting of the UN Security Council is held, disclosing the initial success of a joint project between several member states and handing over authority ...
INPU's user avatar
  • 1,339
7 votes
2 answers
339 views

Aliens pressure cook the Solar System, do we notice?

550 million years ago, aliens erected a spherical barrier 1/6th of a light-year (~10,000 AU) in radius around the solar system, centered on the solar barycenter. Things outside the barrier can enter, ...
BMF's user avatar
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