Questions tagged [humans]

For questions about humans as we know them or slightly changed, their physiology, psychology, politics, society and goals.

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8 votes
8 answers
2k views

How to get the Lilim to breed true?

On my worlds of Earth, Ruquelis and Ersutiabu, there are three sexes relevant to this question, Men (XY male), Women (XX female) and Lilim (LX female), where X, Y and L are sex chromosomes. Lilim ...
0 votes
1 answer
209 views

A genetic disease that makes genetically and biologically male humans unable to grow facial hair (the opposite of hirsutism)

In a live-action musical film I want to direct, Le Président et Moi (which means "The President and I") (I want the film to have French as its original language), there is a character named ...
10 votes
3 answers
2k views

When does gravity become too much for humanoids?

Supposing you took Earth or a planet like it and doubled its mass, the gravity would obviously increase in whatever proportion to that. As a result, humans as we know them would be ... thicker, (I ...
4 votes
4 answers
846 views

Why would some species from the Homo genus be much more likely to be autistic than Homo sapiens?

In my world, there are three species from the Homo genus that make together a clade called "aquatic humans": merfolk (Homo maritimus) (their scientific name means "marine human"), ...
3 votes
4 answers
259 views

Reasonably tougher humans against falls, concussions etc

My question is, how do we make humans more able to resist falls(not just free falls, also normal ones and from a "medium" height, 2-10 meters) and be able to move afterwards, at least for the jumps on ...
11 votes
7 answers
3k views

Why would a society be matriarchal but patrilinear?

In my universe, there is a species from the Homo genus named Homo haematophagus (which means hematophagous human) (they are still humans, just not Homo sapiens) (their scientific name is a reference ...
11 votes
8 answers
5k views

How to prevent humans from being killed by alien diseases?

Humans build big rockets and fly generation ships to extrasolar planets to settle. There’s already sentient alien life on that planet, but the humans has none of the immunizations and natural ...
1 vote
1 answer
122 views

Can knowingly and willingly murdering someone interfere with a women's menstural cycle? [closed]

On Peacemaker, Harcourt, one of the characters, mentions that when she first killed someone, her periods stopped happening for quite a bit. My question is this: Just how realistic is that? ...
1 vote
3 answers
188 views

How much would a 3 foot tall person weigh [closed]

I'm trying to worldbuild and one of my creatures is a 3 foot tall humanoid and I have no idea what they should weigh. Does anyone know how much they would weigh or a math equation I could use to ...
15 votes
20 answers
5k views

How can a mute cast spells that require incantation during medieval times? [closed]

In order for magic to manifest in this world, one has to recite a specific incantation following a visualization of the anticipated result, and only then will the magic occur. Amazingly, many students ...
3 votes
1 answer
90 views

Physiological consequences of being a brain in a jar plugged into a robot body [duplicate]

In an alterante universe where Nazi Germany conquered the world, an unfortunate soul has ended up like Cliff Steele from Doom Patrol; his brain has been removed from its original body by a mad nazi ...
2 votes
2 answers
114 views

What would modern color wheels look like if the human eye saw fewer/different spectral colors?

The typical human eye can see wavelengths between 350nm and 750nm. In 1666, Isaac Newton used a triangular prism to split a beam of white into a rainbow and then define the first color wheel. Fast-...
2 votes
3 answers
123 views

Is it possible for a metal like the Skarilium of my works to exist naturally while also being obtainable for humans in the near future?

In some of the universes featured in my works, a material known as Skarilium exists. This material is used by humanity, in a universe where we’ve successfully colonized the majority of Mars and are in ...
2 votes
3 answers
390 views

Would it be plausible to have someone who grew cancers to replace all his organs to achieve a pseudo-immortality?

Since cancers are immortal, as long as they are ‘fed’, could a bunch of controlled cancers be used to create all the organs and bones needed to support a human and prevent death by old-age? That way, ...
-1 votes
1 answer
133 views

A genetic disease that is characterised by both gigantism and intellectual disability [closed]

In an Of Mice and Men parody I want to write, Of Rats and Women, there is a 30 years old woman named Léonie Petit (her surname is ironic, because petit is a French adjective that means small/little/...
1 vote
2 answers
123 views

What would the recovery period for a five year coma look like? [closed]

So, I've been kicking around a sort-of "return from another world" idea for a bit now. Basically, the MC gets the crap kicked out of him and ends up in a deep coma with very little brain ...
-2 votes
3 answers
197 views

Superbabies can walk right from birth. How many times are they stronger than a normal baby?

XXIII century genetic engineering creates superbabies that can walk straight out of the LDR (labor, delivery, and recovery) room right after being born. These superbabies are enhanced by a set integer ...
6 votes
8 answers
1k views

Are there plausible ways a spacefaring society could develop along feudal lines? [closed]

There are works in science fiction (the Dune saga probably being the most famous of them) where in the future, a space-faring human society has somehow, instead of being a republic (at least in name, ...
35 votes
6 answers
6k views

What are the effects of making a woman as light as a duck? [closed]

With a pinch of handwavium, Clarabelle the witch causes an accident. She became permanently as heavy as an ordinary duck, while her body remained the same. Her density was forever altered. She is five ...
1 vote
3 answers
123 views

Why would all drugs be legalised? [closed]

In my world, there is a species from the Homo genus named Homo magicus. They are my wizards (or sorcerers, if you want). Traditionally, magical humans/wizards/sorcerers are an EXTREMELY religious race:...
3 votes
2 answers
186 views

Physical consequences of being a brain in a jar plugged into a robot body [closed]

Some unfortunate soul has ended up like Cliff Steele from Doom Patrol; his brain has been removed from its original body, suspended in a vat of life-sustaining liquid, and wired up to a new, robotic ...
4 votes
10 answers
2k views

How to limit economic growth?

Assumptions Let's assume there is a one world government with a universal currency. It has a Central Bank, large gold reserves, and the currency is fiat-based. The global economy is currently booming,...
0 votes
1 answer
181 views

Can anatomically modern human siblings have three decades of age gap? [closed]

In my story titled La Maison Sapiens, there is a HUGE nuclear family composed of the father, the mother, and their seventeen biological children. To be exact, the dyadic cisgender man and the dyadic ...
-3 votes
2 answers
140 views

Will this "miraculous" change have a long-term effect on technology? [closed]

In a fictional world, the following changes suddenly happen to all humans (and future newborns) for no apparent reason: Their temper becomes better. They now enjoy socializing with each other more ...
9 votes
5 answers
3k views

What is the best ways of cleaning/bathing inside an astronaut suit?

Context: In this sci-fi scenario/story, they don't use an space walk Astronaut suit (because of costs), but a crappier version of an astronaut suit, cheaper and mass produced. Due to the ...
15 votes
12 answers
3k views

How could interspecies wrestling fights be fair?

In real life, there are weight classes in combat sports. In my world, there are sixteen species from the Homo genus: Anatomically modern humans (Homo sapiens); Marine humans/Merfolk (Homo maritimus); ...
-1 votes
1 answer
125 views

How Dangerous is Unity? [closed]

No, I do not mean unity between other people. In one of the stories I came up with, people become "zombies" once an alien substance (Choromis) distributed unknowingly amongst the population ...
10 votes
9 answers
2k views

Is it reasonable that a nation reject reincarnation?

On my world, a magical device known as a Reincarnation Anchor (RA) was invented. The effect of a RA is that any human who spends a significant portion of their life within sight range of a RA becomes ...
-4 votes
1 answer
121 views

A genetic disease that makes humans of any origin have epicanthic folds (slanted eyes) [closed]

I imagined for a future film, a 21 years old human of French nationality and citizenship named Thérèse Arielle Huguette Flavie Alexandre (Alexandre can be both a given name and a surname, in this case,...
0 votes
2 answers
176 views

A synthetical virus created by a racist [closed]

In my science-fiction story, there is a vile scientist that creates a synthetical virus, because he wants to kill all humans of British and Irish ancestry all over the world. This virus ONLY affects ...
6 votes
9 answers
880 views

Barren Rock: Habitable?

I was roleplaying with my siblings, and one of them had selected the Shaman Class I devised. A Shaman's power over the elements comes from their connection to said elements, so their place of origin ...
7 votes
8 answers
275 views

Why would a settlement set up shop INSIDE a supermassive creature's mouth?

In a story idea I have, there is a massive, stationary beast, with teeth the size of houses, a body as large as a continent, and an unfathomably large mouth (don't ask how it sustains itself, nobody ...
1 vote
1 answer
151 views

A genetic disease that makes humans have much more brown fat than the average human being

I wonder if the disease I invented is realistic or a total fiction. In my story The Transcendence of Adolescence, there is a 17 years old homosexual (or lesbian if you want) transgender woman named ...
7 votes
16 answers
3k views

Why And How Do My Mind Readers Keep Their Ability Secret

My first question so bear with me, also please tell me what I can do better (both about my question and about my way of asking it). In my parallel universe everything is a carbon copy of our universe, ...
3 votes
4 answers
291 views

They don't want a united mankind

My project is set in an alternative Earth: let’s call it Earth-2. The Earth-2 history takes a different path in 2017. Here, a Big Historic Event happens. After that, for the first time, the human race ...
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 ...
9 votes
5 answers
535 views

Rapid healing and its impact on gender transition

Imagine a character with a healing ability similar to Wolverine or Deadpool (as in able to recover from most injuries in minutes). The ability is always "on," and works like a sped-up version of the ...
6 votes
3 answers
346 views

Future therapy/treatment for veterans of near future/ further future mass casualty conflicts

The setting I am working on is near future in a sense and involves veterans dealing with the aftereffects and trauma of war. However, in this setting war is extremely deadly even if not always fatal. ...
3 votes
1 answer
111 views

Why would a catarrhine species from the Homo genus be MUCH more likely to be colour blind than Homo sapiens?

In my story, there is a species of catarrhinian primate named demons (their scientific name is Homo demonus) (so there are still humans, just not Homo sapiens). They look like a mixture of Afro-...
-2 votes
2 answers
252 views

How would you make humanity extinct? [closed]

I'm trying to explore the consequences of just removing humans from the ecosystem. How could I kill off all of humanity without affecting plants, other animals, etc?
22 votes
16 answers
5k views

How can I force humanity to retreat to the ocean floor

I'm looking for an mass-extinction level event that would cause most life on the surface of Earth to be forced back to the oceans, one that is not feasibly reversible for humanity, before societal ...
4 votes
8 answers
1k views

In what evolutionary scenario can a hominid species evolve to have males and females of equal size and strength?

Is there any possible way that a hominid species could evolve into a human-like race that features males and females of the same strength and build? I still would prefer there to be an aesthetic ...
3 votes
6 answers
262 views

Why travel to another system and populate two planets with genetically modified humans? [closed]

I'm trying to create the backstory for a world which has 2 planets populated with genetically modified humans, and 'normal' humans who live on space stations/domed habitats built on moons. I also need ...
30 votes
15 answers
8k views

Best Way to Style Ridiculously Long Hair (for magic purposes)

Okay, so for the story I am working on, I have a problem-or, rather, Serena the Shaman/Witch has a distinct problem. She has only one low-mana spell-Hydro Jet-and it deals low but consistent damage. ...
7 votes
13 answers
1k views

What would still discourage my people from settling on this subcontinent?

Context: The inhabitants of my world, humans, live on a supercontinent divided into three subcontinents separated by seas. The supercontinent is located above the equator in what is roughly the size ...
2 votes
2 answers
186 views

Would a grizzly bear be big/strong enough to ride?

I'm asking solely for the purpose of one possible scene in my story/WIP. Non-spoilery context: my characters become real-world animals, one of them becomes a grizzly bear. In a scene, I have him ...
0 votes
1 answer
72 views

What are some things that could destory humanity? [closed]

I trying to think of ideas for the destruction of humanity/civilization that are not the usual (nuclear war, extreme viral/deadly disease, global warming, overpopulation, etc). Something that would be ...
4 votes
2 answers
492 views

A genetic disease that makes humans unable to produce adrenaline

I wonder if the disease I invented is realistic or a total fiction. In a white drama/lighthearted tragedy (the opposite of black comedy/dark humour) web-series for a teen audience in mind I want to ...
0 votes
5 answers
862 views

Why would women with a huge belly be considered attractive?

In many modern cultures, the hourglass-shaped woman is help up as the epitome of attractiveness. In my story, there are sixteen species of the Homo genus (humans) that can all interbreed: anatomically ...
6 votes
2 answers
347 views

What would my phylogenetic tree composed of sixteen Homo species look like?

In my world, there are sixteen human species (mammalian species from the Homo genus): Anatomically modern humans (no explanation is necessary); Marine humans/Merfolk (they have a seal-like blubber, ...

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