Questions tagged [population]

For questions on population sizes, maximums and minimums, how they are affected by different events, etc.

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3answers
1k views

How could my island-country mostly populated by massive humanoids subsist its inhabitants?

In my prospective dramedy science-fantasy children's videogame Salade de Fruits (which means naturally Fruit Salad), there is an island-country comprising a total of eight islands: The smallest has ...
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1answer
90 views

What population size is reasonable for a moving, steam powered, predatory city?

For a DnD campaign, I'm designing a setting with steampunkish tech level, as well as magic used to explain tech accomplishments not possible with real world physics. Almost all settlements in this ...
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7answers
107 views

How to ensure magic-sensitive population remain low? [duplicate]

In my world, China earns its beginning to three major clans: the Huang, the Yan, and the Chi You. Huang and Yan are normal homo sapiens, but Chi You is a clan of sentient magical reptiles like dragons ...
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1answer
71 views

Naked mole-rat people [closed]

After dropping in childhood, the human death rate in adulthood rises exponentially, doubling every 8 years like clockwork until the number of survivors is so low that the statistics breaks down (...
2
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1answer
129 views

What would it take to have a 100% redhead population?

Redheaded-ness is a recessive trait. Obviously a society could just kill every baby that comes out with a different hair color, but is there any passive way for a human ethnic group to be 100% ginger?
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2answers
163 views

How Many Generations for Elves to Match All Other Races in Population?

So Elves and their long lives are well-known to be a fantasy trope but I wanted to determine how long it would take for the Elves to achieve dominance not through magic or wisdom but sheer numbers. ...
3
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6answers
396 views

Any given couple is either only capable of having sons or only capable of having daughters [closed]

Consider a world in which every human is divided into two groups: call them Group 1 and Group 2. There's a completely random 50/50 shot for everyone to end up in each one, and it's not genetic or ...
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12answers
962 views

How many votes should a solar system sized AI get in a galactic democracy? [closed]

In a setting where there is a multispecies Galactic Democracy with Proportional Representation that has expanded with the rule of giving one vote to any individual, how should they deal with a Machine ...
2
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1answer
102 views

Space station stable population

An isolated space station that has 18 lab grown babies every day. The average lifespan is 120 years. What is the total size of the population for the birth death rate ratio to be even? Im having a ...
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5answers
2k views

How could a society of giants remain hidden?

How could a society of about 10 giants remain hidden from the world in this day and age? These giants are ~50 feet high, uneducated, and eat humans. They run very fast and are very strong. How could ...
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1answer
236 views

What Point of Departure Would I Need to Turn The World's Largest Cities Into Kowloons?

In 2018 estimates by the United Nations, 81 cities around the world have been categorized as metropolitan areas with a minimum human population of five million. Tokyo stands out on top, with a ...
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3answers
233 views

How densely populated can a rural area be?

The state of Bihar, in India, has an estimated population density of 1,307 humans per square kilometer even though 89% of the population lives in rural areas. How much more people could inhabit a ...
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4answers
377 views

Can encouragement of same sex relationships be used as a form of population control?

In the setting, the available living area is relatively sparse and valuable, but the industrial revolution is booming, and the associated rapid population growth posing real overpopulation and ...
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1answer
140 views

How long would it take the internet to shut down if everyone else suddenly disappeared? [duplicate]

Let's say you are browsing the internet, and the entire population of Earth instantly vanishes from existence. How long would it take before a link that you try to open fails?
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5answers
507 views

What percentage of NPCs does a god need in order to remain benevolent?

A god (G) of an Earth-like world is benevolent. At the same time G allows free will. The problem is of course that some people will choose to harm others. This presents the god with a problem; how ...
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8answers
2k views

How long will it take for the off-World population to exceed Earth's population?

As I type these words in March 2021, there are numerous private companies developing engineering solutions for reliable, high-capacity and relatively cheap access to space. At this point in time, it ...
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19answers
4k views

How Do I Keep the Population of an Ecumenopolis Reasonable?

In the galaxy I'm worldbuilding for my science-fantasy series, by far the most important planet in the galaxy is an ecumenopolis called Ishga. What I had in mind for this planet is something ...
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2answers
244 views

Realistic Postwar Population Explosion

Okay, let's say that we have a starting population of 7.7 billion, and a brutal, month-long war wipes out 1.3 billion people. 1% of Earth is rendered uninhabitable by the war. This would put carrying ...
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4answers
159 views

How would having many small towns vs a few big cities affect a countries society and economy?

Kind of a theoretical question, but if a small country in a late medieval-ish era sought to discourage large, crowded, dirty, and poor cities by encouraging more towns of a smaller size, how much ...
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1answer
174 views

How would I calculate population growth over 300 years with little advancement after an extinction event?

HEAVY EDIT after a few hours sleep and some coffee. Retracting my own answer and adding it to the questioon as it doesn't actually solve my problem and gave me more questions. My logic last night was ...
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1answer
150 views

How many children can a society of 250-300 people produce in a year?

Basically, my world's societies (They're tiny-sized for reasons too complicated to explain in a simple post) are forced to provide about 1 human sacrifice every month (Because reasons) and to fight ...
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5answers
504 views

Could the world function as "normal" if the rich, famous, and a certain percentage of each country left the planet? [closed]

My story is about a radio intern who is left in charge of the station after a few ships carrying a chunk of the Earth's population leave while claiming that the ships will be sent back for the rest of ...
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5answers
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Is a utopia a necessarily aged society?

Following the issues raised in the question How to limit population growth in a utopia? I'd like to ask a related question. In a stable utopia, would the population be old-aged, compared to less-than-...
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6answers
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How big can a town get before everyone stops knowing everyone else?

In small towns, people often say that everyone knows everyone. While probably not literally true (for all but the smallest towns), the rate of interaction between members of the town is still high ...
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2answers
129 views

How many people would a 1500 ish colony need [closed]

How many people would a colony with around 15th century technology (i.e. Bows, crossbows melee weapons mostly, a few guns and cannons) need to survive? A few things to mention would be that charms, ...
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4answers
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Maximize living descendants of a cult leader with zero morals

A young man receives a message from "God", and has been told to procreate as fast as possible in order that his descendants can outnumber all the heathens (everyone who isn't his descendants)...
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8answers
412 views

What would determine the rate that a hereditary condition reveals itself after years of dormancy?

Long ago, an Eldritch deity was summoned to the city of Innsmouth within a ritual circle, where it was killed and consumed by the population. Devouring the flesh of the deity increased the mana supply ...
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4answers
2k views

Population Size of a Colony With a Large Gender Disparity

This is my first post on this site, so please bear with me. I am working on a series of stories about an interstellar colony with a large gender disparity. Namely the initial population was made up of ...
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3answers
645 views

How to calculate a village's population size

I have the two largest towns of this smallish Kingdom's populations, but the first place the protags of my story are going to encounter is going to be village or hamlet sized. Most of the resources I ...
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1answer
138 views

Which professions/backgrounds can make better slaves for an improved alien society in case of a selective termination? [closed]

Let's say that an advanced alien society somehow annexed or conquered earth for its natural resources. Then they discovered that these "human"s consume so much resources and they need to be ...
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0answers
81 views

How much hunting land and/or vassalized livestock herders would a dragon need to sustain itself given any possible caloric requirements? [closed]

Writing about a setting with a nation of intelligent dragons has got me thinking about the limits of greater draconic society. I found the discussion here very helpful, but I want to expand on it. ...
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1answer
137 views

What jobs would be necessary on a colony world with no access to any other civilized planet? (Too far away/no FTL travel)

I need to know what jobs/roles a completely self sufficient colony world would need to get started and continue to function. The colony would be made up of 200k-300k colonists. They would be organized ...
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3answers
189 views

How quickly can an interstellar human population grow after 200 years post-Apocalypse?

In relation to my other questions, the earth gets destroyed in 2165 and the humans that would have survived go to a new planet. Now, context is that the humans have been into interstellar travel for ...
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6answers
693 views

How large could a population of supernatural beings be and still be plausibly hidden?

I am trying to figure out how large the population of supernatural beings can be in a stereotypical urban fantasy setting before their numbers stretch the suspension of disbelief. I.e., your standard ...
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5answers
2k views

How many people within a given population could reasonably be "noble" without inbreeding becoming an issue?

I have searched around the site and seen several population-related questions, but not one that is getting at what I'm specifically wondering (or that is at least explaining it in a way that my ...
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2answers
212 views

How can an immortal emperor's descendants affect the rate of population growth?

In the ancient nation of R'lyeth, a carpenter named Yeshuah Targeryean walked into a desert to prepare for his ministry. During this time, he was visited by a tentacled monstrosity who promised him ...
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4answers
142 views

How would dozens of humanoid species affect early migrations?

In our world, humans evolved and spread to pretty much every place in the world they could reach. Would that still be the case if there were, say, a dozen different humanoid species? Would they all ...
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3answers
125 views

What would the population and financial requirements be to create a self-sustaining country based on UBI that could be apart of the global economy [closed]

If a mega rich individual wanted to test the validity of UBI (Universal Basic Income) in the most efficient way possible and how it integrates into a global modern economy, what would the population ...
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2answers
123 views

What conditions would allow for a medieval England type population to have only red or blond hair? [closed]

Only fair haired, with no occurrences of black or brown hair. I am seeking a reason that this type of genetic occurrence is plausible?
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1answer
219 views

Is it at all possible to have a populous, formerly colonial nation in the Indian Ocean?

The temperate latitudes of the Indian Ocean and adjacent regions are essentially empty- only the extreme Southwest of Australia and extreme South of Africa dip into the temperate belt. What if there ...
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1answer
323 views

What would be the an avarage and/or realistic population density be for an medieval based city?

I'm currently building a world for a medieval based D&D campaign (i know super original) and I'm trying to make my cities as realistic as i can. Right now I'm planning on making a city in the ...
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3answers
187 views

what percentage of the world’s population is religious? [closed]

I recall asking a question that applies to Hell, but I have since realized that said story idea didn’t make a lot of sense. I have been thinking and thinking and thinking, and I think I’ve finally ...
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3answers
273 views

How long could a city that is completely cut off sustain itself? [duplicate]

I have a city, and let's say this city gets cut off, Berlin '45 style. Nothing in, nothing out. Classic siege. I want to be more specific than that though: Suburbs won't be in it, it will be all the ...
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5answers
2k views

What is the maximum population density in a settled land where farming and homesteading is impossible?

Let’s say that early middle ages humans discovered and expanded into a newly discovered land. Those humans made a concentrated effort to populate this new territory; they shipped several ships of ...
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1answer
137 views

What would the job market look like if half the population suddenly disappeared? [closed]

Half of all humans on planet earth one day suddenly disappear, leaving no trace. My question is, how would this affect the job market? First I assume there would be a lot of grieving over lost loved ...
3
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2answers
354 views

Would the human population increase without ''natural sexual discouragement''?

I read a theory once which stated that the natural pain, sickness and general discomfort that humans can experience during sex, pregnancy, and childbirth help control the human population by ...
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2answers
217 views

How Large could this Optimized Preindustrial Population Get?

There are a lot of questions on this site about historical population levels and densities, and they have good answers about taking into how hard it was to survive in the past, and how inefficient ...
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4answers
206 views

Giving a Will/Inheritance to a goat in a medieval setting? [closed]

A lord of a manor is dying and plans to leave his manor and fortune to a goat, who is a demon in disguise. I'm wondering how can I make this idea feasible. Being a demon, the goat could influence the ...
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4answers
331 views

How long would it take to kill an army of 100k

The time period is similar to the crusade time instead of asia there is an entirely different island continent. The people on it are not homosapiens but some different earlier branch. they are though ...
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13answers
8k views

Why would a country with high population suffer from low manpower?

This country has very low mortality rates and basic medicine, it is also very well-connected with a strong government and homogeneous culture and people. The country is self-providing of all resources....

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