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Q&A

Posts tagged population

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Q&A Why might a vampiric race have low birthrates?

This pure-blood vampiric race is not immortal, but their lifespans are about five times that of mortals. This race has lived in a vast city beneath a small mountain range for thousands of years (th...

6 answers  ·  posted 3y ago by P. M. B.‭  ·  last activity 3y ago by P. M. B.‭

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Q&A 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 discou...

2 answers  ·  posted 3y ago by JordanTheCynic‭  ·  last activity 3y ago by JordanTheCynic‭

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Q&A How many people can live on planet Earth?

How many people can live comfortably on planet Earth, assuming that humanity reaches Kardashev scale Type I level? This implies: Energy is cheap, and available in an almost unlimited quantity, c...

5 answers  ·  posted 3y ago by pintergabor‭  ·  last activity 3y ago by pintergabor‭

Question population earth
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Q&A How would an AI divide its physical sphere of inflence into a "grid" of sectors?

So, my colony mothership crawls along through sub-space at a "slow" ftl as it sends out faster probes ahead of it. Once it has located a cluster (meaning an acceptably dense grouping, not necessari...

2 answers  ·  posted 3y ago by HA Harvey‭  ·  last activity 3y ago by HA Harvey‭

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Q&A How quickly do prehistoric populations grow?

I am working on a species that ressembles humans beings and that, although slightly engineered in the sense that the evolutionary leaps are aided by genetic modification, they are left to go throug...

2 answers  ·  posted 3y ago by Nierninwa‭  ·  last activity 3y ago by Nierninwa‭

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Q&A Help with population figures for colonization game

I am working on a space game that allows players to participate in the human colonization of a distant star cluster. I could use some help determining what sort of numbers I should have aboard the...

1 answer  ·  posted 3y ago by HA Harvey‭  ·  last activity 3y ago by HA Harvey‭

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Q&A Nomad tribe population

There lives in a desert a large nomad culture, composed of many tribes who wander about herding camels, goats and sheep, trading and offering services to cities and towns, and occasionally raiding ...

2 answers  ·  posted 3y ago by Jedboo‭  ·  last activity 3y ago by Jedboo‭

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Q&A How many people are necessary to maintain modern civilisation?

Modern Earth; a series of connected events (natural disasters, mass migration, drug-resistant pandemic, collapse in biodiversity, armed conflict) have led to a significant reduction in human popula...

14 answers  ·  posted 3y ago by user65791‭  ·  last activity 3y ago by user65791‭

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Q&A How large would a mega structure have to be to host 1 billion people indefinitely?

Ruins of buildings, abandoned cities and suburbs dot the coasts of Earth's landmasses, inhabited by wild animals and the pieces of a once vibrant civilization. The oceans are relatively empty, the ...

7 answers  ·  posted 3y ago by Alex‭  ·  last activity 3y ago by Alex‭

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Q&A Elf-like race: What could prevent overpopulation?

For an elf-like race whose people do not age beyond physical maturity (the accumulated DNA damage associated with aging does not occur), what would prevent overpopulation? This elf-like race is f...

25 answers  ·  posted 4y ago by JustSnilloc‭  ·  last activity 3y ago by JustSnilloc‭

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Q&A What farming practices would allow the Earth to support a population as high as 200 billion

Welcome to the year 2170, the predictions of our grandparents were so wrong: The human population didn't cap at 20 billion, it went far past that. The global population is now roughly 200 billion. ...

6 answers  ·  posted 3y ago by Celestial Dragon Emperor‭  ·  last activity 3y ago by Celestial Dragon Emperor‭

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Q&A How many people can live on the oxygen provided by Earth?

I want to know the how many people can live on Earth's oxygen. Is there a point when humans would use up all the oxygen? What would be the limiting factors? Given we have charts to show the rate of...

3 answers  ·  posted 7y ago by Xm7X‭  ·  last activity 3y ago by Xm7X‭

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Q&A Death from old age has stopped, but fertility window is the same. What is the new population equlibrium?

I'm imagining a near-future world where a process can be undergone that will halt all future aging of the body, but the approach causes infertility. Those undergoing it will not have (biological) ...

5 answers  ·  posted 3y ago by dsollen‭  ·  last activity 3y ago by dsollen‭

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Q&A What's the minimum time that it would take for an advanced species to create an ecumenopolis?

In figuring out the rough timeline for my sci-fi, I've run into an interesting dilemma. As it stands right now, There are about 90 years in between one of my civilizations discovering space travel ...

2 answers  ·  posted 3y ago by greenmaster‭  ·  last activity 3y ago by greenmaster‭

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Q&A Russian Dolls - How do they reproduce?

Warning picture showing dissected Russian Doll My theory I believe that Russian Dolls reproduce asexually. They are born pregnant. At the time of birth, the outer doll dies. What is now th...

19 answers  ·  posted 4y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A How long would it take to revive an extinct race of people via cloning?

So there's this planet that, several decades earlier, suffered a massive famine and drought that made habitation impossible. Everyone still alive on this planet died, except for 2 escapees, both of...

1 answer  ·  posted 4y ago by The Weasel Sagas‭  ·  last activity 4y ago by The Weasel Sagas‭

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Q&A Calculating City Size based on Population

Question: I'm trying to determine how large (geographically) my city will have to be to accommodate for 1 million people. I have a city that was basically formed by the gods to be fertile land wit...

4 answers  ·  posted 4y ago by kentcdodds‭  ·  last activity 4y ago by kentcdodds‭

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Q&A Lego world. How do they reproduce?

It is difficult to find statistics for the ratio of Lego men and women in the general population but from a non-scientific survey, I get the impression that Lego men vastly outnumber Lego women. Ye...

9 answers  ·  posted 7y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A Counteracting Perverse Incentive effects in 1902 Hanoi rat population

A perverse incentive is a reward system that has the opposite effect to the one intended. In Hanoi, under French colonial rule, a program paying people a bounty for each rat tail handed in wa...

1 answer  ·  posted 4y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A How can a planet full of zombies reproduce and maintain its population?

How can we have a world that is inhabited only by zombies and yet continues to be populated? For the purposes of this question, I envisage the type of zombie that has been infected by a virus, is...

6 answers  ·  posted 4y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A In theory, could all mammals be wiped out by a single pathogen?

Pathogen Note: For the purpose of this question I define a pathogen to include viruses and/or bacteria. Edit: I don't exclude other biological agents such as fungi that might have the same effect...

10 answers  ·  posted 4y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A How long will it take for the amount of living to exceed the dead population?

The current world population is around 7 billion living people and 107 billion dead people. Since the population is increasing steadily and faster than ever, I was wondering if we could ever reach ...

9 answers  ·  posted 6y ago by roberrrt-s‭  ·  last activity 4y ago by roberrrt-s‭

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Q&A Cycle of Reincarnation - Bypassing the wait

Lets say for arguments sake, that a world, with maximum population of 5 billion, the common Joe gets reincarnated a few hundred times since the creation of humankind. This type of reincarnation is ...

2 answers  ·  posted 4y ago by Isillome‭  ·  last activity 4y ago by Isillome‭

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Q&A How to mitigate high infant mortality rates in a space colony

Judging by the majority of answers from this question: What would be a logical reason to explain space based families having more children than an earth based one the spacers are going to have lots...

4 answers  ·  posted 4y ago by Celestial Dragon Emperor‭  ·  last activity 4y ago by Celestial Dragon Emperor‭

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Q&A What's the highest population the Earth could possibly sustain?

Suppose that we pare down human consumption to a minimum survivable level across the Earth, and devote the entire surface of the planet (as well as the planet's interior, if needed) to support as m...

6 answers  ·  posted 7y ago by ckersch‭  ·  last activity 4y ago by ckersch‭

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Q&A What would be a logical reason to explain space based families having more children than an earth based one

In my yet to be named sci-fi universe humanity has begun to expand into space and has established large scale space stations near Earth and on places like Eros and Luna. I wanted the stereotypical ...

31 answers  ·  posted 4y ago by Celestial Dragon Emperor‭  ·  last activity 4y ago by Celestial Dragon Emperor‭

Question population
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Q&A How to determine reasonable population density of a three-dimensional volume

I'm attempting to rough-estimate potential population density of three-dimensional megastructures in space. Assume a filled spherical volume (i.e. death star, not Dyson sphere), where all internal ...

1 answer  ·  posted 4y ago by Knight Porter‭  ·  last activity 4y ago by Knight Porter‭

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Q&A If everyone in the world disappeared except 35 random people, how long would it take for one of them to realize they're not alone?

Everyone suddenly disappears from earth except 35 people randomly scattered wherever they were before everyone disappeared. How long would it take on average for 2 or more people to meet? What othe...

23 answers  ·  posted 4y ago by LDR‭  ·  last activity 4y ago by LDR‭

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Q&A How could names plausibly change over several generations of humans living in a space station on another planet?

I'm worldbuilding for a story in which a certain portion of the population relocates to a slightly habitable planet due to the complete inhabitability of Earth. It takes place several generations a...

13 answers  ·  posted 6y ago by miffed.muffin‭  ·  last activity 4y ago by miffed.muffin‭

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Q&A With access to near-future technology, what is the largest amount of healthy children a mother could give birth to in her lifetime?

Essentially for my story my Evil Empire needs a constant and huge amount of new population to conscript for their armies. The way they accomplish this is by forcing every female member of society (...

1 answer  ·  posted 4y ago by Sydney Sleeper‭  ·  last activity 4y ago by Sydney Sleeper‭

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Q&A What is a reasonable amount of population growth for 900 years?

Starting with about 500 humans and allowing for 900 years to pass, about how many people would there be at the end? (Just asking for a rough estimate, maybe a range.) Assuming: People are general...

7 answers  ·  posted 8y ago by Alex MC‭  ·  last activity 5y ago by Alex MC‭

Question society population
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Q&A Reasons for pregnancy to be difficult in long-term space travel

I am looking for medically viable reasons why we might discover it to be more difficult than expected to bring pregnancies to term in space. This is for a society based approximately 75 years in th...

3 answers  ·  posted 5y ago by Ksamby‭  ·  last activity 5y ago by Ksamby‭

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Q&A How much life could our galaxy support?

Okay, so we are figuring out, that at least for how we are running things now, our Earth can fit about 10 billion people. We can probably raise if your economy distributed resources more efficientl...

4 answers  ·  posted 7y ago by PyRulez‭  ·  last activity 5y ago by PyRulez‭

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Q&A Saving the planet by reducing the population

A train of thought is that a lot of our problems could be solved by reducing our numbers. For this question I am limiting it to environmental changes. For example: a successful species will increas...

8 answers  ·  posted 6y ago by Bjorn‭  ·  last activity 5y ago by Bjorn‭

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Q&A Which is initially more favorable; large or small settlements in a new planetary colony?

I have a question that concerns a story I am writing and I hope it is a valid one to ask. But in my story, several groups of colonists, each arriving on different ships at relatively the same time...

13 answers  ·  posted 5y ago by Noah‭  ·  last activity 5y ago by Noah‭

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Q&A What is the result of a genetic mutation that disallows female offspring?

Premise: Assume that one man has a genetic mutation such that his gametes (sperm) never have an X-chromosome. Unlike most men (who have a roughly 50/50 chance to sire a male or a female child) t...

8 answers  ·  posted 5y ago by Stem‭  ·  last activity 5y ago by Stem‭

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Q&A Is it plausible that humanity goes extinct due to not making enough children? If not, what would make it more plausible?

With the increase in living standards, the number of children by women is decreasing in highly developed countries. Question: Is it conceivable (with the aggravating factors proposed below) to s...

14 answers  ·  posted 8y ago by dyarob‭  ·  last activity 5y ago by dyarob‭

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Q&A Gravitational Implications of a "Light Year City"

The "Light-Year City" Questions "” What would be the gravitational implications of a city in the far, far distant future, with an area spanning one square light year (3.456 × 10^25 mi² area)? Th...

6 answers  ·  posted 6y ago by Ian‭  ·  last activity 5y ago by Ian‭

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Q&A Ethical solution to generation ship where new generation want to go home

I can easily set a story in a dystopian environment not subject to ethics, but I would rather try to create a backdrop that is as ethical as possible given the requirements. I feel that writing abo...

13 answers  ·  posted 8y ago by trichoplax‭  ·  last activity 5y ago by trichoplax‭

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Q&A What would a realistic ocean size for human migration be?

I am making a game folowing the development of civilizations on an alien planet, however as i am almost done with the geography of this planet, i have come to realize that my continents which are s...

2 answers  ·  posted 6y ago by Nikolaj‭  ·  last activity 5y ago by Nikolaj‭

Question planets population
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Q&A Time duration for development of different physical attributes

On my fictional planet humanoid aliens have evolved on one continent, and have since spread around the entire planet, just like humans did on Earth. On Earth humans have since developed slightly di...

3 answers  ·  posted 6y ago by Nikolaj‭  ·  last activity 6y ago by Nikolaj‭

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Q&A Could hydroponic farms reasonably feed 100 billion people?

I really think that we can feed way more than our current population using more advanced farming IF WE FIND A WAY TO PRODUCE CHEAP RENEWABLE ENERGY. The solution would be hydroponic vertical farms...

6 answers  ·  posted 6y ago by Fred‭  ·  last activity 6y ago by Fred‭

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Q&A How exactly will humanity leave Earth?

"It will be difficult enough to avoid disaster in the next hundred years, let alone the next thousand or million." "Our only chance of long-term survival is not to remain inward-looking on p...

7 answers  ·  posted 6y ago by Zxyrra‭  ·  last activity 6y ago by Zxyrra‭

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Q&A The 3% long term consequences

WARNING THE FOLLOWING CONTAIN SPOILERS! I watched the first season of The 3% and I am wondering about the wisdom in the strategy adopted by this world. Spoilers Specifically, if the 3% ( "smar...

4 answers  ·  posted 6y ago by grldsndrs‭  ·  last activity 6y ago by grldsndrs‭

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Q&A Maximum Earth population given biological shrinking

I want to create a world set on our Earth but with humans shrunk down as much as possible to allow a huge population. As the population increases they genetically modify their bodies to be as smal...

3 answers  ·  posted 8y ago by trichoplax‭  ·  last activity 6y ago by trichoplax‭

Question biology population
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Q&A Would the death of 50% of the human population drastically reduce carbon dioxide levels?

It is well known that in respiration, we produce carbon dioxide, while plants, via photosynthesis, absorb CO2. My question is, if 50% of all people die today, will the total amount of CO2 decrease ...

4 answers  ·  posted 7y ago by Quark‭  ·  last activity 6y ago by Quark‭

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Q&A Reasonably housing a billion students

In my world (set in the near future - no magical tech), every child after reaching the age of 1, is sent to study for 15 years in a centralised location shared by the entire world. With some playin...

1 answer  ·  posted 6y ago by Haedrian‭  ·  last activity 6y ago by Haedrian‭

Question population
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Q&A How do I increase my population of my very small starter population while warding off the negative effects of inbreeding?

In my pre-bronze age city, there are roughly 20,000 individuals. 9,000 sexually mature males, 9,000 sexually mature females, and 2,000 children. For a variety of unimportant reasons, they have been...

8 answers  ·  posted 6y ago by System‭  ·  last activity 6y ago by System‭

Question society population
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Q&A What would the average tech level be for the common folk in a space empire?

In Star Gate, the Ori are notorious for keeping the tech level of their planetary subjects at or under medieval tech levels. It has been said (still looking for the exact source) that if everyone l...

5 answers  ·  posted 7y ago by JDSweetBeat‭  ·  last activity 7y ago by JDSweetBeat‭

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Q&A What would be life living in an underground magma bubble city?

Let's say, we've surpassed all tolerances of population. But, mega-corporations found a creative way to solve the problem. They dug into the Earth to build bubble cities in magma. They have access ...

2 answers  ·  posted 7y ago by user931‭  ·  last activity 7y ago by user931‭