Questions tagged [post-apocalypse]

For questions dealing with events taking place after a catastrophic event.

Filter by
Sorted by
Tagged with
1
vote
5answers
302 views

The amazing time-capsule. What does it mean?

Background Thousands of years in the future, after a catastrophic pandemic a single population of humans survive. At the time of the event these people escaped because they lived in isolation in ...
6
votes
6answers
616 views

How do I create a societal collapse with ruins, while the tech can make Ridiculously Human Military Androids?

How do I create a societal collapse with ruins, survivors, and the weaponry is back to pre-gunpowder technology (swords, shields, bows, etc.), while the Pre-Collapse tech can make Ridiculously Human ...
2
votes
5answers
884 views

How can a person without Geiger counter and modern education in physics learn the concept of radioactivity?

Imagine there are two regions, one of which has a significantly higher level of radiation. Think of Pripyat (higher level of radiation) and its surroundings (lower levels). How can a person without ...
27
votes
9answers
4k views

Can you buy your way out of the Apocalypse?

It is often suggested that if a an imminent crisis was about to occur such as a huge comet strike or Yellowstone erupting, that all the rich people could buy their way into special bunkers to protect ...
8
votes
3answers
890 views

Corrosive oceans and seas - how would this affect our world?

Okay, I will make a little premise/context to give the question a decent background. I know that the scenario could look rather "handwavy", but take it as the framework on which the answer should be ...
1
vote
1answer
198 views

World after extreme nuclear radiactivity and mass reproduction

For whatever reason earth has been contaminated with extreme amounts of nuclear radioactivity that cause dna changes as much as that would be possible, countries from all over the world come to an ...
2
votes
3answers
141 views

Is an earth plausible without vegetation but a select few city-sized vegetation biomes survive?

I was asked this question over a few beers; what would be the practical considerations for a world in which vegetation has died. Humans exist in small, self-sufficient biomes representing city-...
4
votes
2answers
2k views

How many Swiss would survive 100 years after a nuclear war?

After receiving great answers on my previous question, I've thought hard, how to create a story, in which there is a large-enough group of people (at least 100 highly educated people and enough others,...
17
votes
6answers
2k views

Time no longer passes except near intelligent creatures, how does the world continue?

Time stops nearly everywhere, time only continues in a area around creatures of a certain intelligence. The worlds population is suddenly thrown into darkness as time ceases throughout the universe ...
20
votes
13answers
4k views

What non-intuitive modern items would be useful in a medieval-ish world?

The world is similar to that in Prince of Thorns: namely, so far in the future that civilization has essentially reset, and is back to a medieval level of technology and culture. However, there are ...
2
votes
2answers
305 views

Aliens steal our trees

Aliens steal all our trees. Nothing else happened, just all the trees are gone. Everything not part of the tree was left where it was (apples are stolen, termites are not.) What would be the short ...
-1
votes
1answer
198 views

Aliens put us on the moon

So some aliens come, put everyone in space suits, and drop us one the moon. The aliens are super smart, and the space suits have enough air for a year, and can't be damaged easily, and only upon from ...
-5
votes
3answers
771 views

What if the earth was turned physically inside out?

Let's say some magic aliens come and prank us. They, in one step, remove out the innards of the earth, and put everything on the surface on the inside. They make some artificial gravity so we stay on ...
9
votes
6answers
19k views

What if the earth was physically split in half?

This question asks what if the world was divided into two regions? I'm asking what if the world was split into two planets. Let's say some aliens come to Earth and prank us (apparently they never ...
1
vote
1answer
212 views

Where could Humanity live on Earth had LA Apocalypse not been resolved?

In the terrible movie LA Apocalypse the planet's core destabilized causing the fault lines to erupt, magma spilled out, earthquakes going every 5 minutes. Eventfully things were resolved by detonating ...
39
votes
10answers
55k views

How many people are required for a healthy re-population of the Earth (Post-Apocalypse)?

In my particular Earth, much has remained after the human-killing virus, and nature is thriving - even taking over the cities. It's beautiful. But I have separated the healthy populace in orbit ...
39
votes
32answers
31k views

Most effective long-term zombie killing weapon

So I asked this question a few days ago, with excellent and certainly useful feedback. I've decided I'd like to build upon that question with some ways to combat our 'new and improved super zombies'. ...
5
votes
3answers
2k views

How long could the survivors of a nuclear war maintain a civilized way of life?

Imagine there is a nuclear war and the only people, who survive it without getting sick (without breaking their DNA and suffering from radiation-induced diseases) is the military personnel (couple of ...
3
votes
6answers
535 views

How to justify the absence of other countries?

The world that I'm creating is Indian mythology based but based in a post apocalyptic earth. (You know, the usual, nuclear war... World population gone, only 2-5% left). Now the thing is that, ...
13
votes
3answers
968 views

People of the Sea- Living on a Migratory Fleet

Okay, following my previous core question, after the apocalypse, one of my sets of survivors in this setting, the Usnay, managed to live in a fleet of ships for over a thousand years. This is ...
9
votes
3answers
695 views

Surviving for a year after everything dies

Vis Vitalis was real. It was a power that allowed life to exist, that gave direction to processes inside living cells, guiding RNA chains towards the ribosomes, making the proteins align where they ...
11
votes
3answers
2k views

How long would a carrier group survive unattended anchored just off shore

Take the situation of a modern carrier group (Aircraft carrier, etc.) anchored just off shore (far enough that they initially couldn't run aground) with all the crews abandoning ship for land (in a ...
5
votes
4answers
527 views

What percentage of the population is required to keep the electricity functioning?

Assuming a random distribution of people suddenly vanish (or die from some form of disease, are abducted by aliens, or similarly incapacitated), how high would the % have to be to disable the power ...
4
votes
7answers
1k views

In a post-apocalyptic world (>100 years since the fall) where could you find explosives

In a post-apocalyptic world where disease wiped out most of society over 100 years ago, where could you find explosives? The situation is that an army is coming to attack a group of survivors and the ...
9
votes
2answers
2k views

In an all-out nuclear war, how long should people remain sheltered?

Fairly common in sci-fi literature is the scenario where the Earth is destroyed by an all out nuclear war. Typically, the protagonist has survived by remaining in underground shelters for decades ...
3
votes
1answer
434 views

Long-term ecological effects of a global (but strategic) thermonuclear war

I'm currently toying with a post-nuclear apocalypse, with most, if not all, human survivors living in underground bunkers or vaults, and probably away from previous population centers—my test case is ...
4
votes
3answers
383 views

Stranded in a supermarket. What items will never be useful? [closed]

Let's say you are stranded in an average CVS Pharmacy or Wallgreens in a post-apocalyptic world. While this building has been untouched, there is nothing else around you for hundreds of miles and you ...
13
votes
7answers
2k views

What would be the development of the most valuable, irreplaceable food trade goods in a post-apocalyptic world?

So imagine any typical post-apocalyptic world, recently cast into their misfortune. A very large percentage of humanity has been killed, leaving a very large stock of property to be looted. I suspect ...
8
votes
4answers
2k views

In a post-apocalyptic world, would plastic be more useful than metal as currency?

What would be more valuable in a post-apocalyptic world and/or more suitable to be used as currency: plastic or metal bottlecaps? The Fallout video game series popularized the use of metal bottlecaps ...
7
votes
16answers
836 views

How can I justify the absence of weapons? [duplicate]

Think of a post-apocalyptic world: 2% of the population survived, the world is in utter disarray - the works. The entire populace is controlled by a special group of advanced people, who control all ...
10
votes
5answers
2k views

How can I generate electricity inside a cave network?

After a particularly large bombing raid during a war, a mountainous rural region is left mostly destroyed. Villages are in ruins, bands of survivors look everywhere for food and shelter, and all hope ...
11
votes
6answers
1k views

How long can knowledge stagnate before it may be deemed 'fantasy'/lost' in folklore?

News media showcase any number of potentially depressing events around the globe - internecine conflicts, ethnic conflicts, catastrophes and what-not. The corollary constitute fiction as depicted by ...
9
votes
6answers
746 views

How feasible would mass scale metallurgy be for a post-apocalyptic civilization?

Let's assume that civilization is a total loss so after the initial die-off humanity has to rebuild itself from the hunter-gatherer stage. In a particularly harsh environment it may take a few ...
6
votes
6answers
423 views

How would the appearance of Earth from orbit change when it would be rendered uninhabitable?

Through extreme pollution and large-scale warfare with atomic, biological and chemical weapons Earth has become completely unable to sustain life. The atmosphere is toxic, the water undrinkable and ...
5
votes
2answers
659 views

What would the impact of dramatic drop in temperature due to an asteroid strike be?

Assume that an asteroid strikes earth somewhere in central Eurasia, kicking up enough dirt and ash into the atmosphere to darken the sun and cool the surface of the earth for a millennium. I know that ...
17
votes
6answers
2k views

So we've survived the apocalypse. What's next?

The year is 2032. The location, rural midwest North America. A decade ago, a plague wiped out almost every living human. There weren't even enough survivors to bury the dead. Secondary plagues rose ...
12
votes
8answers
1k views

How can a world with constantly-moving nomads form?

I've been working on a world for a game I'm making. The basis of the game is that you have to carefully manage your resources, and to keep moving. I'd like to build a world which fits that. These are ...
4
votes
3answers
3k views

How long would a planet take to recover from a large asteroid impact?

As part of my world's planetary history, an asteroid impact has delivered a sizable quantity of a previously unknown metal to the planet Earth. By sizable I mean a deposit large enough to sustain a ...
5
votes
8answers
1k views

Third World Countries societies created and populated only by young people

Related, and in continuation to How would societies be if created and populated only by young people? In the previous question I asked about society as it would exist in western/first world countries ...
25
votes
8answers
9k views

How would societies be if created and populated only by young people?

I’m writing a post-apocalyptic RPG, but I have a problem when dealing with the reconstruction of the society. The apocalypse left alive only the young people up to 21 years of age. Even though the ...
17
votes
7answers
2k views

Currencies when known encryption systems become obsolete

Current Bank security is based on encryption, once quantum computing or another system to break security is invented all banks are unable to securely transfer money digitally. Assuming banks are ...
25
votes
11answers
3k views

Restoring the world after a global apocalypse

So the world has been destroyed. Pick your poison. We have probably 300 different scenarios lying around here somewhere. What's Left: The world is a desolate wasteland, dry and crispy and barren ...
13
votes
7answers
16k views

How would lack of sunlight affect a human population?

Other than photosynthesis being an issue, if the Earth's surface became inhospitable and humans were forced to live underground, what biological changes would they be expected to go through to adapt ...
7
votes
7answers
1k views

Are these gaps in post-apocalyptic tech possible?

So humans ended up all dead in a hundred years, and then after some time humans appeared back on Earth, but know nothing about the previous humans. They found records and blueprints of things like ...
14
votes
9answers
2k views

What will remain from an eco-friendly civilization after 10,000 years?

Let us assume that about 10,000 years ago there was another human civilization, that was quite similar to humanity. Physically they are humans. The state of development of this civilization is quite ...
18
votes
9answers
3k views

What would be a realistic, competent response from the rest of the world if Britain were wiped out by a zombie virus?

I am referring to the situation described at the start of the movie 28 Weeks Later, where Britain had been wiped out by a zombie virus, but the rest of the world was (seemingly) fine. What would be a ...
6
votes
5answers
765 views

Postapocalyptic, Venus-like planetary atmosphere

This question is about the same postapocalyptic future setting as this one, so you might want to refer to it, if you have any questions… about my question: What species, if any, would survive this ...
6
votes
3answers
931 views

Can cities and homes stop being functional during an impact winter where the only option is move on?

Following up on this question, Would Living Underground during Impact Winter be Ideal, I realized I have more questions. I was asking about an impact winter that was caused by an asteroid and leads ...
17
votes
4answers
2k views

What proof could Ragnarök leave behind?

Ragnarök is the Norse rendition of the apocalypse. A major event during this apocalypse is Fernir devouring the sun. If we assume that the sun and all of its influence disappear entirely for 3 days, ...
8
votes
4answers
1k views

Would living underground during an impact winter be ideal?

I was looking at these two questions: Expanding Occupied Underground Habitations Safely Does Living without access to Sunlight have known Physical/Psychological effects? And in a story I'm writing, ...