Questions tagged [reality-check]

Asks if a given concept is realistic in a given context. Answers should say yes or no, with supporting info. Compare this with the science-based and hard-science tags. This tag should never be the only tag on a question, because this tag frames how a question should be answered, not the topic.

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1answer
35 views

Feasibility of compressing matter to Electron-Degeneracy

So, I have been a bit disappointed with the answers on how to store Degenerate Matter from my previous thread, and now I even wonder how one can produce it at all, without the femtotechnology hocus-...
4
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2answers
45 views

Constructing a doomsday machine by manipulating the Higgs Field?

I've been working on a sci-fi series set about 1000 years in our future. The discovery of an alien threat leads the ruling government to conceive of a doomsday machine, which they hope will be so ...
-1
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0answers
30 views

How could superhuman speed and speedsters be made scientifically sound? [closed]

The usual problem I hear about superspeed, is that the human body would be torn apart while running at the speed of sound, regardless of anything else. Also, there really isn’t anything that exists ...
4
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1answer
71 views

Feasibility of Flywheel-Powered Artillery

As far as it is known, Flywheels are extremely efficient in energy storage, with the best even able to replace even the strongest batteries. They are accelerated by electricity to extremely high ...
1
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4answers
115 views

The biggest e-ink display in the world

tl;dr: What could be an approximate size of the biggest e-ink display with current Kindle-like pixel density if we would use nowadays the biggest available computing power to make it usable? Imagine ...
2
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2answers
135 views

Would a parasite that turns peoples into succubi/incubi be possible?

I like demons as they're portrayed in popular culture. I wanted to make a "anatomically correct" succubus question, but StackExchange tells me that this one already exists (even if it is not ...
4
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4answers
603 views

Feasibility of Relativistic Artillery / Kill Vehicles

As far as it is known, Relativistic Kill Vehicles are a common weapon in science fiction and are rendered as powerful as nukes just due to their kinetic energy alone, a finite mass being propelled at ...
1
vote
1answer
84 views

could we create a society with no knowledge of the outside world? [closed]

could there be a way for, lets say our government, to start an isolated society which does not have any knowledge of the outside world? could this be possible?
4
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4answers
417 views

Would an alien race with diffused organs be viable?

The purpose of this question is to get an alien race with a diffused set of organs, which makes any part of their body interchangeable. Why would a species need this? Well for one it might be because ...
2
votes
2answers
181 views

Would the Flamebreaker Armor in “The Legend of Zelda: Breath of the Wild” work?

The Flamebreaker Armor is a full plate armor present in the videogame The Legend of Zelda: Breath of the Wild, which protects the wearer from heat. When fully upgraded, it makes the wearer fireproof ...
2
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3answers
218 views

Feasibility of Ordinatus' Hellfire Missiles

I was looking for special missiles that do more than just explode or release radiation, thus I looked at some of the harder Warhammer 40k weapons, until I came across the Hellfire Missile. To ...
2
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1answer
122 views

Could a Hormagaunt evolve naturally? [closed]

This is a tyranid hormagaunt from Warhammer 40000: What I am asking is: could a creature similar to a hormagaunt (six-limbed, chitin (or something similar) plating, roughly pony-sized, reptilian head/...
3
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1answer
124 views

Feasibility of Actuator-Boosted Ammunition [closed]

I was searching for better forms of ammunition across the net, which could replace the current standard types of ammunition, and I came across an interesting one on Deviantart, called Jackhammer ...
18
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2answers
4k views

A character steps outside in the upper atmosphere of Venus- how sunburned is he?

For complicated reasons our hero's blimp in the Venus atmosphere at an altitude of 50 km gets a tear in it and sunlight floods inside (there is no gondola, the blimp is a semi-ellipsoid of breathable ...
1
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4answers
223 views

How can a large creature be deceptively fast?

So as I was creating a variety of creatures I wondered if speed is exclusive to smaller creatures or if a large organism could move deceptively fast to take prey or predator by surprise. This is ...
2
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2answers
149 views

Making an object to reach Jupiter's core and return information?

Would it be possible to create a probe which could survive the crushing pressures and temperatures to reach the solid core of Jupiter and return data to Earth? What would make this impossible? This is ...
-1
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2answers
84 views

Feasibility of the neuro strain

The neuro strain is a (virus) strain that affects the nervous system in drastic ways. Firstly, when the host is affected, their body will grow bigger than it would have originally been but not much ...
1
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2answers
98 views

Feasibility of the hypo-strain

In the isle, a game about dinosaurs and a extensive lore, there are strains (viruses)that cause or inflict different effects on the affected dinosaur. The hypo strain is capable of making the body of ...
0
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1answer
116 views

Feasibility of the Spore Mantis

In the movie, Kong: Skull Island, there is a species called the Spore Mantis. When stationary, the Spore Mantis looks like a giant, dead log. When active, it looks like a giant insect - a giant, ...
0
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1answer
128 views

Tongue Keyboard [closed]

It is fascinating (and perhaps a bit scary) anticipating the human-technology interface in the next hundred years or so based on the acceptance of mobile computers in recent years. Based on current ...
3
votes
2answers
728 views

Cutting an apple in a blink of an eye [closed]

Lets say you are John and a Master of using samurai sword, there is an apple in front of you and you slowly put your body to a stance while slowly pulling your sword from its container as soon as the ...
3
votes
7answers
2k views

Not being able to recognize yourself as an old person [closed]

Let's say you are a young (20 something) clone of an old (over 80/90) person. Under what circumstances you'd be unable to recognize them as being... well, you? To make things even more complex, your ...
5
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1answer
626 views

Is this a plausible interstellar propulsion system?

Interstellar travel is hard and complicated, yet I want to have a plausible interstellar propulsion system for my setting. Rockets are out because of the rocket equation and the horrible top speeds ...
9
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4answers
381 views

Can korean bolt throwing cannons not be a dead end?

Alright, this will take some time to explain. There is historical context to my question. Over the course of the period of time from 16th century to the first half of 19th century, the European ...
0
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0answers
103 views

Using medical oxygen, how long can I breathe underwater in a bushfire? [closed]

This is a slightly different question to this one, but relevant to the subject of survivable oxygen concentration. I live in South Australia in a severe bushfire risk suburb in the Mt Lofty Ranges. ...
4
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2answers
79 views

How plausible would it be for post-apocalyptic survivors to develop a mass psychosis/culture bound syndrome of seeing ghosts?

Some kind of WW3/resource war event happens. The majority of human beings (definately over 90%, so billions) are killed by a series of bioweapon diseases used by both sides or die in the ensuing ...
3
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6answers
275 views

How could a “Lonely Mountain” form?

I have seen some discussions about Middle Earth's Erebor, the "lonely mountain" and how it really isn't lonely. How could a true "Lonely Mountain" (a single peak in the middle of a vast plain) form? ...
3
votes
1answer
88 views

Could a waterborne virus contaminate the entire ocean?

Is it plausible that a virus could contaminate the entire ocean to where humans that enter it are highly likely to contract the virus? It doesn't necessarily have to be the whole ocean what with the ...
1
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2answers
191 views

The Heptapods from ( The Arrival )

In the movie, Arrival, there is an advance alien race that arrives on are planet, with a few landing in specific places. The aliens species are called "heptapods" (by our standards). They have 7 ...
1
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5answers
180 views

How could mind relocation work?

When thinking of trans-humanism it's fairly common to find in fiction the idea of mind uploading, brain emulation, etc. But I was wondering how would it be possible to relocate a conscious mind to ...
6
votes
1answer
68 views

Would there be Rayleigh scattering in an atmosphere of sulfur dioxide?

Can a planet with a dense atmosphere composed mainly of sulfur dioxide have a blue sky like Earth's due to Rayleigh scattering? Or would the composition change the color of the sky? I mean, it's well ...
-3
votes
3answers
70 views

Oxygen-carrying vascular nanobots [closed]

People in my setting can have artificial red blood cells (they're nanobots or something similar). These are designed to fulfill the same role as regular red blood cells but have a much higher oxygen ...
3
votes
1answer
133 views

Anatomically Correct Pacman

Imagine a spherical creature the size of a 18 wheeler without the trailer, how does it moves in search for mates? Would rolling around be easier and consume less energy than bouncing or wiggling? How ...
3
votes
0answers
96 views

Anatomically Correct Enderman [closed]

As a fan of some of the unique creatures of Minecraft and after looking at the Anatomically Correct Creeper, I was wondering would an Enderman be possible? Enderman Facts: They're from a game called ...
14
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12answers
11k views

Is stealing the moon actually possible?

I'm writing a heist story set in the near future. The goal of my main protagonists is to actually steal the Moon. The budget of their escapade is not a variable; they will get this done however ...
6
votes
8answers
286 views

How could sentient stars work?

I'm considering making one "creature" that is encountered in a story a sentient star in an alternate universe. I hope to hand-wave a little of the more complicated stuff by saying "this universe's ...
5
votes
4answers
208 views

Skysteading: How to build a flying city

I am building a city in the sky; it floats thanks to hot air balloons and hydrogen. The main issue I have is how to make it grow, as this is not some kind of giant structure to start, it is a small(...
4
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4answers
227 views

Reality Check: Space Gulag

How realistic is the concept of a space gulag? So let's say you want another option outside of a stern talking too, a fine, confining to quarters, demeaning tasks, VR "re-education," beating the snot ...
0
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2answers
137 views

How to make a planet with a chunk missing from it? [closed]

In the forgotten mists of time a Great War was fought. During that war the planet Kutok had a massive gouge (averaging 1,000 miles across and 4,000ft deep) and extending North from the polar cap down ...
8
votes
5answers
2k views

Feasibility/Logistics of equipping an army with revolver rifles

Assuming the technology level is about the same as that of the mid 1800s, what would be necesssary to equip a sizable army with revolver rifles? I've seen pictures of individual soldiers with ...
0
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2answers
121 views

The feasibility of making a body building machine [closed]

I’ll try to explain this as short but as defined as I can. Say one day in the not too distant future, mankind has finally figured out a medicine or treatment that slows down ageing. Familiess have ...
1
vote
2answers
97 views

What events caused the formation of the 18th century Dutch-Scandinavian Republic?

I'm in the early stages of an alternate history novel (and at a push a light fantasy) in which I like the idea of a unified Scandinavian Nation/Republic to compete with Britain and France for control ...
4
votes
3answers
199 views

The Properties of Flaming Fire Magic

Magical fire is often depicted as flames. To get fire and flames the right mixture of oxygen, fuel and heat is needed. Assuming that the magic only provides the heat, there are only two chemical ...
5
votes
3answers
528 views

Could a waiting list be used as a monetary system in a post-scarcity society?

I'm writing a futuristic sci-fi story that takes place in a mostly post-scarcity economy. Resources are abundant, and no one needs to work for basic necessities or luxuries. Robots do all manual labor,...
-3
votes
1answer
121 views

Can Communism become a stable economic strategy? How? (Update) [closed]

Inspired by this question, I'd like to re-review if Communism can ever become a stable form of government. To help restrict the scope of this question, please allow me to add the following ...
0
votes
4answers
141 views

Could pre-New World Native Americans open a modern safe using only their tools?

Suppose you've got a standard, protect-your-important-papers type safe like this one: And you've got a group of 15th century Native Americans: horses, fires, knives, bows and arrows, etc... Could ...
3
votes
3answers
140 views

What could cause the majority of people to live in space habitats?

So I'm thinking here about the sort of setting like Eclipse Phase, in which virtually all of humanity lives in a wide range of space habitats because of an apocalypse on Earth. I am imagining a ...
3
votes
1answer
114 views

Position and Size of my Continents/Islands

its my first time posting here and i hope i do it right (watched the tour and all that). I've designed a World Map and would want to know if it looks realistic like that in terms of positioning of ...
2
votes
1answer
86 views

Feasibility of the rotten vale

I recently asked a question about’ “The feasibility of the coral highlands”, which come from a game called “Monster Hunter World”. In the game, there is another place, called, “The Rotten Vale”, which ...
5
votes
3answers
581 views

Feasibility of the coral highlands

In the game Monster Hunter World, there is a place called the coral highlands. The coral highlands is one of the most spectacular things to look at in the game, having a resemblance to a ocean without ...