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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6
votes
1answer
220 views

Feasibility of tzeentch inspired species

Tzeentch, the weaver of destinies, the architect of fate, originates from the Warhammer 40K universe and is the god of knowledge, change, and evolution. However, I will take away the god like ...
4
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2answers
162 views

Feasibility of nurgle inspired species

Nurgle comes from the Warhammer 40K universe, he is described as being the lord of plague or the god of diseases, decay, and destruction. I will, however, take away his god like attributes, and true ...
3
votes
1answer
125 views

Feasibility of making a quantum destabilizer

In an advanced dystopian future, humanity has made a weapon that is capable of destabilizing quantum particles. This has resulted in the mass death of civilians and has caused massive destruction to ...
9
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4answers
197 views

How could crystal lifeforms move and work?

I have a creature that is made of crystal. The problem is, crystal as I know it is structured in ways that don't allow for flexible movement as we are able to do. How could a lifeform made of crystal ...
6
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5answers
2k views

What is the feasibility of an open air contaminant (carbon monoxide) for warfare?

Militia Y intends to burn massive amounts of wood in order to produce carbon monoxide to be used as an air contaminant in warfare. Defence: to be asked as a follow-up question. Time period: ...
23
votes
15answers
7k views

Where could a vampire get blood without harming people?

I am looking for possible ways in which a vampire could obtain blood to feed in an modern urban fantasy setting explicitly without harming humans or other sapient beings. Parameters for this question ...
1
vote
1answer
166 views

Feasibility of a species based on Nyarlethotep (of HP Lovecraft lore)

Nyarlethotep (the crawling chaos, the evil with a thousand forms, the messenger of the outer gods) originates from the literature of HP Lovecraft and is by far one of the most evil, sadistic, and ...
1
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2answers
107 views

Creating a Hard and Feasible Molecular Disrupting Beam

A common weapon in science fiction is the Molecular Disrupting Beam, which disintegrates anything caught by the beam into basic atoms and molecules with no wound or gash, more as if a portion of the ...
4
votes
3answers
230 views

Would it be possible for neanderthals to not go extinct, and perhaps build their own nation?

Let's say that somehow, enough Neanderthals survived after the last ice age to be able to form a centralized government, economy, etc. Would this even be possible? What events could lead to this?
6
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1answer
215 views

Feasibility of a species based on Yog Sothoth (HP Lovecraft lore)

in the Cthulhu mythos, yog sothoth is depicted as a mass of splitting and fusing orbs, it is the past, present, and future and seemingly knows everything. but for the sake of trying to make it ...
-1
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3answers
248 views

Convince 11th century people that I am from the future [closed]

I am a time traveller. I want to change the result of the Battle of Hastings. To achieve this, I need to learn king Harold Godwinson's (and his baronets') trust. To do this, I decide to reveal that I ...
-2
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1answer
78 views

What’s the energy required to traverse through dimensions

Say in the future, humanity has developed technology to the point that it allows them to traverse through other universe, each universe having something either drastically different or not so ...
12
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2answers
238 views

Feasibility of flesh pillars

In the future, humanity has discovered countless worlds, some filled with life and others not. Likewise, they discover another world that is habitable, they study its various ecosystems, it’s ...
2
votes
1answer
100 views

Plausibility of a creature made of ice or other low melting point materials

When I was younger I came up with a creature that seemed to contradict itself. It was made of some frozen material, but it had a large back fin in order to get warmth from the sun. I'm revisiting the ...
4
votes
5answers
214 views

Swords as a standardized sidearm and tool

The swords in question are basically machetes, being built for toughness and as a slashing weapon. The army that is using these swords is a professional force of pikemen and crossbowmen, but is ...
1
vote
1answer
77 views

Feasibility of space faring centipedes

In the distant future, humanity has encountered, made peace and wars with countless advanced civilizations, but one civilization that still baffles them, is the race of intelligent centipedes. The ...
5
votes
3answers
246 views

Are planets like the “To'ul'hian Worlds” from Orion's Arm plausible?

The Orion's Arm Universe Project includes a description of what they call "To'ul'hian Worlds", planets that are (in the simplest of terms) a cross between Earth and Venus. I'm working on designing a ...
1
vote
2answers
113 views

Feasibility of The Culture's Effector

Currently, there are wave beams / lasers / rays that operate from the X-Ray region to the Radio Wave region. Patents to create Gamma Ray beams / lasers / rays are also underway. However, I have ...
1
vote
2answers
106 views

Feasibility of a creature that can affect biology

On a distant, habitable world, humanity has observed a biological marvel. A creature that is primarily carnivorous, roaming its planet jungles and deserts, has been observed to be capable of ...
0
votes
2answers
112 views

Feasibility of a creature that leaves behind crystal like formations

In a distant future, humanity has colonized and catalogued countless worlds in their home galaxy. However one day humanity has discovered a few habitable words in the Andromeda galaxy. After a while ...
2
votes
4answers
215 views

Would a creature with a ceaseless hunger feasibly exist

Say one day humanity has found a planet that supports life. It’s filled with luscious forest and barren deserts, and various ecosystems that resemble Earthly ones. After a single year of researching ...
1
vote
3answers
157 views

Population math question

So I have a religious group that settled a new continent and made a colony in 1630. If that nation has thirty-six million people in the modern day (2020 at time of posting), how do I calculate the ...
1
vote
2answers
82 views

Feasibility of Laundry Files' Scorpion Stare

So, people have been accustomed to mythical beings such as the Basilisk and Medusa, turning people to stone and such. This concept, however, has rarely appeared in sci-fi. Until I came across the ...
4
votes
2answers
464 views

Dyson Sphere only ever possible theoretically

Assume technology more advanced than current levels, let us theorise for this question that we are capable of reaching and if needed extracting material from any planet or moon / body in our solar ...
16
votes
20answers
8k views

Reasons a fictitious metal is really hard to refine?

For my story there exists a fictitious element with special properties. In its pure form is most closely resembles metal (for its physical properties) This material is quite abundant in salt and ...
3
votes
4answers
211 views

Could two related species be capable of breeding again?

Let's suppose that a homo species divides in two separate species (like H. sapiens and H. neanderthalensis) and they cannot breed. Could their descendants evolve to be capable of reproducing together ...
3
votes
4answers
214 views

Would a large gliding predator be viable?

Most animals that glide are rather light and small. Flying squirrels, Colugos, and sugar gliders all weigh but a few ounces. The largest gliding predators are snakes of the Chrysopelea genus. Again, ...
7
votes
2answers
883 views

Would Game Driving be a viable strategy for dragons?

The Game Drive system, perhaps best exemplified by the “Buffalo Jump” of the North American Plains Indians is a hunting strategy in which large animals are chased into a preselected kill zone, such as ...
4
votes
1answer
131 views

Would a large and venomous mammalian predator be viable?

There are several mammals that are actually venomous. Several species of shrews, Solenodon and the Platypus are all venomous. While the platypus is the largest of these, it uses it in self defense ...
3
votes
1answer
147 views

Would insect farming be viable for a preindustrial society?

Many societies have and continue to practice entomophagy, and many environmental activists promote the consumption of insects as an environmentally friendly alternative to traditional meat. It is ...
5
votes
1answer
86 views

Neurotoxic Bioaccumulation in Land Vertebrates

Bioaccumulation and Biomagnification are common concerns in marine environments, with natural examples like Ciguatera being a well known example caused by an algae that grows on coral that is then ...
4
votes
3answers
363 views

is it possible for a kingdom to live off of rice, beans, eggs, potatoes, and chicken, and general food from foraging and hunting?

my question is literally right there. the general amount of people is about 2500 people. 1000 are men, 1000 are women, and 500 are kids. whatever farm area amount is required, I won't mind. as long as ...
12
votes
8answers
5k views

Could accuracy compensate for lack of strength in archery?

Setting: I'm worldbuilding a medieval fantasy which I try to keep as realistic as possible. In my world, fantasy races are subspecies of the humans, which I define as compared to humans: Humans (...
8
votes
1answer
148 views

Orange Suns and Blue Jupiters

I am developing a fictional planetary system in which a large gas giant planet (slightly less than the mass of Saturn), has migrated into the habitable zone during the formational years of the system, ...
4
votes
1answer
85 views

Realistic spinal structure for large headed aliens?

The Grey Alien trope almost always features a disproportionately large head, which often comes in unusual shapes to boot. There's nothing wrong with the trope, large brains are cool but what baffles ...
26
votes
15answers
8k views

Justification of the trope that mining tools are tougher than military equipments

It seems to be a recurring idea in science fiction that some industrial tools, especially mining tools, are extremely sturdy and reliable to the point that in certain combat situations where ...
7
votes
3answers
458 views

Biological Coolant System for Massive Organisms

The larger an animal, the harder it is to cool down. Ignoring the problem of bone/muscle strength vs size/weight and saying an animal could get to outlandish sizes, would a second cardiovascular ...
4
votes
1answer
122 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'm even wondering whether one can produce it at all, without invoking ...
5
votes
3answers
140 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 ...
5
votes
1answer
106 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
vote
4answers
161 views

The biggest e-ink display in the world [closed]

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 ...
4
votes
4answers
441 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 ...
6
votes
4answers
687 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
100 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?
5
votes
4answers
461 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
216 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 ...
3
votes
3answers
261 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
votes
1answer
135 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
votes
1answer
131 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 ...
19
votes
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 ...

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