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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4
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3answers
52 views

Is it plausible for a certain area of a continent to be/remain/become uninhabited for a long period of time?

If is plausible, what are the most reasonable factors to bring to bear? I have a large continent where a number of races/cultures are present in the present day, but I want the one in the south to ...
6
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3answers
67 views

Could anti-matter virtual particles be theoretically harvested from the quantum flux?

I was wondering if a vacuum created within a particular material in the shape of sphere could be used to harvest anti-matter from virtual particles? Within the vacuum, theoretically, virtual ...
4
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2answers
153 views

Would fantasy dwarves be able to invent and/or manufacture the radio?

In my fantasy setting there are dwarves, inspired by the "stereotypes" and traits presented in Dwarf Fortress, and thus, partially inspired by the LotR lore. It has the implications that dwarves use ...
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6answers
2k views

Would a spacecraft carry arc welding supplies?

Okay, I'm researching for a scene in my science fiction story. A character is in a spacecraft and needing to open a locked hatchway. It's locked electronically by an unknown code. All methods of ...
6
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1answer
61 views

How to calculate the average temperature of the hemispheres of a planet tidally locked to its star?

I have a planet orbiting a red dwarf and, as expected, it is tidally locked to its star. I know that these planets will have a very significant temperature difference between the diurnal and nocturnal ...
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15answers
5k views

What plausible reasons why people forget they didn't originally live on this new planet?

It's a major step forward for humanity when they can finally live on a new planet. Maybe they went there out of desperation to survive, or maybe they simply want to explore. Either way, they suddenly ...
3
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2answers
258 views

Consequences of a creature with exposed musculature

In the video game Dino Crisis 3, a recurring boss that the player fights called the Australis (a bio-engineered human-Tyrannosaurus Rex hybrid) that has skin exposing the muscles of its body. An in-...
4
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1answer
52 views

Can an Insect's Pheromones Be Visible?

In my story, there is a type of bee that releases a pheromone during mating season that is visible at night in brightly lit areas. This is similar to how you can see rain more easily at night if you ...
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4answers
63 views

How Would an Anti-Gravity Gun Function

The Question How would a gun, that uses anti-gravity as propellant, work? Is it even practical? Background I have been toying around with the idea of a gun that uses anti-gravity to shoot off heavy,...
6
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3answers
128 views

Space Combat Depiction 1: Laser Pew-Pew

After reading up on space warfare for a while now, I'd like show how I imagine a realistic depiction of lasers in space combat. This question is more about the general perception of lasers the ...
4
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4answers
1k views

An insect-mammal crossbreed: the myrmecoleon

A myrmecoleon is a creature with the upper torso of a lion and the rest of the body is like an ant. While it's not probable for a true insect-mammal hybrid to happen naturally, are there any ...
2
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1answer
69 views

How to form a huge natural plateau with a slope?

I need a huge natural plateau to form but with a slope. There can be some variation, a few hills or even mountains here and there, but the ground needs to be mostly gently sloping north to south. It ...
11
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1answer
1k views

Anatomically Correct Slimes

Slimes are a common monster we often see in games such as Minecraft, Terraria and Slime Rancher, but it is never explained how such an animal can exist. How could the body of such an animal even exist ...
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6answers
3k views

Is making bullets from scratch possible?

In my world a a several members of the US Armed Forces get transported to a medieval world. They have only a limited amount of resources and they must find a way to replenish their supplies. ...
0
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2answers
92 views

Can a turbine mechanism work to generate energy from a lightsaber/beam saber? [on hold]

The turbine mechanism is surrounding a lightsaber or beamsaber like a sheath or scabbard on a sword, or like a cylinder tube. The turbine is inside the sheath and looks like a blade ring facing the ...
10
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9answers
644 views

Is a Language with Two Phonemes Feasible?

In one of my stories, I have a race that communicates using only two sounds: "O" and "U". This can be strung together like this: ...
7
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5answers
498 views

Is it possible for a country to develop the equivalent of a Second Industrial Revolution while under a war of attrition?

I'm developing a setting that has majoritarily experienced a First Industrial Revolution after a period of peace, preceded by a period of warfare sort of equivalent to the Napoleonic wars. Now I am ...
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18answers
4k views

Cultural reasons to prevent the industrial revolution

In a world similar to Earth, how can I realistically prevent the industrial revolution from occurring as an event? I need it to be held off for at least 200 years. It has to be a ...
34
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7answers
5k views

Can a radioactive moon affect life on a planet?

This question is meant as a reality check on this answer to The land grows evil and corrupted ... but why? Radioactive moon in a nearly geosynchronous orbit. It slowly kills or alters all life ...
2
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4answers
145 views

If North America and Latin America unified into one country, how would the highway system work?

Canada, the US, and Mexico all have pretty nice highways. However, that isn’t the case with most Latin America countries that don’t even have paved highways. Would the supercountry use all of its ...
4
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6answers
266 views

Could there be a planet where no electrical device works but that it can house life?

Far, far away from the Earth, there is a planet. A planet full of life. Where an intelligent species reign above all. But they haven't mastered the spirit of the thunder, and they will never. This ...
13
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7answers
664 views

What are the minimal questions I need to answer for Muslims and Vikings to have discovered America?

I want to start writing alternate history story, set in the 'Wild West' where there are factions of Muslims and non-Muslims vying for territory and resources. I need to have a reality check on this ...
11
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6answers
261 views

How to dry an ocean planet and turn it into a salty desert?

I have a planet covered with a large shallow ocean, which extends over most of its surface. I want to turn this planet into a great desert, specifically a salty desert (the salts of this desert are a ...
3
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3answers
146 views

Plausibility of only two cultures/peoples existing on one planet?

On Earth, it's virtually impossible to enumerate all the different cultures and ethnicities that exist, but if you hypothetically categorized every people as occurring with a language, that's roughly ...
20
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3answers
998 views

Scaling Up Internal Mass Drivers?

Internal mass drivers are a potentially useful space drive, due to the ready availability of reaction mass (you can use anything from spare parts to literal dirt as a propellant, assuming you have a ...
23
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15answers
8k views

A steel-cutting sword?

So within my world there exists a faction of monks on a secluded mountain whose scientific and philosophical knowledge outstrips the outside medieval world. And with these monks being famous more for ...
23
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10answers
1k views

Viability of Fixed-Wing Biological Flying Creatures?

How plausible are naturally-evolved, biological, fixed-wing flying creatures? Could such a creature plausibly evolve in Earth-like conditions? If so, what method would it be most likely to use for ...
22
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13answers
4k views

Ways to hide an elven city

How could a large (10,000-20,000 people) elven city hide itself from a person wandering through? These elves can bend plants to their will and stimulate plant growth by singing, so they could live in ...
32
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12answers
8k views

Is It Possible to Make a Computer Virus That Acts as an Anti-virus?

After receiving answers to this question, I now know that viruses cannot be written in machine code in such a way that they can universally infect all kinds of systems. Every machine has a unique set ...
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14answers
3k views

What is the most REALISTIC cause of a worldwide catastrophe/apocalypse in the near future? (next ~100 years) [on hold]

Trying to figure out a post-apocalyptic scenario and looking to stay somewhat within the realm of possibility. Given how tech levels MIGHT be in a 50 years, what would you say would be the most likely ...
10
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3answers
749 views

Could a solar system exist inside of a nebula which is made of breathable gases?

Far, far away from the Earth, there is a nebula. An enormous cloud made of 78% nitrogen, 20% oxygen and 2% other non-lethal materials. These gases swirl around a star, and the pressure around it is ...
3
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2answers
154 views

Surgically interconnecting two people’s intestines

In my fictional dictatorship, a high-profile prisoner needs to be observed at all costs lest he harms himself or attempts to flee. Thus, the Ministry of State Security has devised a method of making ...
24
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14answers
7k views

A Society Built Around Theft?

Would it be possible for a stable society to be built around the concept of theft as a positive action, and thievery as a virtue, while still having theft be technically illegal, but having the ...
4
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4answers
185 views

Fantasy Air-Ship Design

I am a little obsessed with the 'Planetary Romance' genre - Edgar Rice Burroughs etc - and especially the idea of a setting in which interplanetary travel is in craft that resemble ocean going vessels....
4
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4answers
138 views

Could two separate creatures' health, or life, be dependent on each other?

This is a question for an alien species. Is there anyway to scientifically justify having two separate beings/creatures that depend on each other for life? In other words, two separate bodies that ...
4
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2answers
173 views

Can Superspeed Cause Illusions?

My story involves people with supernatural abilities. I want to create a character that has classic superspeed like the comic book superhero The Flash, but I want my character to only have realistic ...
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0answers
60 views

How to stop a voodoo doll spell [closed]

I have been in a relationship with a woman for 15 years, I found out that she was seeing other men and women as well. I tried to leave her but I cannot, then she showed me a wax voodoo doll that she ...
8
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2answers
1k views

Anatomically Correct Baku

In the mythological stories of the Baku, they eat the nightmares of those who call upon it, but if not satisfied they will eat the hopes and dreams of their summoners. Since the visual portion of an ...
2
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2answers
255 views

Handheld Speargun used out of water for manhunting

Can I have a character make use of a handheld speargun in a postapocalyptic setting to shoot people and pull them back (or at least retain them) with the gun's cord? I came across some criteria/...
11
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9answers
2k views

Historical experience as a guide to warship design?

I've been working on designs for some model starships, in particular warships. My working assumption has been that the designs and materials for these ships will reflect the way that the civilisation ...
4
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2answers
98 views

How would a company take over a secret/private city realistically?

I've been trying to rewrite a novel I wrote in high school, but this time actually have it make (some) sense. Basically there's a decently sized company in the novel that takes over a private/secret ...
13
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4answers
3k views

Weapons and armor from chitin

I want to understand how weaponry and armor might be made from the chitin of giant insects, and how well it might work. Background In a fantasy world I'm working on, a significant population lives ...
5
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12answers
3k views

Can a successful economy exist without renting stuff?

Modern capitalism is considered as the most successful form of economy (and it clearly works better than, say, communism), but it too has its flaws. One of the most glaring ones (in my opinion) is the ...
5
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5answers
2k views

How to “prove” a supernatural entity exists?

I know the innate contradiction present here: one cannot "prove" the supernatural exists, for a variety of reasons. But for the sake of argument I want you to consider this: A person is convinced ...
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4answers
186 views

How realistic would it be for humans to get stuck to a wall through honey?

I'm devising a story in which a group of hacker bees abbreviated hbeeze had their hacking attempts foiled by a bunch of cyber honeypots created by humans. The hbeeze being disappointed in this failure ...
23
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14answers
3k views

On the feasibility of space battleships

We all know and presumably love enormous space battles with vast battleships doing minimal damage to each other for hours before being blown up by a single fighter. On Earth battleships became big ...
1
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7answers
926 views

Is It Possible for a Universally-Executable Virus to be Written in Binary?

In my world, there was a man that wrote a virus in binary code - which in turn infects every computer-based system in the world, as long as it is connected to the internet. Is this even possible? ...
12
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12answers
4k views

Could a small private island protect its sovereignty?

Imagine the modern day world where an eccentric billionaire (plus a small group of others) has decided to declare their private island as their own country. (lets say the island is about 1 square ...
6
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1answer
104 views

Can a Planet's Electromagnetic Field Be Strong Enough for Wireless Electricity (Induction)?

Wikipedia states: "Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field." This one sentence ...
32
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14answers
7k views

How to catch creatures that can predict the next few minutes?

These creatures have the ability to see all possible outcomes within their vicinity within the next 30 minutes or so. This is not the same as foreknowledge that they have no choice over. Even if ...