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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.

3
votes
3answers
114 views

How likely is it that an interplanetary empire could exist in the future?

I'm building a world with an interplanetary empire (with an emperor as head-of-state), but I wonder how realistic it is for one to even exist. An empire, according to Google, is defined as: an ...
0
votes
3answers
93 views

Can a teleporter kill by teleporting saliva into the target's brain [on hold]

What about pieces of hair, phlegm, mucus, sweat, I want the teleporter to limit his powers only to his body. Even something as ridiculous like tears and faeces. I will even extend it to the food and ...
1
vote
2answers
43 views

Can I make the carbon cycle shorter - by metamorphosis from plant to animal and vice-versa

EDITED to address the above suggestion. See below. Most animals breathe in oxygen and breathe out carbon-dioxide. Most plants take in carbon-dioxide and release oxygen. Waste products from animals ...
3
votes
6answers
363 views

Can one individual be used to repopulate an entire species?

An evil scientist has engineered a plague that would kill anyone with an xy chromosome pair. This plague has systemicatically spread throughout the planet, killing all males within the population. All ...
5
votes
4answers
132 views

How can my dragons use their tongues to control their fire breathing?

Some background you may or may not skip I was daydreaming the other day about how tamed dragons whose magic was somehow harnessed as an energy source by humans could be used as a metaphor for nuclear ...
8
votes
2answers
291 views

Could an alien evolve to speak through its anus?

Humans can speak making precise movements of our tongues, teeth and vocal chords. I want a sentient creature whose carnivorous mouth-parts are completely unsuitable for speech to be able to ...
6
votes
2answers
167 views

How long would a flat Earth last?

As we all know the Earth is flat. Once upon a time a group of explorers set off with the idea of proving that the world was round and that there was a route to the spice islands the other way, but the ...
4
votes
1answer
59 views

Visual Cortex, superficial Brain Implant - Biological feasibility

In another question Everybody has a brain implant. What measures can a criminal take to escape justice? I assumed that a brain implant would be possible in the future for surveillance. In this ...
2
votes
2answers
130 views

Creating a scientist-only country in our world [on hold]

Wanting to innovate humanity, a multi-billionaire decided to start a new country. He was able to convince a country in Europe to sell a large portion of their land to him. He then constructed ...
0
votes
3answers
212 views

Zombie infection is worse than imagined: how can humanity survive?

This plague takes some of the worst from every zombie movie you might have seen and puts it together. It's airborne and can survive for a week in the air, and it is transmitted to humans through all ...
25
votes
7answers
5k views

Is intraspecies genetic incompatibility possible?

I'm creating a humanoid species, roughly based on humans. The difference is that not every opposite sex couple of fertile age could produce offspring. The premise of my story is based of some men ...
-2
votes
0answers
49 views

What event could wipe out all of the life of earth? [closed]

I read that the leaders of Countries around the world are fearing a third world war because it would mean that all life on earth would end because nuclear weapons would be used. Therefore, nuclear ...
40
votes
5answers
6k views

Could you do acrobatics and long-distance running in an ankle-length dress?

So this should probably belong on clothes.stackexchange.com, if there were such a thing, but here I am with a question that I hope is not too complicated or specific for this site. My situation: I've ...
6
votes
7answers
324 views

Would this scheme be profitable?

In the not so distant 2040s the world is heading towards a devastating energy crisis, climate change is slowly beginning to take its toll, and unemployment is on the rise globally. But one corporation ...
8
votes
7answers
344 views

Technologically advanced civilization still using melee armor and weapons

Similar idea to this post, why would an advanced civilization able to create AI/ droids ranging from 'hardshell' (I-Robot (movie) or C3P0) to 'soft' (Bishop (Aliens)) still have use for melee combat, ...
3
votes
3answers
143 views

Best natural armor possible for a fantasy humanoid

In my fantasy world a scholar magician creates a sub-specie of warriors with an optimal natural armor against medieval technology weapons. What would it be like? How can I make it as flexible as a ...
-1
votes
1answer
87 views

What are the side effects to an ability that let's you experience the senses from a memory? [closed]

The ability gives you a photographic memory and let's you perfectly recall any event in his life, and experience all the senses (touch, vision, smell, etc.) from a memory by firing the nerves or ...
8
votes
1answer
174 views

How can professional leagues implement gene enchancement into sports while keeping a balance among athletes?

The year is 2050, and genetic enchancement is now commonplace in society. People can currently opt to improve their bodies through the form of gene packages. These are geared towards increasing ...
11
votes
18answers
3k views

A huge transparent wall permanently separates two civilisations - what can it be made of?

I'd like two medieval societies to be separated from one another by a huge vertical wall. The wall is so high that no-one has succeeded in shooting an arrow (or anything else) over it. It disappears ...
1
vote
0answers
65 views

Creating a world run by corporations [closed]

Recently, CDPR Projekt Red released a trailer featuring a dystopian cyberpunk world more or less run by corporations. To give an example, the most powerful (and expensive) medical services group will ...
17
votes
7answers
6k views

Is a solar system around a black hole possible?

Is it possible for there to be a "solar system" of sorts with a black hole and a few suns orbiting around it? Could that system be stable and (if so) would it be possible for some civilization(s) to ...
2
votes
3answers
195 views

A Wider Range of Human Skin Color — But Would The Transition Between Shades Be Natural? [closed]

Long ago, it was thought that the peoples of Europe developed white skin as a means of adapting to the low-level lighting of ice age Europe (an assumption that disregarded why the people of Asia don't ...
10
votes
9answers
340 views
+50

Standardized building materials across a Roman style empire

I am working on an empire that exists in my world. I want to know if it makes sense for said empire to standardize the materials they use for construction across the empire. In the heart of the ...
7
votes
4answers
252 views

Anatomically correct Panotti

Panotti so called from the Greek words πᾶν and οὖς for "all ears", were a mythical race of people, described as possessing large ears that covered their entire bodies. In the Natural History, Pliny ...
19
votes
6answers
5k views

Can mountains ever transition abruptly to plains?

I'm trying to write a story where the main characters discover the wreckage of a spaceship in the fields that border their town to the west. To the east, there's the end of a large mountain range. ...
28
votes
7answers
11k views

Is it possible to perform surgery on your own spine? [closed]

My character has to perform surgery on herself and by herself. She has all the surgery tools and a screen to watch what she is doing. She is in a clean stable environment and there is no risk of ...
0
votes
1answer
122 views

How can I create a book made entirely of human skin? [duplicate]

I am Darth obamaresh, darkest lord in the history of darklords. After a lifetime of wickedness and evil deeds, I have decided to preserve my evil discovered spells in a tome. This book is 666 pages ...
4
votes
3answers
114 views

What reason would explain having to store a asteroid inside of a ship [closed]

The Dysnomia is a top of the line mining ship built by the Helix corporation. Dysnomia mines asteroids and comets by finding and capturing them and then storing them inside her massive cargo hold. ...
6
votes
3answers
505 views

Why would unicorns only let virgins ride them, and bicorns refuse to let virgins ride them? [closed]

How to explain the fact that unicorns only let virgins ride them? Why does the unicorn even care if the rider is a virgin or not? And why do bicorns do exactly the opposite? Bicorns won't let ...
7
votes
5answers
224 views

Is this sudden global cooling scenario plausible?

In the year 2071 the Dysnomia incident happened. The Dysnomia (a mining ship) suffered a catastrophic failure and violently exploded sending its payload, an aged comet, hurtling towards earth. The ...
4
votes
2answers
79 views

Planet Blob - variable gravity

On the planet Blob there is an unusual phenomenon. It is known to emanate from the planet's core but 2018-level scientists have no understanding of it. The phenomenon Gravity isn't constant. It ...
1
vote
4answers
237 views

Could cord-cut be a real martial arts technique?

This is a technique from the anime Baki the grappler, which can be checked here. The "Cord-Cut" name refers to the countless "cords" that makes human body. The cords includes blood vessels, lymph ...
9
votes
6answers
238 views

How could an agricultural revolution develop in medieval societies inhabiting a tropical environment work?

I'm trying to work on a chapter in my lore but I'm stumped on how agricultural developments could work in tropical settings, and real world examples so far mostly include temperate places, I.e. ...
0
votes
2answers
114 views

What is the most pratical/feasible method to replace the human digestion apparatus?

Objective: Replace the human digestion apparatus (stomach, guts etc) From my basic understanding the human body needs food, because it needs ATP (energy unit, some kind of sugar(?)) or you could say ...
20
votes
13answers
4k views

Rain powered transport

Rain-powered transport The plain of Soggi experiences a constant rainfall. Can a rain powered vehicle be built according to the following conditions? The plain of Soggi experiences a constant ...
-2
votes
1answer
114 views

Seeing only in IR: Is my hypothesis correct? [closed]

I watched Kyle's Because Science video on The Predator and 1 thing he talked about was IR vision. Here was his argument: If you can see nothing but infrared light, you can only see the ambient ...
11
votes
2answers
285 views

Weather in a 5 mile deep crater

I’ve done a fair bit of research to come up with this scenario. I hope it’s not “too broad” to ask for a reality check. Have I overlooked anything? Does it all sound plausible? My world takes place ...
6
votes
3answers
413 views

Why would a creature be immune to heavy metals?

I need a creature that can survive in environments with elements like lead and mercury in many nutrition sources, and in some places making up part of the atmosphere. I was thinking maybe it could ...
25
votes
17answers
5k views

How can I encourage responsible business practices among necromancers?

I am DONNA TRUMPET, the first female President of the United states reborn, and one of the greatest leaders in world history. I have managed to recently pass the 103rd amendment to our Constitution ...
9
votes
4answers
320 views

Anatomically correct Sea Boar

Wild boars are well known for their large, bulky body, their aggressivity and their tusks. They are animals from which a predator would gladly stay away if some easier prey is available. And, last ...
3
votes
2answers
96 views

Moons changing their rotational periods

There is a planetary system with a big planet and two moons, Luna and Laltre orbiting around it. Luna has a pretty similar orbiting (1 earth-day) and rotating period (slightly less than 1 earth-day). ...
6
votes
6answers
380 views

How can resurrecting dead employees be made profitable for a company?

Doanaldin Trumpet, the first female president of the Corporate States of America, has passed a revolutionary bill called the D.E.D (despicable exploitation of the dead) act. This allows employers ...
7
votes
1answer
197 views

Can fiber optic cables be used to pipe sunlight into an underground bunker for growing plants?

One major problem with living underground is you lose all of that wonderful energy provided by the sun. This energy is useful for many things including growing plants for food. A window is effectively ...
7
votes
8answers
1k views

Macro-life, colonisation or continuation?

Larry Niven defines a macro-life civilisation as one that lives in interstellar spacecraft, independent of planetary resources and culture, full time and by implication keeps moving. This could mean ...
42
votes
14answers
8k views

Can the Aztec Empire learn and reuse Conquistador technology?

In this alternate history, Christopher Columbus makes landfall in Central America, after passing south of Florida and sailing through the Gulf of Mexico, arriving right on the doorstep of the Aztec ...
7
votes
4answers
340 views

What would it take to create insulin in the post-apocalypse?

In post-apocalypse fiction, diabetics, if they are ever even mentioned, are typically portrayed as utterly, irrevocably screwed. In fact there was a pretty cynical example in Dies The Fire (a book ...
-1
votes
1answer
135 views

Disposable harmonica gun cartridge?

Would it be possible to make a harmonica gun in which the "magazine" is lightweight, easily made, and disposable? Preferably with the technology of the 1800s or earlier.
0
votes
2answers
140 views

How to steal money if you have a quantum computer? [closed]

I'm writing about whistle blower who discovers that his employer, huge profitable corporation is just a front operation. All their diverse products and services are a sham, and the company is ...
2
votes
4answers
183 views

Countermeasures against immortality [closed]

If people are not dying from decrepitude, if people have an infinite life expectancy, if all humans become immortal. What would a government do to prevent overpopulation? What would/should a ...
31
votes
13answers
9k views

Could Finger-Fencing be Fatal?

At the King's court, duels are sometimes used as a way of settling disputes. However to avoid too many injuries the king has decreed that combatants must use only one finger as a weapon. Any finger ...