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For questions that ask if a given concept is consistent, or being used consistently, in the context of the referenced world rules. Answers should say yes or no, with supporting info. This tag should not be used with the science-based, hard-science, or science-fiction tags. Comparisons to the real world should use the science-based tag. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or hard-science tags.

2 votes
Accepted

What medical problems would doctors in a far future setting, plausibly have trouble dealing ...

The Limiting Factor Using medicine to set the boundaries is backwards. Begin with the body itself. The human body, the physical part of it anyway, is the product of a long evolutionary process. It ha …
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14 votes

How to make chocolate safe for Keidran? (Basically Dog-people)

Theobromine I just read your first linked question, and it seems that you are proposing the creation of some kind of genetically modified "chimeric" creature. Basically a hominid-canid combination. Pr …
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2 votes
Accepted

Would these centaurs be able to copulate with their human genitals?

On Average, MAYBE From a historical & biological perspective, the answer is very possibly yes, because these people exist in your world. You don't specify how these people actually reproduce, so the a …
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8 votes

How long can stubble get before it becomes clear it isn't made of human hair?

Right Idea Wrong Question? I don't think the length of the hair/fur matters so much as where it grows and how much. Hair and fur are the same thing. What differentiates people and cats or dogs is roug …
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3 votes

Helmet that shoots lasers?

Been There Done That Got the Laser Safety Goggles The system you describe has, in form if not in power, existed for decades. Ophthalmology surgeons sometimes use a head mounted laser where the power a …
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11 votes
Accepted

A genetic disease that makes humans unable to produce adrenaline

Yes! Not only realistic, but totally real! It's very rare, but there are a (literal) handful of sufferers of Polyglandualr Addisons Disease who do not produce adrenaline. One well known in the UK is J …
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7 votes

Why would a language have three rhotic phonemes?

Same Reason We Distinguish Other Phonemes Without knowing the specifics of your various R sounds, I think a case can be made for having three of them because they fit within the general scheme of cons …
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2 votes
Accepted

Seasonal Weather in a Forest with Polar Night

Polar Forests Forests once covered the Earth up to around 85 degrees of latitude. Judging from a map of present day Earth, there is no (or very little) land that far north, but obviously in the south, …
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2 votes

What would spiral-shaped lungs be good for?

Reality Check = FAIL! The first important consideration for this kind of breathing system, the conchoid lung, I believe, will be dead space. The other important consideration is that your system isn't …
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8 votes
Accepted

Square Cube Law and The Titan Whale

Totally Possible First, this is a fictional world, maybe a fantasy world, so we don't care so much about the square cubed law. The world is what it is; the creature is what it is; and it's our job to …
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8 votes

Could an Earth-like world use airships as heavy cargo haulers?

Plausible Airships are the dream of many a sci-fi / futurist / what-if worldbuilding project! I think you hit on the main points, materials, high enough tech, nuclear power source, all electrics. Just …
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3 votes

Is it feasible to have a nose prosthetic that doubles as a weapon?

Feasibility Check? YES! Technologically, as well as technically, this would be relatively simple to accomplish. The results probably will be rather less spectacular than you're hoping for. Device fail …
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8 votes

Would a "Hunting Horn" be feasible in a realistic world?

Battle Theremin As a musical instrument, the theremin is played by not touching it, by moving one's hands through the electrical fields generated by the instrument and the player's body. One could eas …
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3 votes

Would a planet of blind people (with some exceptions) be possible?

Um. In what way is "Yes, because eyes didn't evolve" not the answer? So, yeah! Perfectly plausible. In the described world, the animals that evolved into people never evolved the capacity to "see" in …
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4 votes

Is this creature's proportional head size feasible?

Head size isn't what strikes me as unfeasible here. It's how you think the spine meets the cranium. Anatomically, the body plan and head shape / orientation you've chosen is great for a bipedal creat …
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