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Posts tagged reality-check

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2.3k posts
Tag Only Tag + Children
72%
+6 −1
Why would merfolk have hair?

21 answers  ·  last activity 4 months ago by ‭PinoBatch‭

reality-check evolution creature-design merfolk hair
66%
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Are geographically typed planets realistic?

5 answers  ·  last activity 4 months ago by ‭Canina‭

reality-check planets geography
60%
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Is this planet's atmosphere stable and reasonable, and anything to keep in mind for lifeforms living in it?

3 answers  ·  last activity 4 months ago by ‭Canina‭

atmosphere reality-check
40%
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Earth where all of Equidae went extinct via Ice Age... - Effects

3 answers  ·  last activity 4 months ago by ‭PinoBatch‭

reality-check science-based fauna
50%
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Anatomically Correct Mokèlé-mbèmbé

3 answers  ·  last activity 5 months ago by ‭Canina‭

biology reality-check evolution science-based creature-design
60%
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Anatomically Correct Vanara

2 answers  ·  last activity 5 months ago by ‭TGCF ‭

reality-check evolution science-based creature-design fantasy-races
60%
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Could my leviathans exist?

1 answer  ·  last activity 5 months ago by ‭icewar1908‭

biology reality-check evolution science-based creature-design
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Exclusively underground creature experiencing sun-light for the first-time

3 answers  ·  last activity 5 months ago by ‭Prahara‭

biology reality-check xenobiology
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If the Earth would break apart, how likely would the large debris stay in orbit?

2 answers  ·  last activity 5 months ago by ‭SKKennell‭

reality-check gravity apocalypse post-apocalypse earth science-fiction alternate-earth
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Can a galaxy be formed from a black hole?

3 answers  ·  last activity 5 months ago by ‭01e5Dk‭

space reality-check black-holes galactic
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Could a Monotreme Griffin exist?

1 answer  ·  last activity 5 months ago by ‭icewar1908‭

biology reality-check evolution creature-design mythical-creatures
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Alternative evolution mechanisms using cell fusion

1 answer  ·  last activity 5 months ago by ‭LDR‭

biology reality-check evolution
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anatomy or musculature to achieve full rotate jaw?

7 answers  ·  last activity 5 months ago by ‭Li Jun‭

biology reality-check science-based creature-design anatomy
60%
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biologically or anatomically is there a problem with this type of double mouth or jaws?

5 answers  ·  last activity 5 months ago by ‭Li Jun‭

biology reality-check science-based creature-design anatomy
50%
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What would encourage multiple animal species to evolve human features simultaneously?

8 answers  ·  last activity 5 months ago by ‭Lizardsaurus‭

reality-check evolution genetic-engineering engineering ecology far-future future
50%
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Are these traits for my planet mathematically accurate? Could it support life?

2 answers  ·  last activity 5 months ago by ‭Praearcturus‭

reality-check planets science-based habitability
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Could we build a roof over the Grand Canyon?

2 answers  ·  last activity 5 months ago by ‭Appleguysnake‭

reality-check science-based technology engineering
50%
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Proportions of a giant humanoid?

2 answers  ·  last activity 5 months ago by ‭Praearcturus‭

biology reality-check science-based anatomy humanoid
50%
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Feasibility of six inch space-faring aliens

3 answers  ·  last activity 5 months ago by ‭RotNDecay‭

biology reality-check science-based
50%
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Could time travelers go back in time and help teach homonids how to build a civilization?

1 answer  ·  last activity 5 months ago by ‭Pierre ‭

reality-check evolution science-based
50%
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How large could an aquatic humanoid get?

1 answer  ·  last activity 5 months ago by ‭Praearcturus‭

reality-check science-based creature-design sea sea-creatures humanoid
50%
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Alcubierre Drive without FTL?

6 answers  ·  last activity 5 months ago by ‭Tim McClelland‭

space travel reality-check space-travel
50%
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Cylindrical radiators on spacecraft?

2 answers  ·  last activity 5 months ago by ‭zertofi‭

space travel reality-check spaceships space-travel ships science-fiction
50%
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How feasible would non-jawed vertebrates be on land?

2 answers  ·  last activity 5 months ago by ‭syrus2010‭

reality-check evolution science-based creature-design
50%
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With dunkle-like Jaws, how long could the neck be?

3 answers  ·  last activity 5 months ago by ‭ProjectApex‭

biology reality-check evolution aliens xenobiology
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Can one (re)learn empathy if they have the necessary structures?

2 answers  ·  last activity 5 months ago by ‭ProjectApex‭

reality-check psychology
50%
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Rifle and Bullet Technology

3 answers  ·  last activity 5 months ago by ‭Csraves ‭

reality-check science-based technological-development fire firearms
50%
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A clothing material or other method to slow free-fall descent down walls

23 answers  ·  last activity 5 months ago by ‭Delirium‭

reality-check physics technology materials science-fiction
50%
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How Would I Make an Oceanless World Feasible?

8 answers  ·  last activity 5 months ago by ‭The Weasel Sagas‭

climate weather reality-check planets habitability
50%
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Superfluid lifeform

1 answer  ·  last activity 5 months ago by ‭Nierninwa‭

biology reality-check physics astrophysics
50%
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Are 'tree waterfalls' possible?

15 answers  ·  last activity 6 months ago by ‭Vigilant‭

reality-check geography water
50%
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Is it possible to retrofit white blood cells with neural network technology to fight infection?

2 answers  ·  last activity 6 months ago by ‭user6760‭

biology reality-check technology nanotechnology intelligence artificial-intelligence
50%
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Could a metal be indefinitely stained by human blood?

2 answers  ·  last activity 6 months ago by ‭Felix Icarus‭

reality-check science-based metals
50%
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Can mercury compounds be used in chemosynthesis?

1 answer  ·  last activity 6 months ago by ‭pg4919‭

biology reality-check creature-design chemistry biochemistry
50%
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Is it possible for a moon to stay on the same side of its planet relative to the sun?

3 answers  ·  last activity 6 months ago by ‭LonelyCryptid‭

earth-like reality-check moons orbital-mechanics earth gas-giants gas
50%
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Space station scenario feasibility

4 answers  ·  last activity 6 months ago by ‭Prahara‭

space reality-check space-constructs
50%
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Space-based black hole weapon effects

6 answers  ·  last activity 6 months ago by ‭Demigan‭

reality-check science-based black-holes weapon-mass-destruction science-fiction
50%
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Infinite endurance

6 answers  ·  last activity 6 months ago by ‭Kyu‭

reality-check science-based creature-design
50%
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How can a powerful acidic substance not break down inorganic material?

3 answers  ·  last activity 6 months ago by ‭Incognito‭

biology reality-check
50%
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Are large meteor craters possible with the survival of most human society?

1 answer  ·  last activity 6 months ago by ‭Cascader‭

reality-check science-based natural-disasters meteor
50%
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Inducing hallucinations to attract prey

2 answers  ·  last activity 6 months ago by ‭Kyu‭

reality-check science-based creature-design
50%
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Temperatures on an Earth with a week-long rotational period

2 answers  ·  last activity 6 months ago by ‭Ryan Williamson‭

climate reality-check planets
50%
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What will the abdominal muscles of non-primate humanoids look like?

2 answers  ·  last activity 6 months ago by ‭Pierre ‭

biology reality-check evolution science-based
50%
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Is my planet realistic?

4 answers  ·  last activity 6 months ago by ‭LonelyCryptid‭

reality-check planets solar-system
50%
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Creature that increases its own lifespan by killing other animals

1 answer  ·  last activity 6 months ago by ‭Kay‭

reality-check creature-design immortality anatomy anatomically-correct
50%
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Net shift of humans towards introversion?

2 answers  ·  last activity 6 months ago by ‭subdermatoglyphic‭

reality-check society science-based psychology humans
50%
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How much energy would be needed for a sentient plant species

1 answer  ·  last activity 6 months ago by ‭RotNDecay‭

reality-check science-based flora
50%
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Would it be possible to build numerous spaceships that could transport 10 million people in the late 2100's?

2 answers  ·  last activity 6 months ago by ‭Niobium_Sage‭

space travel reality-check spaceships space-travel food space-constructs ships
50%
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Could a "multicellular" virus exist?

6 answers  ·  last activity 6 months ago by ‭Topcode‭

reality-check science-based fauna creature-design viruses
50%
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Meteorological consequences of walls reaching into the sky, enclosing a large area

1 answer  ·  last activity 6 months ago by ‭Mark Gardner‭

weather reality-check science-based megastructures gas
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