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Q&A Primer (2004) - Does a time traveler's cell phone ring if both he and his other self exist at the same time?

In the movie Primer (2004), there are two main characters who travel back 24 hours in time using their time machine. When they arrive, both they and their past selves exist in this same town at the...

2 answers  ·  posted 5y ago by Hatefiend‭  ·  last activity 5y ago by Hatefiend‭

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Q&A Scientific explanation for summoned creatures

Throughout the ages, The Summoners were a prominent family of mages (but technology is magic here), who possess the ability to call forth creatures from cards. Of course they can only summon creatu...

3 answers  ·  posted 5y ago by Mephistopheles‭  ·  last activity 5y ago by Mephistopheles‭

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Q&A 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?

3 answers  ·  posted 5y ago by bigboi‭  ·  last activity 5y ago by bigboi‭

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Q&A Would this drone structure work?

I had an idea for a swarm of tiny drones, the smallest being as small as fairy flies at 0.15mm long, that could form into shapes and structures, even mimic the shapes of living creatures. They wou...

2 answers  ·  posted 5y ago by RandySavage‭  ·  last activity 5y ago by RandySavage‭

Question physics technology
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Q&A Physiology of a heart hijacking parasite?

This is a question regarding my little critters that hijack of their victim. By doing so they get direct access to a steady flow of nutrients through the bloodstream and get shelter with optimal te...

5 answers  ·  posted 5y ago by System‭  ·  last activity 5y ago by System‭

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Q&A What could prevent a thriving civilization from exploring neighboring lands/continents?

first question here (but not last I think). I'm currently thinking about ideas I have to form the base of a book I'll then write, and I need some insights/knowledge about exploration. I'm looking ...

14 answers  ·  posted 5y ago by OyuunKha‭  ·  last activity 5y ago by OyuunKha‭

Question exploration
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Q&A 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 real...

1 answer  ·  posted 5y ago by RotNDecay‭  ·  last activity 5y ago by RotNDecay‭

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Q&A 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, su...

2 answers  ·  posted 5y ago by NixonCranium‭  ·  last activity 5y ago by NixonCranium‭

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Q&A How to minimize the required energy for this level of monster activity?

Conventional monsters won't cut it. They whine and cry too much when fighting, they give up and go down too easily, mostly because of malnutrition since Jimmy, The Dark Lord, forgot he can't grow p...

2 answers  ·  posted 5y ago by Mephistopheles‭  ·  last activity 5y ago by Mephistopheles‭

Question creature-design
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Q&A Would tidal acceleration mean doom for this system?

So we have a Super Earth of ten Earth masses, just on the threshold, and it has three Mars sized moons (so a mass ratio of 100/3, more than Saturn Vs 3 Earths). They go 40,000km, 100,000km, 250,000...

3 answers  ·  posted 5y ago by Axion‭  ·  last activity 5y ago by Axion‭

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Q&A How long would it take for segregate human populations to speciate to a point where they could not interbreed?

Coming from an earlier asked question, I was wondering how long it would take (potentially a range) for two human populations that are separated from each other to speciate enough that they would n...

2 answers  ·  posted 5y ago by Andrew Su‭  ·  last activity 5y ago by Andrew Su‭

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Q&A 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 ...

2 answers  ·  posted 5y ago by AndyF‭  ·  last activity 5y ago by AndyF‭

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Q&A Base on the Moon for interplanetary travel

In my book which is set in the near future (some hundreds years from today) the mankind has mastered interplanetary travel. Although the travel to let's say Pluto is possible, it still takes severa...

2 answers  ·  posted 5y ago by Maxim Zabolotskikh‭  ·  last activity 5y ago by Maxim Zabolotskikh‭

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Q&A Human uses for megafauna besides food or traction?

Ancient Man feasted on megafauna. From mammoths to every variety of deer and flightless bird humans have made the most of large wildlife, to the point of tragic excess. So what happens when the ani...

17 answers  ·  posted 5y ago by NixonCranium‭  ·  last activity 5y ago by NixonCranium‭

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Q&A 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 o...

20 answers  ·  posted 5y ago by Hyfnae‭  ·  last activity 5y ago by Hyfnae‭

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Q&A 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 togeth...

4 answers  ·  posted 5y ago by Miguel NoTeimporta‭  ·  last activity 5y ago by Miguel NoTeimporta‭

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Q&A Proofing dragons against their acidic breath weapon 1/2: Smart Neutralizing Agent

So, dragons here use aqua regia (an acid that dissolves even gold) as their breath weapon. This acid is made up of the dragon's stomach acid and some nitric acid, stored in a separate organ. On to...

1 answer  ·  posted 5y ago by Mephistopheles‭  ·  last activity 5y ago by Mephistopheles‭

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Q&A 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...

1 answer  ·  posted 5y ago by NixonCranium‭  ·  last activity 5y ago by NixonCranium‭

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Q&A Is my fire resistant megafauna plausible?

For my project there is an environment with a very rapid fire regime due to the usual stuff like a dry seasonal climate and dragons. While most animals escape the flames by running, burrowing, or f...

1 answer  ·  posted 5y ago by NixonCranium‭  ·  last activity 5y ago by NixonCranium‭

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Q&A 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 th...

1 answer  ·  posted 5y ago by NixonCranium‭  ·  last activity 5y ago by NixonCranium‭

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Q&A Fictional Space Plague - Pandemic - Does this timeline make sense?

For a book that I'm working on I am plotting out various points in time to make sure my plot is following accordingly. I apologize in advance for the lengthy post. It is a fungus-like infection tha...

1 answer  ·  posted 5y ago by Nick Quillin‭  ·  last activity 5y ago by Nick Quillin‭

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Q&A How much tribute can a dragon get away with?

Okay, here's a classic situation: The countryside is plagued by a dragon, who demands tribute from the local city on the basis of them being in his territory. Now, the dragon here doesn't actuall...

4 answers  ·  posted 5y ago by Mephistopheles‭  ·  last activity 5y ago by Mephistopheles‭

Question dragons economy
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Q&A Hair as an olfactory organ: Feasible or dumb?

Within my setting, insects, due to a rather long (millions of years) and convoluted (gods suffering from empty nest syndrome) series of events, have evolved their exoskeletons into an endoskeleton ...

5 answers  ·  posted 5y ago by Seraphim‭  ·  last activity 5y ago by Seraphim‭

Question biology evolution
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Q&A Possibility of certain climates

I am trying to make three neighbouring countries with varying climates. One country needs to basically be Arizona (Especially like the Monument Valley area with the red sand and those iconic butte...

2 answers  ·  posted 5y ago by Blue Devil‭  ·  last activity 5y ago by Blue Devil‭

Question climate geography
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Q&A Generating breathable air on Europa?

Humans have colonized the subsurface oceans of Europa - building large cities embedded in the icy crust, hanging beneath it, and resting on the rocky seafloor. These colonists mine metals for const...

3 answers  ·  posted 5y ago by Zxyrra‭  ·  last activity 5y ago by Zxyrra‭