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Posts by Sheraff‭

23 posts
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Q&A How could dragons be explained without magic?

Dragons are a grand classic of fantasy. For this question, let's assume we're talking about the following stereotype: hatches from an ostrich-sized egg and can grow to mountain size if nothing l...

18 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 3y ago by celtschk‭

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Q&A Could inter-individual communication be based on DNA transfer?

There is this idea that we find in a few books, mainly The Swarm by Frank Schätzing and in the Ender Saga by Orson Scott Card, that some species could communicate via DNA exchange. Technically, y...

4 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 8y ago by Sheraff‭

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Rigorous Science What more than sentience do you need from a species for its intelligence to be recognizable by humans?

It's becoming obvious from how could humans recognize another species as sentient / intelligent that recognizing another species' intelligence is very complicated. There are no universal tests, no ...

6 answers  ·  posted 9y ago by Sheraff‭  ·  last activity 8y ago by Sheraff‭

Question intelligence
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Rigorous Science How could humans recognize another species as sentient / intelligent?

There is this fantasy in fiction that humans meet another species and figure out that it's intelligent. This usually happens with dragons, dolphins, aliens, collectively intelligent plancton... Bu...

10 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 8y ago by Sheraff‭

Question intelligence
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Q&A Is there a reason to believe that programming languages are going to converge?

On Earth today, even though most people speak some English, there is seemingly no reason to believe that future generation's main language will be the same in decades/centuries to come (i.e., we'll...

20 answers  ·  posted 9y ago by Sheraff‭  ·  last activity 8y ago by Sheraff‭

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Q&A How could climate be extremely localized?

What could be the reasons for climate to be so localized that it could rain in one street and not in the next, be extremely hot in a city and not in the next, have extremely narrow gusts of wind......

5 answers  ·  posted 9y ago by Sheraff‭  ·  last activity 9y ago by Sheraff‭

Question climate
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Q&A How soon will the first underwater cities be built?

Considering that the oceans are rising (and that humans don't seem too keen on doing anything about it) and that population is growing exponentially, is it plausible to imagine that in a not too di...

4 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 10y ago by Sheraff‭

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Q&A Could two planets be tidally locked to each other so close they share their atmosphere?

Could two planets be tidally locked to each other at such a small distance from one another that they share their atmosphere, and material is floating around between the two?

6 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 5y ago by Sheraff‭

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Q&A Is there any likely reason why personal DNA tinkering machines would become widespread?

Say we're in a world where it is possible to tinker with biology as easily as it is to tinker with programming nowadays. For feasibility, refer to How soon will tinkering with biology be as simple ...

5 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 5y ago by Sheraff‭

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Q&A How soon will tinkering with biology be as simple as programming is now?

Biotechnology is a big keyword in the industry right now, like computing was a bunch of years ago. Nowadays, anyone can pop up a terminal and start tinkering with their computer, program software, ...

5 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 10y ago by Sheraff‭

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Q&A How early was the Earth liveable for today's humans?

Say you were to drop a (bunch of) human(s) at some past era of our Earth. I'm assuming they might encounter a few problems such as the composition of the air not being breathable, the water being t...

3 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 9y ago by Sheraff‭

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Q&A Could knowing the state of the universe at time T allow to predict the state T+1?

Quantum physics today tells us that we may not predict outcomes with certainty. We perceive events as random. So is this old philosophical fantasy of an all knowing computer possible? Meaning that...

10 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 6y ago by Sheraff‭

Question computers
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Q&A If our universe was a simulation, what could a bug look like?

Let's assume, without revoking any of today's science, that the world is a simulation. What would a bug look like? I'm assuming that "the eiffel tower suddenly being bent at 45°" is rather unlik...

24 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 6y ago by Sheraff‭

Question physics computers
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Q&A What could cause rock formations (small stones, boulders, islands...) to levitate?

You see this in quite a bunch of movies / books (think avatar). What could be a reasoned physical explanation of such phenomenon? Would this explanation impact other things on a planet? Like most...

8 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 9y ago by Sheraff‭

Question biology physics
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Q&A Can an atmosphere englobe a planetary ring?

Would it be possible for the atmosphere of a planet to reach beyond its planetary ring so that earth-like biology could develop on some of the asteroids there? This question is mainly about whethe...

8 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 10y ago by Sheraff‭

Question biology planets
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Q&A How much technology for a ring-world to work?

There is this setup that I've seen a few times of a ring-shaped world where people live on the inner side. My question is: what is the minimum advancement of technology for such a thing to happen? ...

7 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 10y ago by Sheraff‭

Question space planets
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Q&A Is there a scientific explanation as to why aliens should look similar to us?

In almost all science-fiction stories that include alien races, said aliens are similar to humans in many ways: bipedal (and often humanoid), communicate with sounds coming out of a mouth, orient i...

14 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 6y ago by Sheraff‭

Question biology aliens
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Q&A What would be the evolutionary advantage for plants to be bioluminescent?

As fas as I know, there isn't a single plant on Earth that (naturally) produces any sort of luminescence. But it is seen in science-fiction worlds, especially Avatar. From an evolutionary point of...

2 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 8y ago by Sheraff‭

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Q&A What factors could lead to a narrow focus of technology?

In many SF stories (or fantasy if you replace science with magic), there is one technology that is hyper advanced in one specific field, like robotics in Real Humans or in Extant, but almost nothin...

5 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 9y ago by Sheraff‭

Question technology
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Q&A Are dragons cold or warm blooded?

My world is science-based with an earth-like biology. The dragons fly when they're young and then grow too heavy and can only glide if at all. They breathe fire by expelling gas and igniting it. Th...

6 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 7y ago by Sheraff‭

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Q&A Is there a scientifically sound faster-than-light travel system for a spaceship?

Recurringly in Sci-Fi spaceships manage to make it to lightspeed and above. Is there a scientifically plausible explanation of such capacity? How does it impact the spaceship's design and its passe...

4 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 10y ago by Sheraff‭

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Q&A What would a planet spinning fast enough to allow geostationary orbit near the surface look like?

From an answer to a previous question of mine: A planet spinning fast enough to allow geostationary orbit near the surface would result in odd side effects. Any object at rest on the equator w...

4 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 5y ago by Sheraff‭

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Q&A What would be the next technological step for a civilization after it has depleted all resources that allow for conventional technologies?

Imagine a world that reaches the end of its resources in silicon, petrol, coal, metals... everything that allows for conventional technology "” even before it has found a way over it (renewable ene...

7 answers  ·  posted 10y ago by Sheraff‭  ·  last activity 9y ago by Sheraff‭