Questions tagged [far-future]

For questions of Earth\humans that extrapolate beyond available data: hundreds of years at least, thousands commonly, millions preferably.

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4
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3answers
81 views

How to build a star-sized humanoid superorganism? [closed]

For whatever reason, humans in the far future want to build a star-scale humanoid creature. This massive lifeform would completely envelop a star in its chest area, turning the star into its "...
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18answers
5k views

What are plausible faster than light methods for a far advanced civilization that aren't a warp drive

Hopefully the title sums it up well, but I'm looking for potential faster than light travel (hoping for real or pseudo-real science here, as much as possible) that doesn't involve a warp drive, which ...
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1answer
156 views

Could a colony on Neptune work?

My book is set far, far into the future, in a widely settled solar system. An expedition is sent to Neptune, and the expeditioners find out that there are massive cave systems reaching deep into ...
35
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16answers
8k views

Signs of wealth in a world where private planet ownership is common

In my far-future world, owning a planet or moon is as common as owning a house. People usually have a large house, with an adjacent farm for their own sustenance that is usually tended by robots. ...
2
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6answers
158 views

What is the quickest way to kill someone using nanobots?

Assume a distant future where all humans have nanobots in their bloodstream that keep them alive indefinitely. Now let's say there is a way to override those nanobots so that they can instantly be ...
4
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2answers
94 views

Alternate power for projectile weapons [duplicate]

I am working on a series set a few hundred years in the future where fusion power is common and starships roam between planets. I am trying to think of a way to power small Arms weapons and keep them ...
4
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7answers
1k views

Would a fully automated future society where everything is owned by the state still require taxes?

In this future society: All of Earth's resources can be accessed since the planet has one world government. All services and goods are owned, created, and distributed by the state. Every step of ...
7
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8answers
449 views

What would encourage multiple animal species to evolve human features simultaneously?

The setting is fifty-five million years in the future on Earth, with multiple humanoid species that have different ancestors, but share similar characteristics. Their ancestors would be animals that ...
17
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9answers
5k views

Is a modern dark age possible?

For context, I'm considering a story similar to the Netfilx TV show The 100 in which humanity has to recolonize the Earth following a major extinction-level event. I'm aiming for the society they ...
2
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2answers
110 views

How would evolution be influenced by the remnants of humanities servant robots?

So let me explain the frame/world first, I actually think all of it is relevant as some details would probably have quite the impact on the outcome. I was hesitant to post the question as it's quite a ...
3
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1answer
94 views

How would hands or hand-like appendages evolve from ray-finned fishes?

Tetrapods evolved fingers from the inner-bones of the fins of lobe-finned fish, could hands ever evolve from ray finned fishes if they were to become fully terrestrial, from a mud skipper ancestor?
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4answers
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Is it possible to maintain a gun functioning after thousands of years?

The gun in question is a normal, reliable and non-specialized .45 revolver. The idealized character is the last descendant of a lineage of carriers of this gun, considered by them legendary. Is it ...
7
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2answers
325 views

How soon does the Earth's surface re-solidify after the red-giant Sun is replaced with a different star?

(Note: This is a follow-up question to my previous one: Moved into further orbits to protect them, how much damage do Earth and Moon take when the Sun expands?) Thanks to clever stellar engineering ...
4
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1answer
224 views

Moved into further orbits to protect them, how much damage do Earth and Moon take when the Sun expands?

Short version A far future catastrophe burns/melts away large chunks of the Earth and Moon. For reasons related to my story's fantasy elements, the remains of the Moon have about one fifth their ...
7
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4answers
236 views

Mind Uploading and Childbirth

In a world where every human mind has been uploaded, and no organic humans remain, can we still produce offspring? In a worldbuilding project I'm dabbling with, there are many people uploading their ...
3
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4answers
226 views

Why would a technologically advance space-faring civilization still use physical currency?

In this world human civilization has reached the stars and now spans across multiple galaxies. Technological advancements such as neural implants, FTL travel, and FTL internet access are ubiquitous ...
6
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5answers
376 views

What species has the most chance of becoming the next civilised species? [duplicate]

I'm considering creating a world which take place on earth after all humans are dead/gone (we don't care actually). In this situation another/some other species develop enough to be a civilization. ...
7
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2answers
521 views

How much energy does a bee/micro robot need per second of flight?

In my scifi setting small utility robot swarms are used for many purposes. I'm currently trying to estimate how much energy such a swarm would need to operate. Since biology, robotics and ...
1
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1answer
88 views

Alien preservation plan for Earth and human evolution [closed]

I've got an idea and would ask for you evolution enthusiasts: what if humanity could be forced to not travel around the earth and be forced to stay by some alien culture in their home habitats (...
6
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3answers
1k views

Cauterizing a wound with metal?

I am wondering if scientifically it is possible to cauterize a wound using molten metal. I was thinking of a character whose wounds and scars were healed with metal, leaving her with spots and ...
8
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3answers
437 views

If an Alcubierre Drive is possible, can you communicate FTL without a vessel?

Assume that an Alcubierre drive is feasible. In fact, assume that one has been built. A superluminal starship can propel itself through space by distorting space in front of it and behind it. However, ...
3
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1answer
197 views

Dystopian Future | Moon Destroyed What Would Our World Look Like in 500 years? [duplicate]

This question came to me after reading this question on the Astronomy Page, and having a length discussion with colleagues about the 2002 movie "The Time Machine". As a result I am looking for hard-...
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2answers
209 views

Realistic Interstellar Energy Transfer

I've been reading some of the excellent answers on this question about galactic empires and it led me to imagine a reasonably realistic multi-system 'empire' might keep most or all of its population ...
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9answers
3k views

Historical experience as a guide to warship design?

I've been working on designs for some model starships, in particular warships. My working assumption has been that the designs and materials for these ships will reflect the way that the civilisation ...
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14answers
8k views

How can a dictatorship government be beneficial to a dictator in a post-scarcity society?

In my scenario of a post-scarcity society in the far future, everyone has abundance in their basic needs from food and energy and the technology is very advanced that humans are more intelligent, ...
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5answers
212 views

In a future post-scarcity civilization, how would evolution change humans when survival is no longer a challenge? [closed]

Let's imagine a post-scarcity society where everyone has unlimited access to food, energy and the aging problem has been solved so people are practically immortal. Now my understanding is that, our ...
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2answers
201 views

How would a Type I civilization habitable planet be any different to a Type II civilization habitable planet?

This question is a different version of other questions that I have found here discussing a similar but different problem. The problem I'm facing here is about the excess or waste heat that an ...
8
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2answers
200 views

How small can a perpetual energy source be to run a far-future civilization indefinitely?

You are the leader of a far-future civilization - human or otherwise - that has endured for trillions of years doing whatever far-future civilizations do. You've surrounded stars with Matrioshka ...
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3answers
149 views

If aliens would be like us, how can we survive [closed]

We Humans are the most intelligent species of this planet, we have total control over all other species of this planet, we can use them however we want like (Food,clothes,experiments). We are the most ...
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3answers
362 views

Could a more convenient form of energy transfer/storage than electricity be possible?

I was thinking about the progress that has been made in terms of energy usage for e.g. transport purposes and noticed how the prominent source of energy had changed over time: first muscle power, then ...
4
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1answer
456 views

Interstellar Propulsion for Hard Sci-fi Novel

Hypothetical: Hundreds of years into the future. Humanity needs to travel to exoplanets quickly. I'm aiming for hard sci-fi. What kind of propulsion can travel people at 0.1 - 0.9 lightspeed? Is it ...
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7answers
3k views

Earth under one roof: Feasible?

Okay, so how feasible is it- if even possible- to put the Earth under 'one roof'? So here is the premise. The world is heavily heavily over populated, so overpopulated in fact that almost all of the ...
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1answer
122 views

In 1000 years, could a magnetic bottle-like plasma dome system protect a small city? [closed]

I've looked at the magnetic bottle (hydrogen plasma/fusion) idea as a potential basis for extrapolating what technology might be capable of doing with plasma fields 1000 years into the future...which ...
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9answers
594 views

How advanced can a stagnant civilization on a dying planet be?

Background The concept of an old and dying red planet is common in pulp novels, comics, and gaming. What I am interested in is a world dying under a sun that has turned red and is expanding. The ...
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2answers
201 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 ...
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2answers
199 views

How much could familiar species of animal evolve in 10,000 years? [closed]

In 10,000 yrs, barring human interference, what kinds of evolution might we expect in familiar animals? Leaving aside the causes of the adaptation, for example, is it possible that the grey squirrel ...
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4answers
405 views

How well would a society 35,000 years in the future remember today? [closed]

The story is set 35,000 years after the year 2024. In 2024, Donald Trump makes fun of Kim Jong Un's stupid hair, and long story short, the Earth gets nuked to the point where everything is covered in ...
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2answers
208 views

Reproduction is limited by mutation [closed]

In the year 2020, a cosmic event caused large-scale mutation in humans. Every woman could reproduce only once in her lifetime. Two hundred years later, what would be the population and composition ...
4
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2answers
295 views

How to leave a message for the future?

I want my novel's protagonist to leave a diary on the dying planet Earth for some far-in-the-future being to read. He wants to leave some kind of marker/clue (or perhaps timepiece) for this future ...
6
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7answers
3k views

Is a Utopia worth it? [closed]

In a far away future, when/where technology has erased scarcity, competition and poverty, what purpose does civilisation still have? Suppose a civilisation reaches a level at which it can harvest ...
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13answers
4k views

Possibility of using large asteroid as planetary attack weapon

I am writing a story where the human race is divided into two groups one called Martians (they left to live on Mars) and the other Earthlings (who stayed on Earth). The Martians want to destroy Earth ...
8
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4answers
240 views

How to cause a surge in large carnivore diversity, roughly 5-7 million years hence?

I have had an idea for a possible story, where the protagonists are some kind of future, sapient hominid descendants (Not descended from humans; bonobos or gorillas or something). The main premise of ...
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2answers
83 views

How would we overcome the sinking problem as sediment builds up around urban areas? [closed]

As sediment builds up over the earth, it is compacted into layers of rock, which can be seen in the geological record. However, urban areas typically have good maintenance which washes away any ...
4
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5answers
308 views

How could the government not prevent a medical company from helping terrorists? [closed]

Recently, the government has found out that the biggest medical corporation (responsible for plenty of technological progress) has been financing and providing material aid to an organization ...
5
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2answers
796 views

How to evolve fully terrestrial sharks, 100 million years in the future?

This is part of the same world I am making that this question I once asked is set in: How to evolve a reptile into a wyvern, 100 million years in the future? I might call these questions related to ...
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3answers
201 views

Is it possible to have a civilization after the year 15000? [closed]

In my context, the year 15000 is important but I was wondering if there is a chance to have existing civilizations around this year (or after) ? Based on the Numberphile video, if we keep growing at ...
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3answers
290 views

How Long Can a Burnt Postapocalyptic Forest Be Barren?

Lately, I have been reading word that our latest epidemic of firestorms is so severe that "trees won't plant themselves naturally", according to the Arbor Day Foundation. Indeed, the picture of a ...
3
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5answers
229 views

Can our civilisation create an artifact / time capsule to transfer knowledge to the next intelligent species?

The government of a rich country decides that it's time to create a time capsule to store our scientific knowledge so that in the case of a global disaster (meteor impact, nuclear apocalypse, etc.) ...
67
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22answers
26k views

Humans are gone - what can I harvest from their cities 30M years later?

A new species with technological potential is starting to multiply and subjugate the Earth. What resources can it harvest from human (our) cities which were destroyed 30M years ago (humans are gone ...
4
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2answers
809 views

Post-apocalypse: large mammals erased, can homo sapiens 2.0 build civilisation?

Humans managed to erase themselves from existence, taking a large part of Earth's higher mammals (apes, cats, dogs etc) with them. Millions of years later, the biosphere has recovered and biodiversity ...