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Questions tagged [universe]

Concerning the entire universe, the universe itself, and alternate or parallel universes.

28
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0answers
645 views

How soon can the first stars form?

Introduction In our universe, the cosmic microwave background was formed approximately 400,000 years after the Big Bang. It was hot, but within a few million years after the Big Bang, it would no ...
19
votes
3answers
4k views

The One-Electron Universe postulate is true - what simple change can I make to change the whole universe?

The one-electron universe postulate, proposed by John Wheeler in a telephone call to Richard Feynman in the spring of 1940, hypothesises that all electrons and positrons are actually ...
-5
votes
2answers
206 views

If the universe turns out to be infinite does that mean that the multiverse isn't real? [closed]

Let's say that scientists somehow discover that the universe is infinite. In particular, they say that after the big bang, the universe expanded everywhere. In that case, if the universe is infinite ...
-2
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3answers
123 views

How could a creator develop from pure energy to a conscious all knowing being [closed]

Let's assume the purpose of life is to reproduce to survive and on the quantum level for sub atomic particles to bond for longevity. Could an unknown force of energy throughout the ages of time ...
6
votes
3answers
314 views

What would it look like in the accretion disk of a feeding supermassive black hole?

I wanted two characters unaffected by the heat and gravity to be close to a super massive black hole within the accretion disk, at times moving in orbit and at times completely still. Stars and ...
6
votes
2answers
558 views

How close could a planet get to a super massive black hole before being destroyed

I wanted to create a scene where two god-like characters are talking or fighting on a planet or fragment of planet to which they've teleported that's about to be obliterated by a black hole. The ...
28
votes
5answers
6k views

How to detect that the universe got mirrored?

This might be more fit in physicsSE, but since I don't even know if my premise is physically sound, I'll post it here. One day, something caused the universe to get mirrored, meaning a left-right ...
3
votes
5answers
235 views

How can I prevent planeswalkers from organizing into an army? [closed]

A demigods is a human who is born with a divine spark. When this spark is activated, the individual becomes a being with incredible power. It grants them a number of abilities, including immortality, ...
4
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2answers
210 views

Can a planet with chaotic rotation have more than one ring rotating in differents axis? [duplicate]

Let's say that planet earth have a big explosion . An explosion generated in earth big enough to change the planet shape. Making earth having a chaotic rotation like Hyperion leaving water and rocks ...
9
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9answers
6k views

What would shake a galaxy and what would shake the universe?

I'm trying to think of what kind of cosmic event would cause an explosion powerful enough to "shake" or disrupt the whole flow of a galaxy and on that same note what other kind of super cosmic event ...
5
votes
7answers
2k views

Travelling the multiverse by accident? [closed]

As you've probably guessed, I have no idea how multiverses and parallel universes, or space-time travel, etc work. I don't know how Physics or Mathematics explains alternate universes. But, they are ...
-4
votes
2answers
257 views

How to start a giant war that no one can stop? [closed]

I want to create a giant war, called the 10,000 War. This war becomes so big entire civilizations get wiped out, and no one can stop it, though everyone wants to. The war cumulated to become bigger ...
13
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10answers
3k views

How small can the universe be while still appearing infinite?

I'm working on a concept of universe creation. The best way to describe it in a sentence is the Judeo-Christian Creation Story but from God's point of view. My question is, staying as close to hard-...
10
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9answers
3k views

How to justify that people forgot the past and that they have neighbours?

Let's say that there are 2 countries with very different inhabitants. Country A has no idea that country B exists. Country B may or may not know about Country A. Country A is surrounded by large ...
-6
votes
2answers
367 views

Can our brain access other dimensions/universes? [closed]

Following the Multiverse theory and a possibility that multiverses do not differ much when compared with one another, can we explain a person accessing thoughts or vision from a different multiverse? ...
0
votes
1answer
153 views

considering the universe is 13.8 billion years old aprox. how is likely that an alien civilization is more advanced than us? [closed]

considering the universe is 13.8 billion years old aprox. how can a civilization be even more advanced than us if we both lived the same amount of time since the universe was born?. i mean what could ...
1
vote
6answers
293 views

How could it be possible for an entire region of space to be filled with Earth like planets?

Ok, I get it, me dumb, you smart. Only smart questions allowed. In any case I'm going to leave the question unaltered in case some others might get something out of the answers. Thanks to everyone ...
3
votes
2answers
299 views

What would a world be like with cross dimensional contact? [closed]

A universe of 10 dimensions I'm trying to build a universe with interactions between beings from different dimensions. Only dimensions 3 and up would be capable of spawning any sort of life. The most ...
3
votes
0answers
222 views

Physical laws for a multiverse with white holes? [closed]

My fictional worlds reside in a multiverse. More specifically, they reside in a universe within that multiverse that is very similar to ours. But here are some big differences: White holes are in ...
1
vote
3answers
235 views

How everything will act in a world of two time dimensions? [closed]

As far as we know , we live in a universe with only a single dimension of time, we know that some events happens BEFORE or AFTER other events , we know that some events happens slower or faster then ...
1
vote
3answers
369 views

What happens to humanity if every star goes nova simultaneously?

I'm working with a plot whose backstory involves two alternate timelines colliding with one another. Our solar system is spared the worst of the side effects due to half of the mass of each version of ...
6
votes
5answers
243 views

How to reduce demagogues' influence on the universe literally shaped by people's beliefs?

The laws of the Universe are not set in stone. Impossible does not exist. Everything, absolutely everything, is possible given that enough people believe in it. Centuries ago magic was as real as ...
1
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3answers
311 views

“Alternate background colors”

A level IV parallel universe is a universe that may have different laws of nature than our own, but still work out to be mathematically true. I'm thinking about a level IV parallel universe where, ...
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1answer
133 views

What objects can be found in the universe when all the stars are gone? [closed]

Far in the future, in a termic death of the universe scenario, what objects are still around to see? Will planets still be around, gas clouds, black holes, star remnants? Any other new or old types ...
2
votes
3answers
398 views

What would entropy look like in an infinite number of universes?

There was a question recently about gatekeepers controlling the flow of goods between universes. The gatekeepers became a religious order. The premise got me thinking, and I have come to a conundrum ...
0
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4answers
345 views

Size of the “Monster Hunter” planet

Imagine a world in which you have all the creatures from the game franchise "Monster Hunter"... Screenshot from the upcoming Monster Hunter World game ...and when I say all the creatures I mean ...
3
votes
2answers
451 views

Could you suspend your disbelief if I explain the oddities of quantum physics as a simulated universe with reduced dimensions? [closed]

A visitor claiming to be from outside our universe has come to our world illegally to push forward her academic project (a simulation that happens to be our universe) before it get's shut down. ...
1
vote
6answers
358 views

Variability in Alternate Universes [closed]

Lets assume that the Multiverse Theory is true. Now lets talk about a Kardashev Type III Civilization living in one of these parallel universes. For the sake of the argument, lets assume that this ...
0
votes
2answers
118 views

How are the directions on a planet defined? [closed]

How are the directions on a planet determined? Is it based on sunrise, if the sun rises in the east? Or is it based on magnetic north? I would like to know about directions for planets which may have ...
2
votes
0answers
128 views

Can the universes that make up the multiverse and alternate realities exist as 2 separate entities? [closed]

To try and clarify: A multiverse can contain many different universes with varying laws of physics, and is usually depicted as bubbles (universes) bouncing around in the multiverse. On the other hand, ...
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votes
2answers
188 views

Travelling through a black hole like through a wormhole?

To add to my previous question. Can a black hole be a wormhole or can a wormhole exist within a black hole? The result I want to get is this: You enter a black hole in one part of space and exit from ...
1
vote
1answer
138 views

What could lead to the appearance of a wormhole relatively close to our planet?

I was thinking of different ways a wormhole could appear relatively close to our planet but even reading much about wormholes I can't think of any possible conditions. I need some theoretical or even ...
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votes
2answers
192 views

Viability of a Dyson Universe? [closed]

So going beyond the idea of a Dyson Sphere where could a Dyson Universe be possible? The Idea of a Dyson Universe is like a Dyson sphere with massive celestial engineering and construction in the ...
0
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2answers
211 views

Size of the universe, zipped

Compressed archives in computer science are, from some perspective, decreasing the data size by minimizing repetition of data. Take each particle (to any precision you prefer) in the whole universe, ...
43
votes
17answers
7k views

How to prove that the solar system isn't inside of a localized physics bubble? [closed]

So, let's say that somewere out past the Oort Cloud, physics just kind of... changes. For whatever reason. Maybe space is magic, or maybe we're just in a weird sort of localized physics bubble. The ...
0
votes
3answers
245 views

Can Brian Greene's Ultimate Multiverse contain Cthulhu Mythos?

I'm wondering if Greene's Ultimate Multiverse could work like Heinlein's World as Myth concept or Stephen King's Dark Tower. 'Work' in a way that it could contain fictional universes. In this case, ...
0
votes
3answers
107 views

How does a community of a Universe Simulator have the same language as its creator? [closed]

This takes place in the optimistic future. While a war general is strategizing his plans of attack, he rejects using outdated war games of the past, and instead tasks a few members of his team to ...
4
votes
4answers
345 views

What would be the “scientific” explanation for having memories from a parallel universe?

This world is like ours but time travel is possible. The character and others have made time travelling in their past to change things but did not think about the consequences, so they created ...
4
votes
2answers
100 views

What are the Optimal Projects to Take Advantage of a Pocket Dimension with Variable Time? [closed]

Greetings from the University of Scienceton! We're very excited to announce the recent discovery (or creation) of a pocket universe where the flow of time varies dramatically as one gets farther into ...
17
votes
3answers
6k views

What would powers based on the four fundamental forces look like? [closed]

The four fundamental forces, those being Gravity, Electromagnetics, Strong Nuclear Force and Weak Nuclear force are said to be the forces that hold the universe together and so on. Based on that ...
8
votes
7answers
286 views

Staggering “Now” Among Many World Multiverses?

Regarding the Many World Multiverse, everything I've been reading (and searched on SE) seems to assume that each (parallel) universe is, at this moment, the same age. For my story, I need this to not ...
4
votes
4answers
168 views

In a parallel universe can there be non-carbon based lifeforms [duplicate]

In our universe, an organic compound is defined as a compound that contains carbon with an oxidation number lower than +4 (Citation needed.). In a parallel universe where chemistry laws are different, ...
2
votes
1answer
518 views

How do you prove mirrors aren't literally parallel universes? [closed]

See this post on Puzzling SE if you still want to answer. "Each mirror is a world of its own", Joe explains. "Joe, that's bullshit! Mirrors are just mirrors!" Rita proclaims. Joe proceeds to lay out ...
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votes
1answer
79 views

Is an identical recreation of our world's creation happening right now? [closed]

If we assume the scientific idea of parallel universes, assuming that all universes that exist now are different from each other in the present and/or past, and so a new universe is created every time ...
1
vote
3answers
471 views

Could a planet with no satellites and no tectonic plates be habitable? [closed]

If there was an earth-like planet in the habitable zone, without tectonic plates or a satellite what would its characteristics be like (structure, geology etc.)?
3
votes
3answers
390 views

Entropy of the afterlife

My world is based on the concept of afterlife, with a twist: people who died in other worlds are resurrecting in mine. Once in the afterlife world if they suffer another lethal injury or condition ...
7
votes
2answers
177 views

Other universes in a broad sense [closed]

When speaking about other universes people usually consider altered physical laws, while leaving logic and other basic things unchanged. What if to consider other universes based not on different ...
1
vote
5answers
514 views

Material for container that survived the Big Bang

I read a novel that mentioned about a past civilization before the Big Bang. They predicted such phenomenon would happen some day, and to preserve their species and recreate their population after the ...
0
votes
2answers
160 views

Death as a parallel or serial process [closed]

In this world, conscience takes a particular amount of -a special kind of - energy to be hosted by a functional brain. If prior and post life exists due to parallel universes, would you bet life and ...
0
votes
4answers
608 views

universe with infinite energy

In our universe infinite energy is not possible, at least given the known laws of physics. But in another universe what would allow for energy to be in the same amount as space? But how large is ...