The exploration of the universe by human civilization is just beginning, and we all know that the distance from the Earth to the Moon is 380,000 kilometers, and this distance is not to mention that in the universe, that is, in the solar system, it is a small existence.
And the current universe of human science and technology have not even conquered the distance, not to mention the vast and boundless Milky Way and even more so in the depths of the universe. Looking back on the millions of years of human evolution, we have experienced the cruel baptism of nature and bloody species competition, only to develop to the present stage. And the human cosmic exploration journey, will also be similar to the Earth's civilization as a long time.
I'm going to draw on the analysis of the relevant people, and answer your question with a more reasonable argument.
It is now widely believed that civilization can be divided into a grade to, and also quite fine what god-level civilization are out, make like playing Starcraft. My idea is to keep it simple, and take human civilization as a perspective and divide it into three levels: the solar system level, the galactic level, and the cosmic system level.
We can also use human civilization as a basic reference to indirectly analyze which level or stage the possible alien civilization is in.
1, the solar system level, we may think that we are now not this level of civilization? But the fact is very face, our human civilization nowadays can only be called the global village civilization, or can also be called the redneck civilization. Probably the feeling is like a farmer who just came out of the village, intending to go to the county town to skate around for a while, halfway to the road, realized that there is no more coins and turned around to go back.
This is a very good description of the current human civilization, which has a long way to go if we want to spread our civilization to all parts of the solar system, or if we want to roam around the solar system and exploit resources at will. The solar system can be sure that there is no extraterrestrial life, so it can not be analyzed here, so do not elaborate on the point of view.
2, the level of the Milky Way, a little knowledge of astronomy, the Milky Way is more than 100,000 light years in diameter, the human civilization to reach the entire Milky Way, it is estimated that our civilization now have to be called by the people after the new "Yuanmou, Lantian civilization.
Here we can analyze the existence of extraterrestrial civilization, first of all, we have to human point of view as the main line, because we human beings in recent years very much want to communicate with those extraterrestrial civilizations, and even Voyager 1 is said to be singing and flying out of the song. Since our human civilization is so eager to make friends, those advanced civilizations that may exist in the galaxy should be thinking the same way.
If that's the case the question arises, why haven't we found them so far or why haven't they seen us? The answer can be found in our human civilization, which is not technologically advanced enough, i.e. not at the level of galactic civilizations, which have not been civilized for a long time or are still at a low level of biomorphism, just like us.
3. If this kind of civilization really exists, it will destroy the human civilization and even the whole earth in a matter of seconds. Imagine them mining resources on other planets, extracting energy from stars, owning a huge space fleet, finding wormholes and traveling through space as if they were crossing a bridge, treating black holes as natural garbage dumps, and ...... Can't! I can't think of anything else, that's the extent of being too powerful, right?
So the civilization that can reach the level of the universe is the most terrifying existence, we have this small handful of children's net land or do not expect to be found by them.
First of all, there is no basis for answering this question.
First of all, we can't be sure whether alien civilizations exist.
First of all, we don't know for sure whether alien civilizations exist or not. Even if they do exist, there is no reference to how many there are and how far they've come.
If we think about it, there is a limit to what we can imagine, and that limit is what we can perceive from our experience. So unless an alien civilization is roughly similar to us, you won't be able to imagine it, which is the limit of human logic.
The unimaginable thing about alien flying saucers, and all kinds of flying machines, as if they don't need to be launched by any rocket launcher, as well as the speed of its flight is arbitrary, randomly straight up and down, and 90-degree bends, all of these are unimaginable to the people on Earth, and can't be done, and if a certain country on the Earth can do this kind of flying saucer, according to the ambition of the mankind, the world may be his.
1 They are able to modify their genes
2 They are able to create highly intelligent humans
3 They are able to travel through time and space and achieve instantaneous transportation.
Thank you for your question! Here I share my opinion.
What technologies do alien civilizations have that we can imagine? It's hard to say, we haven't come into contact with an alien civilization yet. But a lot of imaginable technology has actually made it to the screen. For example:
Star Trek - cryogenic hibernation, time dilation
Star Wars - battle droids, bionic hands, 3D entertainment, all kinds of spaceships and fighters
Prometheus - ionic thrusters, medical pods
Alien - cyborgs
Time Machine - time machines
Avatar - consciousness transfers, anti-matter spaceships
The number one player, the first player, the first player to be born in the United States. /p>
Top Gamer - VR-based devices of all sorts
And so on. There's also a lot of technology that's been imagined in science fiction that hasn't made it to the big screen yet. For example:
Three-body-quantum entanglement, low-dimensional unfolding and etching, curvature drives, and so on.
No aliens, don't formally ask.
The aliens briefed me a little earlier.
First of all, the Dyson sphere kind of thing certainly will not get, have the technology also do not get, cost-effective is too bad, and besides, their host star brightness change is too obvious, it is easy to be detected by other civilizations, too dangerous !
Controlled fusion has been popularized, and can be miniaturized to various settlements, so the energy is basically inexhaustible.
The way to deal with all kinds of toxic and harmful garbage is to send it to the material obliteration furnace, no matter what kind of material you are, all of them will be reduced to basic particles, and then molded into a variety of shapes of substances.
The first thing you need to do is to get rid of all the stuff you've got.
It's unimaginable
Take the Dyson Sphere, for example. I think the Dyson Sphere is the most advanced extraterrestrial technology we can imagine.
The Dyson Sphere, a concept introduced by scientist Freeman Dyson in 1960, is a man-made celestial body.
When it comes to what this celestial body does, you'll know a little bit about it: it's a celestial body made by intelligent beings that surrounds a random star, wraps it completely around, absorbs its energy, and utilizes it.
Put it this way, you get the idea, right? The main purpose of this object is to take the energy of lifeless stars in the universe and utilize it. In other words, it is a natural nuclear reactor.
To wrap around a star, the object would have to be extremely large, ranging from millions to hundreds of millions of kilometers in diameter. For us, the Dyson sphere is still just an envisioned concept that cannot be realized. If you want to make a Dyson Sphere, you need at least these conditions: first, you need to have the ability to fly out of the star system in which you live, after all, it is not possible to just use up the energy of your own star, otherwise how can you survive; second, you need to have the scientific conditions to be able to make such a complex and huge celestial body, for us, even if we can fly out of the solar system, but want to stitch together the Dyson Sphere in space, it will take a great economic base and a few hundred years to accomplish. hundreds of years to accomplish.
And Freeman Dyson himself, the scientist who came up with the idea of the Dyson sphere, pointed out later that making a Dyson sphere that completely wraps around a star might not be mechanically sound. If one wanted to absorb the energy of a star in this way, one could do so by orbiting the star with giant artificial satellites.
Of course, if we really understand an advanced alien civilization, we will certainly see more incredible high technology, let us look forward to it!