Do aliens really exist in the universe? Why haven t humans met?

It is believed that there are aliens in the universe, but because our technology is not so developed, there is no way to cross the barriers of the universe, and there is no way to see aliens. So we can work hard to develop technology, such as interstar jumping technology, so that we can find aliens and communicate with alien civilizations.

The universe is very big, we only live in a corner of the universe, our life is very exciting, maybe there is another civilization far away light years away. So we can't be fooled by the current sky, maybe human beings just live in a four-dimensional space, and there are five-dimensional spaces outside of the four-dimensional space. So aliens should exist, but because our technology is not so developed, there is no way to see aliens.

For example, aliens will be stealth technology, even if they appear in front of our eyes, we are invisible, because of the technological gap, so the earth will also be rejected by interstellar civilization, and it will not be able to enter the era of alliances at all. Therefore, we can also work hard to develop science and technology, so that we can find alien civilizations as soon as possible, and we can also take a look at their technology and learn some advanced technology.

Maybe humans have already met aliens, but humans don't know that this thing is an alien civilization. We must know that the world is so big that there is no such thing as a civilization, and that there must be another civilization in this world. Now in many science fiction movies, there has been a future development, and many science fiction movies have also developed in the future, we can get the tip of the iceberg of the world from these science fiction and science fiction movies.

When looking at the world, we should be careful about the world, because we are only a small part of the world, and the world is very big. After all, the Earth is very small, and there are many planets beyond the Earth, but due to technological limitations, we cannot get close to these planets.

I don't know, these aliens are relatively little hidden, and they have not revealed any flaws, it is possible that there are no aliens in the world at all, and science and technology have not reached such a height at present.

I believe that I have always believed in the existence of aliens in the universe, because at present, human technology is limited, and we have not yet detected farther places, so we have not encountered them.

I don't think there are aliens, and the reason why humans have never met them may be because the technology is not advanced enough or there is no right time.

Not necessarily, the specifics are not very clear. Humans are not very clear about the activities of aliens, and have never really encountered aliens.

Aliens have always been speculated and conjectured by everyone, and I think that there is actually a possibility of aliens in the universe, and we have not met them, in fact, on the one hand, because the universe is too large, and on the other hand, it is also possible that the other party's technology is very powerful. <>

In fact, the universe is a very large space, I think in such a large space, there must be the possibility of giving birth to other life, we human beings through thousands of years of reproduction and development, step by step evolved into a human being, become a highly intelligent life form, but in other planets in the universe, I believe that there will definitely be such a reproduction process, there will definitely be some other life forms, they are also growing quietly, but this universe is too big, so it is difficult for us to meet them at all. We haven't even explored the planet, so we can't detect the existence of life. But it's possible that they are also speculating on the other side of the universe whether we exist or not. Because the universe is so large that it can accommodate a lot of human imagination, I don't think it's surprising that aliens exist.

And I think that if they are also living creatures, they must also have a certain amount of technology. Maybe compared to us, their technology will be more advanced, so they have been going around in circles with us, have been hiding their own signs of life, unable for us to detect, or it is possible that they are still in a very primitive stage, never came to the universe, so it is impossible for humans to meet them at all, this is very possible, these aliens may be much better at using technology than we are, they have become the most intelligent creatures in the universe. So we can't see these aliens, and it's a very normal thing.

However, it is meaningless to say that there is no evidence to support this view, so I hope that in the future, while we make further progress in science and technology, we can also really study aliens to see if they really exist, and I also hope that many human beings who have a reverie about aliens can be satisfied.

It should exist, because there are very many planets in the universe, and since there is an earth, there should be other planets with life. It may be that our technological development is not particularly good, and we have no way to explore some places, so we don't encounter them.

I think there are aliens in the universe, after all, there are many things that human civilization can't do, and we haven't met them because the level of science and technology can't reach the level of discovery of their existence.

Of course, there are aliens in the universe, and the reason why we have never met them is because we live on the earth and naturally cannot see aliens.

Since the dawn of humanity, we have never stopped exploring extraterrestrials. Especially in recent decades, scientists have been exploring outer space more and more frequently, and human curiosity has become stronger and stronger. We are very desperate for the presence of aliens.

Otherwise, if there were only humans in the vast universe, we would be too lonely! However, no matter how hard scientists try to explore outer space and search for extraterrestrial civilizations, the result can be said to be nothing: not to mention advanced extraterrestrial civilizations, we have not discovered even the most basic extraterrestrial life, which may mean that life in the universe or the universe is not common, and advanced life, especially advanced intelligent life, is even rarer.

But there's a reason we're deceiving ourselves: the outer space we've explored is so small that the universe is only 93 billion light-years in diameter. Even our own Milky Way galaxy is at least 200,000 light-years wide, and the number of exoplanets scientists have explored is so small.

Scientists have discovered that there are at least hundreds of billions of galaxies in the universe, and that each galaxy, such as our Milky Way, has hundreds of billions of stars. Each star has its own star system, and each star has its own family of planets. There are countless terrestrial planets in the universe, and from the perspective of probability analysis, the possibility of the existence of extraterrestrial civilizations is also very high.

Since the discovery of the first exoplanet in the mid-90s of the 20th century, hundreds more have been discovered in the intervening years, most of them gas giants like Jupiter, but also a few rocky planets and even terrestrial planets. Scientists have reason to believe that with further exploration of outer space, clues to extraterrestrial life will one day be discovered. But the "Fermi paradox" proposed by scientist Enrico Fermi in the mid-20th century seems to hinder the exploration of extraterrestrial civilizations.

The Fermi paradox "isn't complicated, it can't even be simpler, it's just four words: are they **?

<> at that time, they meant "aliens"!If the universe is so large and so ancient, the probability of the existence of one or more advanced cosmic civilizations is very high, Fermi said. If there are advanced cosmic civilizations that have been developing for millions of years or even longer, they should theoretically have spread throughout the galaxy or even the universe.

If such an advanced civilization has the idea of slow meditation, why haven't they come to the Earth Disturbance Ball and have never come into contact with humans?

I think there should be, it's just that we can't even get out of the solar system, so we can't find some people.

The universe is very large, according to our current science and technology, there are no aliens found to exist, and we still need further scientific and technological blessings.

I don't think it exists, because there is currently no evidence that aliens exist.