Theoretically, there are a large number of civilizations in the universe, but why are there no civil

So it's possible for them to come to Earth, or at least to send us some kind of contact information.

On Earth, at least, they can send us some kind of contact information.

At the very least, they can send us some kind of contact information, because both the earth and humans are like ants to them.

This thing does exist, it's really amazing, and there is no way to explain the specific reason.

It's possible for them to come, or at least to send us some kind of contact information.

Maybe those civilizations are too far away from us to discover us.

I think it's because those civilizations may be so far away from us that they haven't discovered us.

How can alien civilizations be so easy to discover, especially for the reason of science and technology, it must be explored step by step, although technology is now very developed, but this is not enough, and when it can really grasp the interstellar civilization and can go out of the solar system to explore the existence of other civilizations, it may be a long time ago.

Everyone may have a lot of curiosity when they see the vast universe, and everyone will guess whether there really is an extraterrestrial civilization, just to find these extraterrestrial civilizations, many scientists have also adopted a variety of methods, although we have not found the emergence of other civilizations, but this does not prove that there is not, it can only be said that the current science and technology has not yet reached the point of development, and can explore without scruples.

Of course, it is also possible that there is a mistake in the way everyone is looking, or that these extraterrestrial civilization signals are simply impossible to search, such hope is still very slim, some goals are simply not possible to observe at close range, only after the real find can we clearly understand some signs of civilization in this galaxy, and the interstellar distance is actually in light years, then this may be hundreds of years or even thousands of light years away.

If you want to truly realize the communication between civilizations, you may have to break the limit of this attack speed, and this requires scientists to pay more effort and time, of course, the transmission of the speed of light signal is already very fast, but this speed may be very slow on other planetary civilizations, maybe in another planet, there is also a civilization that is silently exploring, after all, the universe is so big, and human beings are very small.

The birth of the earth has been 4.6 billion years, life has also appeared for a long time, such a vast universe, if you want to really discover some civilizations, that is, it is thousands of times more difficult than looking for a needle in a haystack, maybe the civilization level of other extraterrestrial life is too high, as ordinary human beings are really imperceptible, of course, all this is just everyone's speculation and curiosity, maybe other extraterrestrial life exists in different forms.

There are two main ways for humans to find extraterrestrial civilizations, one is to send the Voyager probe, and the other is to search for signals of extraterrestrial civilizations that may exist in the universe, resulting in a relatively low probability of success.

This is because the current level of science and technology of our human beings is conditionally limited, and we still need to go a long way on the road of science and technology.

I think that although the universe is vast, there are not many planets suitable for human life, and the earth should be the only one, so we have not yet found a civilization like us.

Are there other civilizations in the vast universe? Is our galaxy the same advanced civilization as ours? They use the Earth as a model, and under the conditions of the formation of advanced civilizations, the theory estimates the existence of about 36 active civilizations in our galaxy, but the average distance from these alien worlds is about 17,000 lights over the years, which is still difficult to achieve in our existing technology.

A work led by researchers at the University of Nottingham suggests that intelligent life may not only exist on Earth, but may have more than 30 civilizations in the galaxy system.

Hantingham University The University of Nottingham said in a report that "the assumption is like the Earth, it would take 5 billion years for intelligent life to form, and then at least our Milky Way," said the University of Nottingham University. Positive civilization.

To estimate the number of intelligent civilizations in the Milky Way, the research team considered two main "astrobiological Copernican constraints", which are conditions that depend on "intelligent" civilizations. Within these limitations, researchers have taken the planet over their lives with a lifestyle of about 45.4 billion years. They believe that smart lives could take shape in 5 billion years).

In addition to these two Gonexa-based biological limitations, scientists also took into account technical factors. According to the researchers, the number of "smart" civilizations depends on technological prowess, in particular, the fact that they send a certain signal into space (radio transmission from orbiting satellites to television).

Taking these criteria and many assumptions into account, researchers may have made an estimate of the number of intelligent civilizations that may exist in the galaxy system. "We calculated that there should be about 36 active civilizations in the Milky Way," according to the researchers, who say that the average distance from Earth to these alien worlds is about 17,000 slight ages. This is too far from the existing human technology.

The classical method of estimating the number of intelligent civilizations depends on guessing the values associated with life, and people's perceptions of these questions have a large truncation," indicating that he was referring to the "values related to life" at the distance of the sun star.

Despite the new estimates, the researchers do not think they are convincing enough that the civilization of life on Earth can still be the only civilization in the universe: because there are other civilizations that may not exist like humans. Over time, we may not exist at the same time.

With dozens of foreign civilizations in the galaxy? "If we find intelligent life in the universe in general, it may indicate that our civilization may have existed for far more than a few hundred years; If there are no other active civilizations within the galaxy, it may indicate that I can't exist for long. Find the intelligent life of the aliens and help us discover their future and destiny.

does not exist. Because the chance of life being born is very small, and the chance of forming intelligent beings is even smaller, I don't think there is any other civilization.

It should exist, because the universe is boundless, but other civilizations have not yet discovered it, and I believe that sooner or later it will be discovered.

There must be, but everyone's level is not good now, so there is no way to get in touch, and we must accelerate the development of our own strength.