If aliens did exist, why didn t they invade Earth?

Since the appearance of human beings on this earth, they have been determined to study some unexplained events, such as prehistoric civilizations, aliens, etc., after years of research, there is still no discovery of aliens, so that many people gradually give up, maybe aliens do not exist at all, they are fictional creatures, if it really does not exist, then how to explain the sighting of aliens that occur every year?

Do aliens really exist? There is no conclusion in the scientific community, nor does it deny the existence of aliens, according to the news of alien events witnessed every year, we can learn that extraterrestrial civilizations are much more advanced than human civilizations, and even have spaceships that travel around the earth at will. Everyone speculates why they appear on the earth every once in a while, is it to understand the earth's environment and facilitate the invasion of this earth?

Prior to this, Einstein proposed that he believed that the earth has been protected by mysterious forces, and that there are still many mysterious things waiting to be solved by humans in this vast universe.

In the book "Three-Body Problem", the three-body civilization has not discovered the existence of human beings, and it is not until human beings expose their position in the universe that they choose to invade the earth. In recent years, human beings have sent a large number of satellites to outer space to detect the orbit of other planets, so does it mean that aliens have long known about the existence of human beings? So why haven't they been able to invade Earth?

Some people speculate that aliens love peace and can't bully low-level civilization creatures, human beings are not even primary civilizations in the universe, maybe in front of them we are just a "little ant", they disdain to compete with us, there is another theory, maybe aliens do not exist in the solar system at all, the earth is in a relatively remote position in the solar system, which is why they have not been able to discover the existence of human beings for a long time, if they once found that there are other life in the solar system, It will take the initiative to attack humans, and when the time comes, humans may not be able to resist the invasion of aliens, and they will disappear from the earth.

Einstein put forward the theory of relativity, which believes that there are two galaxies in this universe, and because the wormhole separates these two galaxies, if you want to go to another galaxy, you must pass through this wormhole, and it is not so easy to pass through the wormhole, the wormhole is deep in the heart of the black hole, and any object close to the black hole will be attracted by the gravitational pull of the black hole and disappear from this universe in an instant.

For human beings, it may be a good thing that there is no discovery of extraterrestrial civilizations, after all, we don't know the extent of their civilization development, Hawking also warned human beings when he was alive, not to frequently respond to the signals of other civilizations, human beings simply can't compete with unknown civilizations, I believe that with the development of science and technology, we can uncover the secrets behind the universe.

What are the chances of humanity winning a war with aliens?

Human beings have not stopped exploring extraterrestrial life, if there are really aliens, but why did they not invade the earth. It may be because the location of the Earth is in a remote solar system, and the aliens have not yet discovered the Earth.

There are many possibilities, such as that the aliens have not yet discovered the Earth, or that the aliens have been monitoring the Earth, and it is also possible that the aliens' spacecraft has not yet reached the Earth.

It is likely that the aliens think the same as us, they just want to live in peace with the earthlings and do not want to start a war.