Why don t aliens show up on Earth

At the current level of detection, it is simply impossible to actively detect aliens.

Isn't there no alien?

Hello, of course aliens have been to Earth, they have been here before the birth of humans, and they even survived for a while. Now there are many UFO incidents every year, we humans don't know what they are, and many of them have been made public, that is, alien flying saucers! Now there are aliens on Earth as well! Thank you.

At present, there is no direct proof of the existence of so-called "aliens", let alone proof that "aliens" have come to Earth.

I don't know, there are many scientists who say that aliens have been to the earth a long time ago, and some say that the earth had highly intelligent beings a long time ago, but then they became extinct.

Aliens only exist in the imagination of human beings, and there are aliens in theory, but science has also proved that due to the vastness of the universe, it is theoretically difficult for alien civilizations to reach the earth, so human beings are destined to live on isolated islands, which is the same for theoretically existing alien civilizations.

It's hard to say about luck, first you have to prove whether there are aliens, and then you have to prove whether you have been to the earth, the first is not more than the first step, and the second step is easy.

Although there will be aliens in the universe, modern astronomical observations have ruled out the possibility of aliens in the solar system. Entering interstellar space in light years is a distant distance that is difficult for us humans or other intelligent beings to conquer! Therefore, the huge distance in space seems to have become an insurmountable obstacle to the interconnection of intelligent beings, so even if there are aliens, it is difficult for us to find out, let alone know that they live in**.

So we don't know anything about the living conditions of aliens, let alone whether their technology is more advanced than ours. You can imagine that even the speed of light of 300,000 kilometers per second would have to travel for years, decades, hundreds, tens of millions of years, or even longer! What an unimaginably long and long distance!

Therefore, it is simply impossible for the so-called aliens to visit or invade the earth, or even kidnap and control the earthlings! Constrained by the laws of physics, it is hard for me to believe that intelligent beings can build spacecraft that can fly at the speed of light, which is all science fantasy, how can it be so easy? Therefore, it is not credible.

Taking a step back, even if intelligent beings were capable of building superspacecraft that could travel at or beyond the speed of light, it would be impossible to move freely in the vast interstellar space measured in light years. I am pessimistic about this, and I believe that human beings may only be able to exist alone forever in the universe!

It can be said that so far there is no real and credible evidence that aliens have visited our earth, and all rumors about aliens visiting earth are not credible. Therefore, I can tell you with certainty that no one has ever seen aliens with their own eyes, and that there is no scientific basis for what aliens look like.

What do real aliens look like? Is it so ugly? It may always be a mystery for us.

It's not enough to prove that aliens have visited Earth with just a few **, and I won't believe it anyway!

Because it is limited by the age of the universe (galaxy), that is, the universe is still young; It is more affected by the evolution of the speed of the DAO

The degree is limited, that is, the evolution of the speed version.

Like the Earth, the power is too slow, too slow, maybe even slower than the Earth's speed. As a result, other aliens are similar to earthlings, and they are still in their infancy. Therefore, aliens are not capable of coming to Earth now, and it is impossible to come to Earth before, that is, aliens, like us, can only travel interstellar in the future.

It may be too far away from us, just like we are so far away from them that it is difficult to reach us. I really want aliens to come to Earth. Ay.. Sympathy.

Aliens don't want to come because they think Earth is too ugly (funny).

Today, I will borrow Liu Cixin's "Three-Body Problem" to ** this question.

The alien civilization "Three-Body Civilization" in Da Liu's book has discovered the earth, and has locked up human technology with Zhizi.

So is there really an alien civilization like the Trisolarans, who have discovered the Earth and are rushing to the Earth?

According to current observations, there are about 150 billion stars in the Milky Way. What is this concept?

If the Milky Way is compared to the Sahara Desert, then the solar system in the Milky Way is equivalent to a piece of sand in the desert!

And there are countless galaxies in the entire universe. What reason do we have to deny the existence of extraterrestrial civilizations?

Then there are two questions:

Have extraterrestrial civilizations discovered Earth?

Do extraterrestrial civilizations have the ability to reach Earth?

The three-body star in "The Three-Body Problem" was located on the earth only after Ye Wenjie pressed the button of the Red Bank base.

Similarly, the Trimaran also has the ability to travel interstellarly, and the light-speed spacecraft of the Second Trimaran Fleet has greatly "shortened" the distance between the stars.

So apart from the "Three-Body Problem" itself, since the invention of communication devices, we have sent countless messages to the universe. With the current level of technology, the radio signals we send are easily attenuated, and after a certain distance is transmitted, it is no longer a message.

But before the signal is attenuated and distorted, has there been an extraterrestrial civilization that has received the signal from the earth?

Or more technologically advanced alien civilizations already have the ability to crack the attenuated signal and locate the location of a piece of sand in the Sahara Desert. Then such a civilization must already have the ability to travel interstellar over long distances.

Aliens don't come to Earth, it's certainly not because of technology.

If you were comfortable at home, would you move to the desert or build a house there? In the eyes of aliens who are higher than humans, the earth is a wilderness, and if you live in a high-tech civilized society, will you run to the African savannah to build a home? You would say that there must be such a madman who will go, that humanity has not yet developed to a higher level of civilization, and that there are regulations on how to make better use of outer space and prevent unnecessary strife, and that the aliens whose civilization has surpassed the earth at that time will allow the "madman" to go?

Suppose aliens exist:

1. Some alien races may still be in a period of low-level intelligence, and they are not as fast as human beings. Some races may have perished.

2. According to the probability, the universe is so big, even if it is the Milky Way, it is estimated that there are about 1500-400 billion stars in the Milky Way, how long does it take to find them one by one, even if there are 10w kinds of aliens, and at the same time, they may not be able to find earthlings within 10,000 years, of course, this also depends on their ability and purpose.

3. The speed of light cannot be broken.

The principle is simple.

First, from the perspective of the rules of the universe.

You can't look at it from the perspective of the earth.

Second, extraterrestrial civilizations also came out of our environment, and the path was different.

I told you a story to understand.

There are two protagonists in the story, one is a rich man (an alien civilization) with a lot of money and a high status, and the other is a farmer (who is an earthling).

One day the peasants were envious when they saw the rich and wanted to have something like the rich man....One day the farmer saw the rich man walking, so he greeted the rich man, so he chatted (as for how to talk, I won't say much), when the farmer asked the rich man, I envy your wealth and status, I also want to be the same as you, the rich man said, in fact, I also came out step by step like you, I was as old as you and I couldn't eat enough...One day later, the peasants of that year were already local tyrants, and they far exceeded the rich of those years.

Another story is the rich and the peasants.

The peasant has a piece of land (this land is the earth), and the peasant feeds himself with this land, until one day the farmer is sick, it is a terminal illness, and the rich man learns the news, so he silently waits for him to die soon, and he dies and uses this land to do something earlier....The peasants died, and the competitors among the rich took a fancy to the land....

The first story has very realistic examples.

For example, in the early stage of the development of New China (China is not very prosperous), China wanted foreign technology, foreign countries did not give it, and then it surpassed other countries step by step, you can also find your friends, who were not very good in the past, and finally mixed better than you, the second story is also very realistic, but from the rules of the universe, suppose that there is no activity in a region, no one lives, it is an area that has not been explored, and other countries want to spend a piece of land here, and there are many thoughts about wanting this land.

In the end, I want to tell you that it is impossible for an alien civilization to come to the earth to destroy it (the technology of an alien civilization is very high, once it reaches this height, there will be a cosmic war, and this cosmic war is to stabilize the survival of the universe and avoid it), because human beings cannot threaten the interests of extraterrestrial civilizations until they are extinct.

It is the "closest combination" of planets and stars to the Earth and the Sun ever discovered. Kepler-452b is the planet that is most similar to the Earth in shape and external environment, hence the name Earth.

It should be broadcast that the universe has detected a mysterious radio wave signal, and people speculate that it may be a signal sent by aliens.

Are there really aliens in the world?