Why does Hawking think that alien civilization must be superior to the earth?

Hawking is one of the greatest physicists at present, and some of his amazing remarks have really attracted many people's attention. However, many people have misinterpreted Hawking's remarks and spread them on the Internet. Many of his remarks are derived from the Internet.

Why does Hawking think that alien civilization must be superior to the earth? In fact, Hawking did not say this sentence, but it may be a one-sided view of Hawking's remarks by some people. Hawking once said that there is a great possibility of the existence of aliens, but human beings should not take the initiative to look for aliens, and should try to avoid contact with them and avoid the attack of the dark forest law, because aliens may come to the earth to plunder the resources on the earth, and it is very dangerous for human beings to take the initiative to contact aliens.

Judging from Hawking's words, Hawking actually thinks that if human beings try to contact aliens, it will be fine if they don't, but if they contact super civilization, it may bring disaster to human beings, and there is no indication in his speech that alien civilization must be better than human beings. In fact, the universe is so big that the probability of the existence of alien civilization is quite high. Then these existing alien civilizations must have a high level of science and technology, and some are even worse than humans. Even some planets only give birth to life, not intelligent life. After all, look at how many species changes have taken place on the earth before humans.

In fact, if it is really connected, then the probability that it is a super civilization is quite high, because the power of human beings to emit radio waves in space is very small, and it will weaken after not running far. And think about the probability that there is a super civilization within a few light years and dozens of light years of the earth. It's quite small. If a super civilization finally receives the signal from human beings after thousands of years, it may be a disaster for human beings at this time.

However, why does human psychology think that super civilization will persecute human beings and plunder the resources on the earth? This may be related to the development of human society.

Hawking has been worried that sending information from the earth to outer space will usher in disaster. In fact, his worry is justified.

First of all, the earth's radio information can theoretically travel at the speed of light in the universe. For example, the earliest radio signals were hundreds of light years away. But in the process of transmission, the information of the earth will be attenuated with the distance getting farther and farther. That is to say, it will decay after propagating for dozens of light years. The level of scientific and technological development of intelligent aliens who have the ability to detect such signals is definitely higher than that of human beings. So once they lock the signal from the solar system, they are likely to choose to invade the solar system. Just like three of the three people, they may come to the earth hundreds of years later and colonize the earth people. This is no joke.

Secondly, for example, the earth radio information intercepted hundreds of light years away today. Aliens capable of receiving such signals must be smarter than humans. Of course, they are not necessarily advanced, so don't worry about it. However, for example, after tens of thousands of years, that is to say, this signal has spread tens of thousands of light-years in the universe and was intercepted by another intelligent creature, so their ability may be super alien civilization like Singh civilization in the three-body system. Since they can intercept radio signals that have been attenuated for tens of thousands of years, it is conceivable that their ability is not an order of magnitude with that of the earth. In other words, the farther the signal travels, the more developed the civilization with the ability to intercept this signal. Because the signal will be attenuated, the human radio signal will travel 100 light years, and the civilization at the same level of human development will not be received. Therefore, the alien civilization that can receive human radio signals that have spread in the universe for hundreds of years and tens of thousands of years must be very developed.

Some people say, why are fast radio bursts received by humans? That's because the energy emitted by fast radio bursts is so great that it has spread in the universe for tens of thousands of years and is still obviously received by human beings. However, the power of radio signals emitted by humans into the universe is only a few watts, which has been very weak for several light years in the universe and disappeared in the microwave background radiation for more than ten light years. Therefore, an alien civilization capable of receiving human radio messages hundreds of light-years and tens of thousands of light-years away must be the kind of divine civilization. If they are not as developed as humans, they will certainly not receive human radio information, nor can they be found.

Therefore, Hawking's worry is very reasonable. Because the earth civilization has now sent countless radio signals into space. The farthest has spread for a hundred light years. Either the development of alien civilization is too low to receive these signals and these signals will not be discovered. Once received by aliens, this alien civilization is at least thousands of years ahead of the earth. The more distant the alien civilization is, the more developed their civilization will be if they can receive the earth signal. But humans need not worry too much. Because the earth's radio signal has spread as far as 100 light years away, if it is received by aliens, why haven't they come to earth yet? Don't worry too much. But after tens of thousands of years, people will be very worried, because at that time, the radio signals of the earth may have spread all over the Milky Way, and the radius of the Milky Way is only 50,000 light years. We are 23,000 light years from the edge of the Milky Way and 27,000 light years from the center of the Milky Way.

There are hundreds of billions of galaxies in the universe, and through calculation, there are many planets that may be suitable for life. Different alien civilizations have different development processes, some may have died out, and some may have just appeared, so alien civilizations are not necessarily more developed than human beings on earth.

But Hawking is talking about alien civilizations that can reach the earth, and these intelligent alien life may threaten human beings. If alien civilization can reach the earth across several light years, its scientific and technological civilization will certainly far surpass the earth. But as far as the earth's resources are concerned, it feels unworthy of being conquered by advanced civilization. At most, it is possible to pass by. Welcome to the Quantum Lab. Please leave your opinion in the comments.