Human beings are a very great race. It only took more than 2 million years for us to embark on a different path from other beasts and begin the evolution of wisdom. The human civilization is only about 5,000 years old, but we have embarked on the path of technological development hundreds of years ago.
From the point of view of speed, the evolution and development of human beings are undoubtedly very amazing. It is necessary to know that the dinosaurs, which were extinct by asteroids 65 million years ago, once dominated the earth for 160 million years. For such a long time, dinosaurs did not evolve and evolve. wisdom.
After mankind entered the age of science and technology, he has a new understanding of the earth and the world outside the earth. Especially when we walk out of the earth with the help of technology and see the vast universe, everyone will be proud of the achievements of mankind, and at the same time sigh at the vastness of the universe and the smallness of the earth.
The universe has too many mysteries to be solved for human beings, and among the many things that need to be explored and revealed, the exploration and research of extraterrestrial life and alien civilization is undoubtedly a very lively topic. So is there intelligent life like human beings in the universe?
From the perspective of human beings, many people may think against their will that there are no other planets of life in the universe, and no other intelligent life. But when scientists put a bunch of data in front of us, everyone was silent. Let’s take a look at these data first.
The place where humans live is only a small solar system, and outside the solar system there is a Milky Way with a diameter of 100,000 light-years. There are about 150-400 billion star systems in the entire Milky Way. Even if there are only three planets in each star system, there are at least trillions of planets in the entire Milky Way, and quite a few of them are terrestrial planets.
The Milky Way is just a grain of dust in the universe. The human observable universe currently covers 93 billion light-years. In this range, there are at least 2 trillion galaxies similar to the Milky Way, and each galaxy has hundreds of billions. There are no less than trillions of planets in the star system of. Calculating in this way, we will find that the number of planets in the observable range of 93 billion light-years is immeasurable.
What makes us even more shocking is that according to the current observations and analysis of the universe by scientists, it is possible that the universe does not have a boundary in human understanding. Simply put, the universe may be boundless. In this boundless space, do you believe that human beings are the only intelligent life?
I believe that every friend is hard to believe, and scientists naturally find it impossible. Therefore, after human beings walked out of the earth in the last century, they started the search project for foreign civilizations. To search for extraterrestrial civilizations, we need to use the power of science and technology, so scientists began to proceed through various methods. For example, they launched Voyager 1 and Voyager 2 spacecraft, which carry a record of information about the earth and human beings. The optical disc, heading out of the solar system.
In addition to sending out interstellar spacecraft, we also use radio telescopes to constantly monitor the starry sky and receive various wireless signals from the universe, hoping to search for signals sent by alien civilizations to humans. In addition, human beings have taken the initiative to send wireless signals to the universe many times, hoping to be received by alien civilizations.
At the same time, we are constantly looking for terrestrial planets that are very similar to the Earth in the universe through astronomical telescopes. With so many methods, have we found aliens? The answer is no, until now we have not discovered any extraterrestrial civilizations, where are they?
This weird situation makes scientists feel confused. For this reason, they put forward various hypotheses and conjectures. Some hypotheses are admired by many people, such as the laboratory hypothesis. The hypothesis believes that the starry sky where humans are located may be the “laboratory” of advanced civilizations, and humans are the “little mice” in this laboratory.
Advanced civilization constantly monitors the movements of human beings on the earth, and naturally does not allow us to contact the outside world. It is possible that a screen may be set up outside the solar system or in the wider starry sky, so that the outside world is disconnected from the solar system.
In addition to this laboratory hypothesis, scientists have also put forward the “virtual universe hypothesis”, believing that the world and universe where humans live is not just a virtual universe simulated by a computer, and humans are just intelligent biological codes designed by external programmers. Therefore, we cannot find any alien civilization.
The “virtual universe hypothesis” seems very absurd, but the fly has been supported by many scientists and the big cows in science and technology. For example, the philosopher Nick Bostrom from Harvard University has published related research papers. In the paper, through rigorous logical analysis, he believes that the probability of human beings living in the virtual universe is 100%.
The reason why many scientists support this conjecture is that humans have begun to study virtual reality technology. Once this technology is realized in the future, it will not be difficult to create a virtual world that is infinitely close to the real world.
The above two hypotheses have not been accepted by everyone, and scientists are still searching for answers. In May last year, at the “Humanity-Mars Summit”, Abraham Loeb, the dean of the astronomy department and astrophysicist from Harvard University, put forward a shocking conjecture.
Through the analysis of human behavior patterns and logical thinking methods, he and his team believe that the reason why humans have not found aliens so far is not because there are no aliens in the universe, but because their existence is extremely short. So short that we can’t find traces of their activities.
Many people may think this way: 13.8 billion years since the birth of the universe, how could the existence of aliens be so short in such a long time? The solar system was born in 5 billion years, the earth was formed in 4.6 billion years, and the universe was born hundreds of millions of years earlier than the solar system, and galaxies of billions of years abound.
There are so many galaxies that were born earlier than the solar system. If some galaxies give birth to planets of life and give birth to intelligent life, their development time will far surpass that of human beings. How could it be so short? Abraham Loeb’s point of view is that wisdom civilization will self-destruct in the process of developing people, and it is difficult to develop into a real interstellar civilization. After a civilization has self-destructed, after countless years, a new civilization will be born and developed, and then destroyed. , In order to continuously reincarnate.
Abraham Loeb came up with this conjecture by analyzing the impact of human behavior on the earth. We all know that after human beings entered the industrial age, affected by industrial activities, the rate of extinction of the earth’s organisms in the past century has been before the industrial age. Thousands of times, nearly a million species of creatures have now been pushed to the brink of extinction by humans.
This is the case for human industrial development, and then all intelligent life in the universe may also be similar to humans in the development process. While industry has brought about the rapid development of civilization, it is also constantly destroying the ecology and destroying the entire intelligent civilization. This is very much like a cosmic filter. All intelligent civilizations may be stuck in this important level and pass by, and finally usher in self-destruction.
Mankind is now facing such a problem. At present, the ecological environment of the earth is getting worse every year, and the environment is deteriorating at an accelerating rate. If the development continues as it is now, the earth may no longer be suitable for human survival in hundreds of years, and the development time of hundreds of years is not enough for human beings to become an interstellar civilization that can cross the interstellar.
If we cannot become an interstellar civilization, we can only be trapped on the earth, and finally end up with the destruction of the earth’s ecology. In addition to the accelerated ecological deterioration brought about by industry, war may also bring humanity to an end. It is necessary to know that the total amount of nuclear weapons currently possessed by mankind is enough to completely wipe out all life on earth, including mankind.
Of course, these are just our conjectures, we want to find the answers behind them, and look for the possible existence of extraterrestrial civilization. We can only work hard to develop technology and go out of the solar system to explore and find. Perhaps on other planets outside the solar system, we can find ancient alien civilizations or relics left by alien civilizations.