In essence, humans are not much different from other mammals. Humans are the only intelligent life on earth. It is also composed of different parts of the body. From a microscopic point of view, our body is composed of many cells consist of. Every cell has its own function, and no one is superfluous.
When any of us is lost, it will have certain damage and impact on the entire human system. In the social system of human civilization, we use this principle, and this system is also applicable. It is composed of various structural units, and each structural unit is composed of humans, among other things.
If any structural unit is missing, it will also have some serious consequences for the entire human society. The more perfect and stable the structural unit, the more stable the human society will be. This is an important guarantee for the continuation of human survival.
Put this principle in the entire earth's ecosystem again, and you will find that this is the same. We all know that the earth's ecosystem has evolved over billions of years to form what it is now, and a stable ecosystem It is of great significance to the evolution of life.
After a long period of ecological evolution, mountains, flowers, grass, and trees have been formed. Each element has its own meaning. Once these elements continue to disappear, the earth's ecosystem will have problems, and in serious cases, the entire ecosystem will be caused. collapse.
Since humans entered the industrial age, they have continuously destroyed the earth’s mountains and rivers, causing a large number of forests to disappear, many rivers drying up, and so on. These destructive behaviors are accelerating the ecology of the earth. Deterioration, therefore, we will see that the current global environment is becoming more and more unstable, more and more extreme, and the climate is getting worse and worse.
Putting this principle and logic into the entire universe, you also need to think about this question: the earth is as small as dust in the universe, and human beings are also very small in front of the earth, so what is the meaning of the existence of the earth? ? What is the significance of human existence in the universe?
Maybe some friends think,In the vast universe, there are countless objects, and naturally there will be a large number of life planets, so there should be many intelligent human beings. The earth is just an ordinary life planet, and human beings are just an ordinary civilization. Neither the earth nor human beings have any special meaning. So is this really the case?
When people's understanding of the universe continues to improve, we will find that from a scientific point of view, the appearance of this universe can be described as "coincidence". For example, the four basic forces that constitute the order of the universe, but research has found that once any one of the four basic forces changes, its impact will be devastating.
If the strong nuclear power is a little bigger than it is now, the star in the universe will have a very short lifespan, and the lifespan of the star will be very short, so there will be no life. If the weak nuclear force is smaller than the current value, then the important metal elements that constitute life will no longer exist, and there will be all living things on the earth now in nature, and no life will be born.
In addition, for example, the gravity we are studying, according to the model of scientists, once the gravitational constant in the universe changes, the current universe will change from stable to chaotic. In this chaotic environment, it is naturally impossible for life to be born. .
The birth of the earth is a coincidence of the universe, and the birth of humans on the earth is also full of coincidences. According to the theory of evolution, the emergence of human beings is due to a mutation in a gene of , Thus embarking on the road of wisdom evolution. In the long life years, various creatures, especially in the age of dinosaurs 65 million years ago, have seen countless different kinds of life. This is a very spectacular life period.
Dinosaurs have ruled the earth for 160 million years, but they have not embarked on the path of intelligent evolution. You must know that in the big race of dinosaurs, there are also some smaller dinosaurs, and their brains are not small. But even so, these little dinosaurs did not evolve into wisdom in 160 million years.Because their genes have not undergone any mutations, just like human ancestors.
It can be seen that the birth of mankind has all kinds of coincidences. Otherwise, the long life of several billion years will not be the emergence of intelligent life like human beings. Taking the birth of man as an example, we can see that life may be universal in the universe, but whether life will evolve to the stage of intelligent life is not determined by time. It requires all kinds of coincidences, so other life planets Is there a coincidence like the earth?
In terms of the 93 billion light-years that humans can observe, the galaxy like the Milky Way is about 2 trillion, each galaxy has hundreds of billions of stars, and each star system There will be different numbers of planets. In the universe, there should be a large number of life planets, which is not doubtful at all. Therefore, the existence of the earth has no special meaning, it is just an ordinary planet.
However, it may be difficult to say whether the huge planet of life can give birth to a second intelligent life, intelligent civilization. It has been more than half a century since people left the earth to search for extraterrestrial civilization, but the universe we see is so lonely, until now, no trace of extraterrestrial civilization has been found.
Scientists have put forward various hypotheses about the fact that humans have not discovered alien civilizations, but after we learn about the coincidences of the birth of mankind, there may be another speculation, that is, the entire universe may only be the intelligent civilization . If so, the existence of human beings contains incomparable meaning.
Human beings are born from various coincidences, and coincidences may not be able to reappear in other galaxies. Therefore, humans may still be the only intelligent life in the universe. If this is the case, then the meaning of human existence will be infinitely improved,We are like a beacon in the dark universe, illuminating the future path of intelligent life in the universe, and providing a clear direction for their birth, evolution, and development.
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