Earth is a planet of life, the most primitive simple life was born in the ocean 4 billion years old. After a long period of evolution, life has become richer and more complicated. More than 500 million years ago, some creatures in the ocean migrated to land in order to survive and began the evolution from marine creatures to terrestrial creatures. After the birth of
, terrestrial creatures evolved at an amazing speed. Although the earth has experienced 5 mass extinction in more than 500 million years, the evolution of terrestrial organisms is getting faster and faster. Until millions of years ago, when humans were born, humans followed an evolutionary path different from other creatures. Animals take the road of power, and humans take the road of wisdom.
With the help of wisdom, weaker humans began to grow and became the overlords of the earth, forming a human civilization more than 5,000 years ago. The formation of civilization has enabled human beings to develop faster and embarked on the path of scientific development hundreds of years ago.
With the help of science, human civilization finally ushered in a glorious moment. Soon we walked out of the earth and began to explore the universe . Human beings have not existed for a long time. Compared with the dinosaurs that ruled the earth for 160 million years, 65 million years ago, it is a far cry. But because human beings have wisdom, we will think and know, and constantly explore the mysteries of the world through thinking and knowing.
Although human beings only truly understand the world after entering the age of technology, they have been exploring and thinking about the world for tens of thousands of years. In ancient times, humans thought about the starry sky, the nature of the world, and humans themselves. However, there was no scientific guidance at the time, and many puzzles were given the attributes of God.
Among the many confusions, there is a question that has been pondered by ancients and modern scientists, that is, what is the meaning of human existence? In fact, the ancients were not as persistent as modern scientists for this kind of confusion. In ancient times, many people believed in the existence of gods. According to myths, human beings were created by God, so the meaning of human existence is not worth considering.
But after human beings enter the scientific age, we all know that there is no God in this world, and science can answer the mysterious phenomena that ancient humans did not understand. We understand that man is not created by God, but an evolutionary evolution of life. The primitive and simple life evolved into humans step by step. Many people may say that researching and exploring the meaning of human existence is a completely boring topic. Is it really? of course not. The more advanced the technology, the more we think about the meaning of human existence. Especially when human beings have already stepped out of the earth and have made no progress in exploring extraterrestrial life and extraterrestrial civilization.
When human beings walk out of the earth and see the vast universe, people will think: Does alien civilization exist? The more you understand the vastness of the universe, the more you will think that the probability of an alien civilization is basically 100%. In addition, judging from the 13.8 billion years of the universe, we can also think that if humans can exist, then alien civilizations should also exist. In different cosmic ages, there may be a large number of life planets and a large number of intelligent civilizations. If this is the case for
, then it is not surprising that there is an intelligent civilization in the universe that is 100 million years, a billion years, or even longer than human civilization. Once a smart civilization enters the age of technology, its development speed will be very fast. It only takes more than 100 years for human beings to get out of the earth. Then a human being can only imagine how powerful a civilization they will be if they develop to 100 million years and 1 billion years. A civilization as powerful as
should be able to navigate the stars, and the universe may be just their back garden. If this is the case, then the universe should be very lively, the earth should already have many advanced civilizations to visit, and we should be able to get in touch with alien civilizations as soon as possible.
However, this is not the case. The universe we see is very lonely. So far, no alien life or alien civilization has been discovered. In theory, the universe should be very lively and intelligent civilization is everywhere, but the reality is that we cannot see any alien civilization. Where did you go?
Scientists have given various conjectures that humans have not discovered alien civilizations, such as the theory of cosmic laboratory and virtual universe. These theories sound very reasonable, but in addition to these speculations, we have to think about another possibility, that is, the entire universe has only the earth as a living planet and only humans as an intelligent civilization..
If the above speculation becomes reality, then we have to think, what is the meaning of human existence? If the number of intelligent civilizations in this universe is very common, and human beings are not unique, then it is meaningless to discuss the meaning of human existence.
However, once the future proves that human beings are the only intelligent civilization in the universe, the significance of human existence may far exceed our imagination. So what is the mystery behind this meaning? Let's first take a look at the meaning of human existence to the earth? We must know that there is only one intelligent civilization on the earth, and the emergence of mankind is of great significance to the earth.
As we all know, this universe, whether it is stars or planets, basically cannot exist forever. After the star runs out of fuel, it will enter the end of the explosion and eventually evolve into a white dwarf star , a neutron star or a black hole. When a star is destroyed, the planets near it will naturally be spared, and even the entire galaxy will follow.
The sun is also a star, with a lifespan of about 10 billion years. When the life of the sun comes to an end, the earth and the entire solar system may be destroyed. Even if the solar system can be preserved, the earth, as a habitable zone, will be swallowed by its orbit during the solar expansion and disappear into the universe.
This is the natural destiny of the earth. Without humans, the earth could exist for another 5 billion years at most. However, the emergence of mankind may change the fate of the earth. We can go to the starry sky through technology, so the power of technology may take the earth away from the solar system to other galaxies. Therefore, human beings can bring the mother star into the interstellar space , and the earth can be preserved for a longer time, completely changing the destiny.
Similarly, the universe is unlikely to be eternal, and expansion may not last forever. One day, the universe will come to an end. How long will it take? We do not yet know that if the life of the universe ends, then the entire universe will disappear or return to zero again and evolve again.
This is the destiny of the universe under normal circumstances, but the birth of mankind may change the destiny of the future universe. The reason is simple, because mankind has mastered the immense power of science, and science is the highest law above the universe. Through science, we can understand everything in the universe and master everything in the universe. Nature will also know what ultimate destiny the universe will face in the future.
We have the ultimate power of science, so we can use it to adjust the operation of the universe. This can greatly increase the life of the universe, and even make the universe completely free from the fate of destruction and truly reach eternity. If there are only humans in the universe, then the meaning of our existence may be to change the future destiny of the universe.
