Although it has only been a few hundred years since mankind has entered the era of science and technology, it has made brilliant achievements. The achievement of these brilliant scientific and technological achievements is inseparable from the contributions of those great scientists. Such as Newton, Einstein, Tesla, etc.
In every era, some great scientists will appear. The last century was the most glorious era in the development of human science and technology. A great scientist like Einstein was born. In modern times, some famous scientists have also emerged, such as Hawking, who is known to people all over the world.
With a disabled body, Hawking has created brilliance one after another on the road of science. His brief history of time has become one of the best-selling popular science books in the world. At the same time, Hawking also proposed some very great scientific theories, such as the black hole area theorem and Hawking radiation theory. It can be said that Hawking is one of the greatest scientists of the 21st century so far, and he is also known as one day after Einstein.
A scientific master like Hawking has a very important scientific status in the world. Although he has left us, his great theories are still guiding us forward. I believe that many friends’ knowledge of Hawking comes to a large extent from his predictions. In the history of science, every great scientist has a hobby, which is to predict the future.
As the greatest scientist in modern times, Einstein had many predictions during his lifetime, such as gravitational waves, black holes, and wormholes. Although he has many predictions, no one dares to underestimate these predictions. An important reason is that the success rate of his predictions is too high. Up to the goal, Einstein’s predictions were basically fulfilled except for a few that could not be proved.
This is also the reason why Einstein’s prediction is highly valued in the scientific community. As a modern scientific master, Hawking naturally has some scientific predictions. Hawking’s predictions are basically worries about the future of mankind. Hawking once warned: human beings should leave the earth as soon as possible. Why is this?
I believe many friends know that Hawking once had such a warning. Why did he warn humans to leave the earth as soon as possible? Could the earth be destroyed in the future? Many people may think that Hawking’s warning is completely redundant. Human beings have lived on the earth for millions of years, and there is no problem in continuing to survive for a long time. Is this really the case?
In fact, Hawking’s warning is not completely unfounded. With the continuous advancement of human technology, more and more people are beginning to realize that the future of mankind will indeed face many crises and difficulties. Let’s take the earth’s ecological environment as an example. I believe everyone knows that after mankind has entered the industrial age, although brilliant technological progress has been brought about, the ecological environment is also rapidly deteriorating.
The biggest environmental problem we are facing now is the rapid global warming. I believe everyone is aware of the greenhouse effect. It is caused by the continuous increase of carbon dioxide and other greenhouse gases, and the content of carbon dioxide in the atmosphere can be said to continue to hit new highs every year. These increased greenhouse gases mainly come from industrial production and the application of scientific and technological products.
It can be said that as long as human industry continues to develop and fossil fuels continue to be used, carbon dioxide emissions will be inevitable, and the trend of increasing greenhouse effect cannot be stopped. This is an endless loop that is difficult to change. Some people may say that when humans develop controllable nuclear fusion, then fossil fuels will withdraw from the stage of history. At that time, there will be no obvious pollution from industrial development.
This is indeed the case. Once controlled nuclear fusion is achieved, the pollution of fossil fuels will stop. But is controlled nuclear fusion so easy to achieve? As early as 50 years ago, scientists predicted that controllable nuclear fusion would be realized in 50 years. But now that 50 years have passed, scientists dare not make bold claims that nuclear fusion can replace fossil fuels in 50 years.
Because scientists also understand that it is a bit unrealistic for humans to achieve controlled nuclear fusion in 50 years. This shows how difficult it is to realize this great energy technology, even if it is given to mankind for a hundred years, it may not be realized. In a hundred years, no one knows how much the earth’s ecological environment will deteriorate.
If the current global warming trend continues, 100 years later, the global glaciers may melt. At that time, the sea level will rise by 70 meters and a large amount of land will disappear. At the same time, ancient bacteria and viruses have continuously recovered from the permafrost, bringing unknown disasters to the ecology and life of the earth. Even if we do better in environmental protection in the next hundred years, the trend of the earth’s temperature rising is likely to be difficult to change.
The reason is that the continuous warming of the earth is not only a cause of carbon dioxide brought by industrial production, but also other irresistible factors. For example, the brightness of the sun is getting higher year by year, and the sunlight received by the earth will continue to increase. Therefore, the future warming trend of the earth is difficult to change. When the temperature of the earth rises to a certain level, the ecology will collapse. At that time, life on the earth will usher in mass extinction. Spared.
In addition to the possible complete collapse of the earth’s ecological environment in the future, various risks from outside the earth have always existed, such as asteroid impact and alien civilization invasion. Let’s take an asteroid hitting the earth as an example. Although this is a very small probability, once it happens, it will usher in a terrible mass extinction event. 65 million years ago, the asteroid hit the earth and wiped out the then overlord dinosaur.
If another huge asteroid hits the earth in the future, and we cannot effectively intercept it at that time, then the fate that awaits mankind will be the same as that of dinosaurs. Even if asteroids cannot threaten mankind in the future, there is still another risk that may end mankind, and that is the invasion of alien civilization.
I believe that after more than half a century, human beings have continuously improved their understanding of the universe, and there is no longer any doubt about alien civilization. Although we have not yet found any shadow of alien civilization, if there is no alien civilization in the vast universe, I believe no one will believe it. The existence of human beings is actually the best evidence of the existence of alien civilization.
The main reason why we can’t find it is that the universe is too vast, and the distance between civilization and civilization ranges from a few light-years to more than millions of light-years. Without the ability of interstellar navigation, it is impossible for us to find each other. Once an advanced civilization far stronger than mankind discovers the earth and mankind in the future, if they come with malicious intent, then both the earth and mankind may come to an end.
Therefore, whether it is considered from the deterioration of the earth’s ecological environment or the various dangers that may arise in the multi-universe, human beings should get rid of the shackles of the earth as soon as possible, leave the earth, and sow the seeds of human civilization to all corners of the universe. Only when we set our goal on the stars and the sea, can human civilization be truly safe and continue to develop.
Even in the future, the earth and solar system will encounter devastating disasters, the seeds of human civilization can continue to multiply on other galaxies and planets. This is the path human civilization has to take. From this we can also see that Hawking’s warning is completely correct. He is prophesying from the perspective of the future of human civilization.