How will the end of the world come? After listening to the explanation of the scientists, I understand

I think many friends still remember the Mayan prophecy of the end of the world in 2012. At that time, many people made a lot of preparations for it. Some rich people built ark, some spent money desperately. Xiaobian also remembered that there was a young man who was working outside. During the end of the world in 2012, he spent all the more than 100000 yuan he had saved from working for several years, and then waited for the end of the world The arrival of the new year. But the end did not come, and the world was peaceful.

After 2012, there are fewer people talking about the end of the world. Many people think that the Mayan prophecy is not correct. Will the earth be so stable and safe all the time, and there will not be the end of the world? In fact, in the 4.6 billion years since the birth of the earth, the scene of the end of the world has happened many times, each time causing the mass extinction of the earth. The most recent one is the extinction of dinosaurs 65 million years ago. At that time, 80% of all living things on earth were extinct except dinosaurs.

Although the earth has been in peace for tens of thousands of years, it does not mean that there will not be the end of the world in the future. Maybe thousands of years later, mankind may really face the end of the world. The end of the world may appear in the following ways. Scientists believe that studying these end of the world is not necessarily a bad thing, and it can let mankind take precautions in advance.

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An asteroid from outer space hit the Earth 65 million years ago, causing the extinction of dinosaurs, and asteroids have always been a potential threat to the earth. In the solar system, there is an asteroid belt, where there are countless asteroids, these asteroids from time to time out of orbit toward other planets. Those craters on Mars are caused by asteroid impact. Some scientists believe that Mars was once a beautiful living planet like the earth, and later it may have been destroyed by asteroid impact.

There are many craters on the moon, the natural satellite of the earth. We can see how many times the moon has experienced meteorite impacts. The earth may be lucky, the probability of asteroid impact is small, life can continue until now. But no matter how small the probability is, there will be an asteroid impact one day. If there is another asteroid impact, the earth may face another mass extinction. Therefore, scientists are now actively studying the potential threat of asteroids. Perhaps when human beings have the ability to destroy asteroids in the future, they will no longer be afraid of asteroid impact on the earth.

The survival of all things on earth cannot do without the sun. The sun is a star, which is constantly undergoing nuclear fusion, and then radiates light and heat to other planets. The sun’s hydrogen will burn out one day. Scientists say that in 7.5 billion years, our sun will explode and collapse due to the depletion of fuel. The outer part of the sun will expand rapidly and devour all the planets in the solar system, including the earth.

Maybe many people say that there are still 7.5 billion years left before the end of the sun’s life. It’s too far away for us. After 7.5 billion years, human beings still don’t know whether it exists? If human beings still exist after 7.5 billion, human science and technology at that time would have been very developed, and they might have already become the advanced civilization of the universe. There would be countless living planets for human beings. At that time, the solar system would not survive, and they could migrate to other galaxies without worrying about the death of the sun.

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The end of the world that may lead to in the future is nuclear war. Although all countries in the world are trying their best to control the development of nuclear weapons, no country is really willing to decompose all nuclear weapons. Now the world’s nuclear stockpile is enough to blow up the earth several times. Once a world war breaks out again in the future due to the competition for energy, no one will illegally guarantee that someone will use nuclear weapons in the end. There is no reason for war. It is not surprising that a country will detonate a nuclear bomb when it comes to its life and death.

In recent years, the development of artificial intelligence is very fast. In the future, artificial intelligence is bound to replace human beings in many ways. In the early stage, artificial intelligence may serve human beings without any thinking and feelings. However, with the generation by generation of artificial intelligence, the possibility of the birth of thinking and feelings of artificial intelligence will become greater. Once artificial intelligence has feelings, it is new Life and new civilization are certainly not willing to be controlled by human beings. When we rise up to resist, human beings may not be able to beat AI. To be more extreme, when AI or human beings reach the time of life and death, they will detonate the nuclear bomb, and the end of the world will come.

Since the exploration of space, human beings have been looking for aliens. Although they have not been found up to now, scientists never doubt the existence of aliens. The civilization level of alien civilization is also different. If the technology of alien civilization has developed for tens of thousands of years more than that of human beings, once aliens invade the earth, human beings have no resistance at all. This is the civilization gap. A very simple example is that the modern army can sweep through thousands of years ago with modern weapons. When the weapons are too powerful, the quantity can’t make up for it.

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The above factors that may lead to the end of the world, the probability of other occurrence is very small, even smaller than the probability of buying lottery tickets, we do not need to be bold, but human beings can not take it lightly. Studying these factors can not only prevent the possible end of the world, but also speed up the pace of human civilization and science and technology. Only when science and technology are developed and have the strength, can we cope with one There is no danger of disaster.

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