Will mankind become extinct? Under what circumstances and in what way?

Dinosaurs that once crisscrossed the earth 10.60 billion years also disappeared into the dust of history because an asteroid with a diameter of10 km hit the earth. This cannot but warn mankind that worrying about the sky is not superfluous.

The age of the universe is at least 65.438+038 billion years, and the earth has been born for about 4.6 billion years. Humans have multiplied on the earth for millions of years, and the creatures on the earth have changed one after another. How long can humans last? I really didn't know that.

In the long river of human history, less than 1000 years can be called civilization period. It is only five thousand years since the birth of written language. Modern science began more than 400 years ago. Since the outbreak of the industrial revolution, human beings have developed rapidly in these 200 years. /kloc-the modern scientific revolution 0/00 years ago brought mankind into a new era. In this short 100 year, human science and technology have developed rapidly, and we have created more knowledge than ever before. It is hard to imagine what the world will be like in 500 years, what kind of civilization human beings will create and how far human beings can go.

Time has proved that nothing is eternal, and human beings may die one day. In what way will mankind become extinct? This can only be combined with the current scientific knowledge and bold speculation.

If mankind can go far enough, the most worrying thing is the disaster from outer space. For example, asteroids or comets hit the earth, distant gamma ray bursts in the depths of the universe, and solar super flares. As for those more distant things, we will not consider them, such as the sun will become a red giant in 5 billion years, and the collision between the Milky Way and Andromeda galaxy in more than 3 billion years.

Eggs can't be put in one basket. For safety and long-term sustainable development of mankind, interstellar migration is the only way. In the foreseeable future, humans will emigrate to the moon and Mars. The resources on the earth are limited, and one day they will not meet the needs of human development. We need to find other resources in the universe.

However, at present, what we should be worried about is the affairs on earth. All kinds of super natural disasters on the earth can casually return human beings to primitive society or even become extinct. For example, super earthquakes and volcanic eruptions caused by the movement of the earth's plates, as well as global climate and ecological disasters.

In addition, it is caused by human beings themselves, such as nuclear war and the abuse of genetic weapons, which may destroy human society. In ancient times, famine, plague and war were always the number one killers in human society. I believe that in the future, famine and plague can be solved by scientific and technological means, but it is difficult to predict by war alone. Who knows if World War III will happen, and if it does, how tragic it will be.

We might as well let go of the brain hole a little. Perhaps in the future, human beings will die at the hands of extraterrestrial intelligent life, or from black holes created by human beings themselves, or die with the decline of the universe.

There used to be a saying that "science is like a double-edged sword", which means there are both good and bad sides.

This is very strange. At any point, technology has shown amazing advantages, and people can't stop loving and pursuing her. Why are there so many headaches?

Without a comprehensive reflection on the human situation and even a subversive reflection on the status of human beings in nature, human beings will only fly forward endlessly.

I have a metaphor that social development is a marathon, but no one knows the end, let alone has been there. We humans firmly believe that the destination must be a beautiful tomorrow, and we believe it because everyone believes it.

So humans chased each other and ran to the end. Those who run in front still want to speed up, while those who run behind are more anxious. But what if the end of this long-distance race is the abyss? Who can guarantee that it is not?

A few molecules in human beings gave a little insignificant reminder. Although they are the greatest figures of mankind, although they have profound thoughts, it is precisely because they are so profound that no one can understand what they are saying. I don't understand, of course I don't care. Who will pay attention to the boring words that some people like to talk about?

Someone once said that human beings have never really solved any problems until today! It's "any" problem! We just leave the problems to the future, firmly believing that the future can be solved. Some even say, "Maybe in the future, today's problems will not exist."

For example, the problems of eating, hunting and choosing food are unstable and always hungry;

After farming and grazing, the food was stable, the population soared for the first time, and the population base increased, which caused a greater demand for food. However, natural and man-made disasters are hard to overcome, so a large number of people who starve to death actually start from a stable food source.

The industrial revolution brought about great economic development, and the looting of resources made the world crazy and the war escalated. It's still hard to stop until hundreds of millions of people get involved. We used to increase the power of weapons to deter others. We said, don't bully me, I have a good guy. If you push me again, we will die together, and no one wants to die, so we all restrained our emotions.

The cold war has not escalated into a nuclear war, and we humans are at ease again. We believe each other is rational, and we don't want everyone to die together. Finally, we can be happy without food and clothes. Wait, the economic imbalance has brought about the abnormal development of human society. Some people can enjoy endless happiness, while others can only watch. If they can't see, they will be more balanced. It's okay to lie to yourself behind closed doors, but it's a global village now. Therefore, "development is the last word" has become everyone's last word. After all, the size of the cake is limited, and no one wants a big cake;

After all, the earth's limited resources can't satisfy the desires of seven billion people. We turned our attention to outer space again. Americans once made an Apollo program. After countless investments, they found it too difficult, so it was more practical to plunder others. Now some people want to follow in the footsteps of the United States and continue this vision for a better tomorrow. Also, just because they can't do it doesn't necessarily mean that others can't do it. Whoever becomes first will have the happiest tomorrow. But has the actual problem of eating been solved? I don't think so

If you want to be bigger and stronger, you must expand planting, but once you expand planting, you can't guarantee the source of trafficking. Long-distance trafficking takes time, so you must pick fruits and vegetables before they are ripe. Of course, immaturity can't be sold. You can only use technology to ripen them in the process of selling. It's not that natural growth tastes bad and is not good for the human body, so it's not easy to sell. This has become an endless cycle. Without expanding planting, it is impossible to expand planting. Housewives nowadays are really difficult to serve. Without vegetables and fruits, they will not be satisfied. They are not satisfied with the unpalatable vegetables and fruits. They are expensive and are not satisfied with the delicious vegetables and fruits. What can we do? There is only one way, you earn money desperately and buy better and more expensive safe green food. When you earn more money, you will find that food is more expensive.

Today, the most ridiculous scene appears among the rich. Black humor is full of meaning! With a lot of money, you can't eat safe food, so some people grow their own vegetables, and some people use it as a gimmick to rent and sell farmland. You city people have money and leisure, and want to eat safe food, so come to the countryside and grow your own! Ha, ha, ha, we've made a U-turn, and we're back to the starting point.

There are more ridiculous and darker people with money and leisure. They even found that they couldn't eat more food. Eating too much is more dangerous and far more terrible than being hungry. So rich people dare not eat enough, so let's lose weight after eating enough! It turns out that eating enough has become a problem that needs to be discussed! I watched a program, and the guests were famous successful people. He said that whether you can control your appetite now is a criterion of success. If you can't control your appetite moderately, how can you succeed?

What a black humor! When I was a child, there was a swear word like this: you are full, full! Now the whole person is doing such strange behavior.

How did humans become extinct? I'm kidding, because human beings are full, they will eventually become extinct!

As a member of human beings, I hope that our human species can reproduce for a long time and forever. But for creatures living on the earth, there are too many uncertain factors on the earth that will lead to species extinction. As for how humans will become extinct, we can refer to the five mass extinctions in the history of the earth. Each of these extinction events befalls mankind, and mankind will perish.

Gamma rays emitted by supernovae

Let me briefly talk about five mass extinctions in the history of the earth. The first Great Extinction was called the Ordovician Great Extinction, which was 500 million years ago and lasted for 65 million years. In this extinction event, more than 85% species on the earth disappeared from the earth forever. Scientists have found that the chief culprit leading to the extinction of species on earth comes from distant space. A supernova exploded near the earth, and the gamma ray burst produced by the explosion hit the earth just right. It is these deadly cosmic rays that have led to drastic changes in the earth's environment and the extinction of life. Once the red Supergiant star, which is only 600 light-years away from the Earth, explodes, it may have a serious impact on life on the Earth, leading to the extinction of species.

Asteroids hit the earth.

Permian extinction is the most important extinction event. This extinction event occurred at the end of Permian 250 million years ago, and 90% of the species could not escape extinction. There are many reasons for Permian species extinction. Every cause is extremely fatal. Meteorite impact, climate change and volcanic eruption. Take the volcanic eruption in this period as an example. Thousands of kilometers of the earth's crust have been torn by volcanic lava, which has been erupting for nearly 8 million years.

The volcanic eruption beyond the mountain is not an alarmist. Scientists have found that the Yellowstone super volcano under Yellowstone National Park in the United States has reached the critical point of eruption. If the Yellowstone super volcano erupts, it will also be fatal to human beings.

nuclear war

In addition, there are many ways that may lead to human extinction. For example, an asteroid hit the earth 65 million years ago, which led to the extinction of dinosaurs and humans. In addition to threats from the universe and the earth, the cause of human extinction is likely to come from ourselves. Nuclear war and environmental pollution may also lead to human extinction.

In short, natural disasters can lead to human extinction, and man-made disasters can also lead to extinction. what do you think?

I really don't know this!

Judging from the known galaxies, the Milky Way and Andromeda will collide head-on in 4 billion years, and Andromeda is 1.6 times that of the Milky Way. By then, the solar system, including the earth, will be integrated into the new galaxy, and the integration process will not be broken, but will also be melted by the fusion process of two huge black holes.

From the perspective of the solar system, it has been confirmed that the sun will become a red giant in 5 billion years and eventually explode. In fact, 3-4 billion years later, before the collision of galaxies, the sun will start to heat up and expand, and the earth will first become a fireball, and then slowly merge into the sun and disappear completely.

According to the evolution of the earth, every 60 million years, there is a high probability that it will be hit by an asteroid with a diameter exceeding 10 km. Every impact will destroy the creatures that dominated the earth at that time, such as dinosaurs 60 million years ago. There is a high probability that such natural disasters will happen again in the next tens of thousands of years.

Judging from the glacial flood period, all kinds of ancient books and records mentioned flood period and ice age, which is not a legend. It is scientifically confirmed that the inclination of the earth's rotation axis is between 22.1and 24.5, and the period is 4 1 0,000 years. At present, the inclination is 23 26' 21.448 ",which is decreasing. That is to say, when the earth is at the maximum inclination angle of 24.5, most of the earth is farthest from the sun and will enter the Millennium extreme ice age; When the maximum dip angle is 22. 1, it will enter the Millennium flood era. At present, the dip angle is between the maximum dip angle and the minimum dip angle, which is close to the flood age Therefore, global warming is the inevitable result of the evolution of the earth and cannot be stopped. After about 20000 years, most of the land on the earth will become oceans. Therefore, far-sighted scientists and superhuman beings, such as Hawking and Musk, say that only when humans leave the earth and realize large-scale interstellar migration will humans have a chance to survive, such as avoiding the flood period after 20,000 years and the asteroid impact within 60 million years. Musk is already on the move. Although his personal strength is limited, he has taken a huge step. 10 years later, if Musk can really land on Mars, the probability of human beings getting rid of extinction will be greatly increased. It is expected that mankind will cherish the present beautiful life, constantly strive to expand space and strive for future happiness.

Will mankind become extinct?

I think: mankind will perish, but "God" allows mankind to live in the universe for a longer time. There are several reasons: 1. At present, human beings are regarded by many people as the most civilized and intelligent life species, but I don't think so. The reason is that the smarter and greedier human beings are, the more they enjoy themselves and ride on others' heads. So today's world is a life-and-death struggle between the country and the people, population expansion, environmental deterioration, nuclear war and so on. The earth can't escape the curse of the sun. One day, the sun will attract the earth back and make it deviate from the "cosmic lifeline temperature" of life until it is completely destroyed by the sun. The vast galaxy is like a huge whirlpool, and the silver center in the center of the whirlpool is a huge black hole. Maybe one day the whole solar system will be involved in the center of this galactic black hole. 4. The influence of alien planets on the earth. If a considerable celestial body collides with the earth, the earth may break into pieces, or deviate from its original orbit, or cause earthquakes, tsunamis, volcanoes, plagues and so on.

If mankind will not be extinct, then the global human beings should unite and make the most directional, firm and long-term grand plans and measures to save mankind for thousands of years. 1, transforming the earth into a super spaceship, just like driving us to drive a car and a plane. 2. Build more spaceships, rush out of the earth to transform Mars, rush out of the solar system and rush out of the Milky Way. Only in this way can mankind never be destroyed by the universe.

In what way will the future of mankind end?

I thought about this topic. Man is progressive. Before the conditions for survival on the earth are gone, human beings may have lived on other planets long ago, leaving the seeds of epigenetic development. Of course, it is impossible for everyone to escape. Gan, Kun, solitary yin and solitary yang, that is, boys and girls sent to the earth by aliens, are protected by three pairs of adults. What our predecessors can do, what our descendants can do,

The key question is the end of mankind? In other ways, human beings may have a way to overcome it, but we don't know if the solar energy will run out. Inventing something similar to solar energy instead of nothing should be the key. If you can't do it, it's hard to say. There is an old saying that you can finish.

Everything comes and goes, and human beings are no exception. Even the universe will be destroyed one day. The dinosaurs that once ruled the earth10.7 billion years died out overnight. In the face of nature, human power is still very small.

Since human beings will die one day, will they die in various ways? The most optimistic one is that mankind will perish with the demise of the universe, and mankind can continue until the day when the universe is destroyed. When will the universe perish? No matter which day the universe will die, at least it won't come soon. In addition to mutually assured destruction with the universe, I personally think there are several other possibilities:

Humans were destroyed by alien civilization. Speaking of aliens, it seems to be the embodiment of high technology. Indeed, if there are alien civilizations coming to the earth at present, there is no doubt that their scientific and technological level is much higher than that of the people on earth. Because of this, we have no resistance in front of aliens. If aliens come to the earth from the beginning with the purpose of occupying the earth, then they will probably kill human beings, and then we will be trampled like ants.

Asteroids hit the earth. Although how dinosaurs died out is still inconclusive, most scientists believe that the extinction of dinosaurs originated from an asteroid with a diameter of 10 km hitting the earth, which aroused dust all over the sky and covered the sky. The earth was shrouded in haze for several months, and plants withered one after another without sufficient sunlight, resulting in a large number of herbivorous dinosaurs starved to death due to lack of food, which in turn affected carnivorous dinosaurs. At the same time, the oxygen content on the earth has also been greatly reduced, and dinosaurs, including many other creatures, have become extinct in large numbers. If the same asteroid hits the earth now, human beings will surely suffer heavy casualties, and whether it will be extinct depends on fate.

Global nuclear war. Nuclear weapon is a very powerful weapon. According to statistics, all the nuclear bombs produced by human beings are enough to destroy the earth seven times. At present, the international political situation is changing, and the relations between some countries are very tense. If one of them starts a nuclear strike first, it will be a disaster all over the world. If man makes a nuclear bomb but doesn't use it properly, he is likely to dig his own grave.

Humans will not exist forever, and everything is immortal. Sooner or later, mankind will also face the problem of extinction, which is also the fate of all things. But human beings are different from other creatures, because they have a high degree of wisdom. Compared with other creatures, human beings have stronger survival ability. Not surprisingly, human beings will continue to exist for a long time.

Please remove the word "horse", and mankind will be extinct!

The BBC's new sci-fi documentary Planet explains the formation and demise of the solar system. Although it may not be realized, the law of the development of the universe is certain. In recent decades, nearly 2000 neutron stars have been discovered, which shows that the universe is dominated by natural laws, and the sun will explode one day, engulfing Mercury and killing all living things on earth.

Of course, the premise of this is that human beings can live smoothly in the previous 5 billion years. But the reality is much more cruel than we thought. Since the human industrial revolution, the number of species extinction on the earth has reached millions. Although species extinction is the natural law of the earth, it is obvious that the existence of human beings is accelerating this process. Similarly, man himself is one of thousands of creatures on the earth. If there is another mass extinction event on the earth, we can't guarantee whether mankind can spend it safely.

In addition, there is another reason. With the development of human civilization, the education level of human beings is getting higher and higher, which has brought about the progress of science and technology and celebrities, but it has also brought about the reduction of human demand for reproduction. For example, in our country, many people choose not to have children or have one because of the high investment in children's education. In developed countries in Europe and America, many women have given up childbearing, and even some countries have come forward to reward family childbearing.

In a few thousand years, we can't say for sure how far technology will develop, but the number of human beings will definitely decrease. When the number of human beings is reduced to be insufficient to support the continued vigorous development of human species, perhaps human beings will begin to go extinct.

In what way will mankind become extinct? Disease, degeneration. The earth is relatively stable. As long as there is no attack from foreign celestial bodies, the earth will still exist for hundreds of millions of years, and it will take hundreds of millions of years for the sun to become a red giant in its heyday. War, even nuclear war, cannot completely destroy mankind. So there is only one possibility: disease. This is an immune system disease.

Now we are faced with many incurable diseases, such as advanced cancer, leukemia, AIDS, diabetes and so on. Prove that mankind has entered the Middle Ages. As time goes on, the human species will enter old age and there will be more strange diseases. All human efforts can only temporarily alleviate the incidence of diseases, but can't stop the self-extinction caused by self-degradation of species. Any species has a life cycle, even if the earth does not make any changes, human beings will not exist forever. Like mammoths, did dinosaurs change their natural environment and become extinct? Or will the life cycle come to an end?

A vivid example is the giant panda. Pandas used to eat meat with canine teeth, but now eating bamboo is actually a kind of degeneration. Panda cubs are just a newly developed embryo, and it is very difficult to raise them, which also leads to the panda being an endangered species.

Humans will also encounter the same problem as giant pandas: degradation. Now there has been infertility, and human reproductive capacity is gradually declining. The natural degradation of human species and the appearance of various strange diseases will eventually change from quantitative change to qualitative change, and human beings will suddenly disappear like dinosaurs at some time in the future.