When will mankind become extinct?

Stephen hawking, a famous physicist, made another astonishing remark in an interview with BigThink, a famous American intellectual video sharing website, saying that the earth will be destroyed within 200 years, and there is only one way for human beings to survive: emigrate to other planets.

Hawking said that if human beings want to continue, they must emigrate to Mars or other planets, and the earth will die sooner or later. As for this time limit, Hawking predicted: two centuries.

Hawking said: "mankind has entered an increasingly dangerous period, and we have experienced many life-and-death events." Due to the genetic code of' selfishness and greed' carried in human genes, human beings are plundering the earth day by day, and resources are being exhausted little by little. Humans can't put all their eggs in one basket, so they can't bet on one planet. "

However, how to travel to other planets? Scientists estimate that it will take 50,000 years to reach the nearest habitable planet if a chemical fuel plane is used. If we want to emigrate within the life of human beings, we must develop aircraft close to the speed of light, and at the same time, let the people in the cabin not continue to resist all kinds of radiation from outer space during the flight.

The true scientific spirit is the observation and thinking caused by the amazing mentality and curiosity of all things in the universe, not the certainty itself, nor is it a rigid, realistic and unquestionable synonym. Some people even think that the future science is "the art of thinking", and science and art achieve the same goal through different routes.

If there were aliens, what would they be like? According to the inference of the famous physicist Stephen Hawking, the program of National Geographic is to use computers to draw the living conditions of "alien neighbors". This is the first time that Hawking has shown the world his imaginary outer space creatures after warning that "human beings should never contact with alien creatures".

Originally, this was just a small news, which aroused the public's curiosity at most. However, what is interesting is the reaction of some netizens in China: they scoff at Hawking's whimsy and even think that this fantasy is the entertainment product of novelists. Hawking is a bit boring to do so.

That's the contrast. We are a very realistic country. As long as it has nothing to do with real development and social activities, it is only imagination, entertainment and killing time, which is something that teenagers will play. It seems that a famous teacher needs to do something serious to deserve his qualifications. The result is exactly the same. Let's recall those scientists who are active in the public eye in China, but all the news related to them, good or bad, are basically serious business. A well-known figure who was labeled as an academician of a certain academy announced to the media with great fanfare which alien species he fantasized about. Like a joke, he would be dismissed as doing nothing. However, as a world-famous media, National Geographic magazine did the same, and as a world-famous scientist, Hawking did the same, without any uncomfortable feeling.

What's the problem?

The argument that "science is inseparable from imagination, and imagination is very important" has existed for a long time in China, which belongs to the conventional proposition of argumentative writing in middle schools. In other words, a child can cite Einstein's love of playing the violin as an example to illustrate the importance of imagination. As long as adults think about it a little, they can understand that many scientific theories, scientific concepts and scientific hypotheses are based on free imagination and the experience of future generations. Imagination is the key to invention, and no one will deny this view. However, after the test of the Hawking incident, we can only feel that a set of deep-rooted scientific attitudes and rules in our minds really do not pay attention to imagination.

Especially we are not lacking in imagination. As long as we look at the spoof videos and creative cartoons of netizens, as well as the original blog forums and life concepts, we have to admit that the innovative ability of young people is no less than Hawking's "whimsy". The root of the problem is that even with rich imagination and innovative ability, it is often regarded as idle pastime, which is obviously not at the same level as serious scientific research and down-to-earth efforts. In other words, it's not that our imagination is out of order, but that some judgment mechanisms are a little biased.

First of all, because many people always put performance and practicality first. Research that does not see results in a short period of time is unsustainable. Inventions with "application prospects" are more respected than products that stay in the "imagination" stage. Perhaps, this is the inevitable impetuous and utilitarian supremacy in the period of accelerated development of social transformation.

Secondly, because our understanding of "science" is too narrow. What is science? Most people can list a bunch of direct equations in their minds: science = facts = logical rigor = irrefutable = certainty. But looking back at the history of scientific development in the west, the answer is not so simple.

In the17th and18th centuries, science was a tool for people to conquer nature, so in modern society, mechanical mechanics dominated. /kloc-after the 0/9th century, scientists' interest shifted from technology application to knowledge theory system and empirical research. Therefore, the idealistic view of science holds that the purpose of science is to pursue objective truth. The job of scientists is to put forward hypotheses, foresee facts and verify theories.

Since the 20th century, the modern scientific spirit and humanistic spirit have gradually merged, and the study of nature and the study of human beings have begun to be interrelated. Quantum mechanics especially puzzles scientists. "Schrodinger's cat", even Hawking himself shouted a headache. Schrodinger himself sarcastically said: According to the explanation of quantum mechanics, the cat in the box is in a "dead-alive superposition state"-both dead and alive! Only by opening the box and taking a look at the cat can it decide its life and death. This is contrary to our daily experience, because the daily experience is that no matter whether the box is opened or not, the cat is dead and alive. In order to better explain the Schrodinger equation, one explanation provided by later generations is that there are "two worlds that can evolve independently", because each world is real because of different choices. This is incredible for science that has always paid attention to deterministic answers. Therefore, the debate between the pros and cons has not yet reached a consensus.

At one time, everyone thought that human's explanation of the physical world had come to an end, and all that remained was further precision and correction. The emergence of quantum mechanics is called "dark clouds" in the clear sky of Wan Li's classical physics. In traditional science, the certainty, accuracy and inevitability of absoluteness are influenced by uncertainty, fuzziness and contingency. The universe is far from being as simple, clear and easy to explain as imagined in the past. Similarly, science itself is in the process of being overthrown, reconstructed and overthrown.

In fact, all human inventions, whether science or art, theorems or culture, are the ultimate questions about the universe, life and the meaning of life. This doubt obviously includes both the scientific system obtained by rational observation and the perceptual value aesthetics-humanistic system. In this sense, imagine the existence of alien creatures, study the human genetic map, write better music and so on. They are all on the same spiritual level, exploring the nature of the world and torturing the true meaning of life, and there is no distinction between high and low.

I hope this answer will satisfy you.

Maya's words have no scientific basis.

I remember in a video, after 20 12 interview with Maya elders, the earth and mankind will enter a new era of "galactic assimilation" The ancient Mayans predicted this irresistible luck and left a prophecy to enlighten those who can witness this great historical moment. Life will be renewed, and actively assimilating the characteristics of the universe is an opportunity to assimilate the Milky Way.

According to McKenna's "time period" theory, we can see that after 20 12, the "time period" is shrinking. In other words, everything that constitutes our material world will become more and more microscopic, which is what he predicted will happen after the earth and human beings are assimilated by the "Milky Way". The more microscopic the material particles in the universe, the finer the particles on the purified earth should be. However, assimilating this ancient galactic glory is beyond the imagination of human thinking, because human science today is very limited. And everything bit by bit is just a little enlightenment on our way to know the truth of the universe. We know from the Mayan prophecy that the earth will assimilate the Milky Way.

In 20 12, the earth will go out of the "earth renewal period" predicted by Maya and completely assimilate the Milky Way. The wheel of history is constantly running. Can people living in this period seize the fleeting mystery in the quietly passing time?

According to Maya's prediction, the earth we live in now is in the fifth solar year, which will end on February 22, 20 12 12. So far, the sun belongs only to the Middle Ages.

In order to be truly extinct, hundreds of millions of years later. . We're all gone.