How to avoid human extinction on the earth?

I saw someone ask: Will there be humans on the earth in 10,000 years?

It is certain that in the next 10,000 years, unless there is an unexplained natural upheaval like a supernova explosion, almost no external force can destroy mankind. Only human beings can destroy human beings. Due to selfish and greedy nature, human beings not only wantonly destroyed the ecological environment, but also launched a bitter war, and endless powerful weapon inventions emerged one after another, and even possessed Conan's nuclear weapons. As long as a big country launches a nuclear missile with a large equivalent, then all mankind will accept the fate of collective destruction in the next nuclear war. Why should it last for ten thousand years?

When physicist Fermi looked up at the starry sky in the last century, he suddenly put forward a creepy hypothesis. Why is the universe we observe so quiet? The universe is so long and crowded, assuming that there is no alien life, it is a waste of time, but theoretically it should be everywhere and has developed into an alien civilization that can colonize the whole galaxy. Why have we never found any clues about their existence? Where is their civilized hometown? Will it disappear completely because of killing each other? So, is it necessary for human beings to destroy themselves? Is the destination of mankind wiped out in a world-class war?

So, why does human society have to explode? This is because the material quality on the earth is generally stable and the resources are extremely limited, while the human demand for resources is constantly improving. In the early days of Qianlong in China, a farmer living in Shaanxi could live for a year with one or two pieces of silver. In modern times, the demand for resources increased by 3500 times compared with the Qianlong period. And what about the future? Maybe the newlyweds will go to Mars for their honeymoon. The qualitative change of quality of life means that the earth's resources are squeezed. Although science and technology can continuously improve people's living standards, it needs massive resources to support the improvement, and the more developed science and technology, the more severe the consumption of resources. Therefore, in less than 10,000 years, insatiable human beings will drain the earth dry. Resource crisis is the biggest crisis facing mankind. If human engineers can build a "Dyson sphere" that can wrap the whole sun (which needs to tear down all the planets in the solar system and form them with their materials), the energy crisis may be alleviated for some time. However, with the progress of science and technology at any time, there will probably not be enough "dyson sphere".

Some science fiction writers suggest that it may be possible to develop a virtual world controlled by electronic computers, in which all human beings digitize themselves and collectively live in the virtual world of computers. In this virtual world, resources are almost endless, everything is available, and even everyone can have a solar system. Computers can change physical coefficients and mathematical laws according to human needs, such as making the speed of light infinite or reducing the influence of gravity. Moreover, human beings can hardly see that they are programs in the virtual world, and the fidelity is infinitely high. In this case, the consumption of external resources will be reduced to a very low level. Only electricity is needed to maintain a huge virtual world. The more electricity there is, the more the virtual world will upgrade and evolve. At that time, the whole computer system can be moved very close to the sun, and the photoelectric conversion device can be used to replenish energy for the computer. Moreover, this demand for energy can definitely last for a long time, which is tens of thousands of times stronger than human consumption of fossil energy in the real world. In this way, it is easy to continue human civilization for 6.5438+0 million years. In fact, this is a very worthwhile road.

If mankind refuses to digitize the whole human society under the consideration of a philosophical world outlook, it will face the constraints and challenges of the real world. In this case, in the face of the completely inevitable threat of war, in order to avoid "putting eggs in one basket", scholars imagine the grand project of interstellar migration in the future, that is, human beings will send one interstellar colonial spaceship after another, and through the hard work of at least hundreds of generations, they will gradually build a huge space city, and it will take/kloc-0.0 million years or even millions of years to transform the natural environment of extraterrestrial planets and spread them in every corner of the Milky Way. Once the earth is completely destroyed by war, then the human population can continue.

It is impossible to transform an extraterrestrial planet into a natural environment that is almost exactly the same as the earth, because we don't have so many resources for transformation. Scientists have calculated that it will take 654.38+05 million years to transform the surface of Mars into 90% similar to the surface of the Earth, and all the resources of the Earth will be consumed. Therefore, the best way is to transform human beings with biological gene technology, so that the descendants of human beings can live directly on the planet as soon as they are born on the extraterrestrial planet. For example, the average temperature on the earth is around 20 degrees Celsius, but the descendants of human beings are likely to be able to directly adapt to living in the surface environment with an average of 460 degrees Celsius. This requires transforming carbon-based life into silicon-based life. Because silicon-based life likes high temperature natural environment. Even human beings can live directly on a gaseous planet like Saturn and become "balloon creatures" floating in the helium atmosphere. The scale of these changes will be very large, and the alienation of human beings will be inevitable. Maybe one day, when the descendants of two earthlings meet, they will find that there is reproductive isolation between them, and the other party has become unrecognizable, or even a completely different life. In short, the interstellar migration plan is very difficult. This is a road full of thorns and dangers. But the advantage is that once the goal is achieved, it is not easy for human beings as a population to become extinct collectively.

However, these are only distant ideas at present. Not to mention whether it can be realized in technology and materials, has human beings brought their own destruction before this grand goal is realized?

In fact, everything is evolving endlessly. Civilization is not in evolution. Only from the Stone Age can human beings truly have civilization. With their hands and clever minds, they gradually conquered the whole world, forged metals, built skyscrapers, transformed the genes of crops, and even sent themselves into dangerous space ... This is a major symbol of human civilization, which can generally be called "material productivity civilization". But why can't human society continue to evolve a more noble civilization? For example: moral civilization. This moral civilization will be a brand-new civilization.

If moral civilization becomes a reality, human beings all over the world will join hands with rational forces, abandon the barriers between regions and cultures, and automatically eliminate all dangerous factors that endanger the continuation of human beings. By then, mankind will live a more elegant life on this blue ball.

Author: Questioner