If humans find low-level civilizations in the universe, should we destroy them?

Looking for livable planets outside the system is what we have been doing, but we know that there are too many celestial bodies in the universe to count. If we look at these planets one by one by exclusion, it will lead to inefficiency.

In order to improve the efficiency of finding livable planets outside the system, scientists choose these planets by model method, which is called "livable planet model".

The first model * * * contains six factors, namely: it is located in the livable zone of galaxies; The distance from the stars is just right; There is an ozone layer; There is a global magnetic field; The outer side is guarded by a larger planet; There is a satellite that is not much smaller than itself.

One more thing to say here is that the livable planet model is based on the situation of the earth itself, which is relatively narrow, but because we only know that life was born on the earth, scientists have been using this model to find strange models.

So if one day, scientists look for livable planets outside the system through this model, will humans become extinct?

Human choice

When collecting livable exoplanets, scientists will consider their radius, density, mass, escape speed, location, temperature and so on. And compare these data with the earth. This is the earth similarity index, abbreviated as ESI, where 0 stands for completely different, and 1 stands for the earth. If the ESI index of a planet is very close to 1, it means that it is more similar to the earth.

Among them, the ESI index of Mars in the solar system is 0.73, which is very similar to the Earth, so many countries and scientific research institutions have turned their research focus to Mars.

However, a foreign planetary livable laboratory found through research that there is an exoplanet Teegarden.b, Chinese name: Tegaden Star B, and its ESI index is as high as 0.95, which is very similar to the earth and almost a replica of the earth.

However, the reason why we didn't start space migration and didn't send an aircraft for further exploration is that this planet is about 12 light years away from the solar system, which is the distance that light flies for one year. If we look at the current speed of human beings, the fastest is only about 16 kilometers per second, and the time of flying 1 light-year is more.

In terms of time, at present, we can't attack the aborigines on other livable planets at all. This is because even if we launch a spacecraft with good quality now, it has been nearly 200 thousand years since we flew to that planet, and it is hard to say whether human beings will still exist after 200 thousand years.

Moreover, even if the attack is successful, humans cannot immigrate into space. The reason is that the carrying capacity of the spacecraft is limited, and it is impossible to store the food and fresh water consumed by human beings for 200,000 years.

In other words, it is not man's will that prevents him from destroying other planetary civilizations, but the distance between the planets is too far, even if we want to destroy each other, our strength will not allow it.

Law of dark forest

If we have the ability to fly a spaceship to another livable planet, should we eliminate the indigenous people on the planet? In fact, Liu has made it very clear in Three-body: the universe is a dark forest, and every planetary civilization is a hunter with a gun. In addition to hiding your own traces, you must destroy other lives at any time. Because in this forest, others are an eternal threat, and any life that exposes its existence will soon be destroyed.

The reason why we want to destroy the weak civilizations of other planets is that once the development of civilization meets the key nodes, there will be a blowout. For example, before the industrial revolution, the productivity of human beings hardly changed, but since the industrial revolution, in just a few hundred years, human beings have moved from primitive civilization to modern civilization and invented various destructive weapons.

Liu wrote in "Three-body" that it takes about 400 years for the three-body people to reach the earth, but in order to lock in the progress of the basic science of the earth, they sent Naoko to interfere with the experimental observation of the earth, which made the civilization of the earth science stagnate. If Santi people don't do this, human science is likely to develop rapidly after 400 years, which may greatly surpass Santi people's civilization, making Santi people not only unable to occupy the earth, but also threatened by the earth civilization itself.

If human beings want to immigrate to this planet without destroying the weak civilizations on other planets, they may have a technological explosion in a short time, which will make us not only unable to control them, but even threatened by their existence.

For the sake of mankind, eliminating other weak civilizations in the universe can increase their chances of survival.