From NASA Jet Propulsion Laboratory and American University scientists estimate that civilizations in the universe can reach such a high level of technology that they have the possibility of encountering each other. Scientists’ predictions are often pessimistic: such meetings are unlikely, because civilizations are likely to self-destruct without reaching the required level, but there is still a chance.
Civilization must overcome the most difficult "big filters" (red) of several "filters". "Yellow" land civilization is very close to it
However, we hope to meet. Although we don't know what it will bring to
NASA's Jet Propulsion Laboratory scientists in their products why they believe we have never encountered intelligent alien life, and most likely never.
They believe that any civilization (including ours) is highly likely to destroy itself or die from natural threats before reaching the point of development where interstellar contact becomes possible.
Scientists say their job is: "avoid 'big filter': alien life and the future of human beings in the universe"
"great filter"
Scientists have established the "big filter" theory that all civilizations in life in the universe have no time to contact people on earth (although perhaps some civilizations come into contact with each other).
Scientists analyzed and refined the so-called " Drake formula ", which estimated the number of civilizations in Milky Way . The main conclusion they came to was that the development of civilization was uneven. A period of more or less peaceful development (a considerable length) is followed by a "pass filter", when various problems (man-made and natural) can destroy civilization. The most difficult barrier is the "big filter", and almost no civilization can pass through it. The Earthlings are now approaching this "great filter".
The author believes that terrestrial civilizations may be threatened by natural disaster - asteroids or epidemics, as well as man-nuclear disasters, man-made warming or uncontrolled artificial intelligence . None of these threats are specifically targeted on land, and they can (and likely) plague any intelligent life forms and the civilizations they have established, scientists wrote.
However, scientists still acknowledge that people still have the opportunity to pass the "big filter" and avoid extinction: "The key to successfully overcoming human 'big filter' will be to identify their own destructive qualities and neutralize them," wrote lead author Jonathan Jiang and his colleagues.
has a chance, but to take advantage of it, cooperation among all people on the planet is necessary. Otherwise, everything will be as usual: our civilization will perish in total loneliness and will not encounter anyone in the universe.
