Background of the Fermi paradox, what is the Fermi paradox? Why is the Fermi paradox called a parado

In an informal discussion in 1950, the Nobel laureate physicist Fermi was discussing the issue of flying saucers and aliens with others, and suddenly said, "Where are they?" If there are a large number of advanced extraterrestrial civilizations in the galaxy, then why can't there be even evidence of spaceships or probes.

A more specific take on this topic first appeared in a 1975 article by Mike Hart, sometimes referred to as the Mike Hart Paradox. Another closely related question is the Great Silence – even if interstellar travel is difficult, if life is universal, why can't we detect electromagnetic signals?

Some have tried to solve the Fermi paradox by looking for evidence of extraterrestrial civilizations, and have also suggested that these beings may not have human intelligence. Some scholars believe that higher extraterrestrial civilizations do not exist at all, or are so rare that it is impossible for humans to connect with them. The Earth Difference Hypothesis is sometimes thought to provide an explanatory answer to the Fermi paradox.

Beginning with Hart, many people began to develop scientific theories or models about extraterrestrial civilizations. Much of the work cites the Fermi paradox as a reference. Attention has been paid to a number of related issues, including astronomy, biology, ecology and philosophy.

The emerging astrobiology has introduced interdisciplinary research methods to solve problems.

The Fermi Paradox: Why Can't You Find Extraterrestrial Civilizations? Explain the frightening laws of the dark forest.

The Fermi paradox is a paradox about why people haven't discovered aliens yet! To this day, the basic theory of the dark world, the theory of civilization genetics, and the quantum theory are all expressions of the Fermi paradox! As we all know, since the creation of the treasure of modern science and technology, we have gained many scientific and technological innovations in the past 100 years;

However, the insignificance of the earth also makes many people feel uneasy! After all, the vastness of the universe is basically vast, and all alien planets are very civilized, and they may have the ability to destroy me!

However, Fermi, a well-known scientist in the last century, clearly put forward a paradox that still causes thousands of people to think about, which is called the "Fermi paradox"! The specific content of this paradox is that since the birth of the universe, it has already had a history of 13 billion light years, and after the birth of the universe 4 billion years, it has the standard of the development trend of civilization!

In other words, there must be many advanced civilizations in the universe that are billions of years ahead of people and tens of millions of years ago! But this kind of advanced civilization has never discovered people, and everyone has never looked for their traces!

Therefore, between each other, it is "Zheng people buy shoes"! Since the advent of Fermi's view, there have been many versions of Fermi's paradox! For example, the basic theory of the dark world in the best-selling fantasy "The Three-Body Problem" is actually one of the expressions of Fermi's paradox, and civilizations are following the basic laws of the "law of the jungle"!

At the same time, there are also some biologists who feel that there is a "selfish gene" in the body of a highly intelligent life, so the development trend of civilization will start self-abandonment, that is, "internal war"! This kind of basic theory sounds a little scary to think about!

There is also a more cheerful basic theory, which is that high civilizations have passed through the rebirth level, and have gone to the more mysterious, basically countless quantum worlds of various resources, and they are in the mysterious universe, and we are in the macrocosm, and there is a gap between each other!

No extraterrestrial paradox was found. Because no one has discovered the existence of aliens until now, his remarks are called paradoxes.

A deep understanding of the Fermi paradox: why may some people fail to accept its truth?

"Fermi's paradox"：

Human beings can fly to various planets in the galaxy in 1 million years, so aliens should come to Earth now as long as they evolved 1 million years earlier than humans. In other words,"Fermi's paradox"shows such a paradox:

a.Aliens exist - scientific inference can prove that aliens evolved much earlier than humans, and they should have come to Earth and exist somewhere;

b.Aliens don't exist – to date, humans have not found any clues about their existence.

Fermi's paradox"The contradiction between the overestimation of the existence of extraterrestrial civilizations and the lack of relevant evidence is discussed.

The Fermi paradox is a scientific paradox about extraterrestrials, interstellar travel, and the contradiction between an overestimation of the existence of extraterrestrial civilizations and a lack of relevant evidence, many of which have been addressed, including astronomy, biology, ecology, and philosophy. So what are the possible explanations for Fermi's paradox?

1. A great technical filter is right in front of us. I found that science and technology most likely require a certain free spirit of innovation, exploration, and individuality. Throughout our history, the levers at which a person can inflict harm have steadily risen.

Back 10,000 years ago, a strong man could kill a few people and destroy one or two huts.

2. Aliens are among us. The first civilization to develop space travel, if similar in its mindset to us, will most likely want to carry out defensive expansions at least within and outside the galaxy. If there is no other way, it is to stop the expansion of future invading civilizations.

Or maybe it's because it's aware of the destructive capabilities of even lower civilizations and wants to monitor the galaxy.

3. Technological civilization is impossible. This is the most unlikely explanation. As far as the nervous system is concerned, it is likely that intelligence has evolved only once on Earth.

However, higher intelligence has evolved independently many times. Orangutans and chimpanzees, dolphins and whales, elephants, crows and crows, and very independent octopuses and squid, all have extraordinary intelligence.

The Fermi paradox is a paradox about why humans have not yet discovered aliens! To this day, the Dark Forest Theory, the Civilization Genome Theory, and the Quantum Theory are all explanations of the Fermi paradox! We all know that since mankind invented the magic weapon of modern science, we have made a lot of scientific and technological progress in more than 100 years;

However, the smallness of the earth also makes many people feel afraid! After all, the vastness of the universe is almost boundless, and any extraterrestrial super civilization may have the ability to destroy us!

However, Fermi, a famous physicist in the last century, proposed a paradox that still makes people think about it countless times, which we call the "Fermi paradox"! The content of this paradox is that the universe has a history of 13 billion years since its birth, and four billion years after the birth of the universe, there will be conditions for the development of civilization!

In other words, the universe must be filled with a large number of advanced civilizations billions or even hundreds of millions of years before human beings! But these advanced civilizations have never found human beings, and we have never found any trace of them!

Therefore, there is a "contradiction" between the two! Since the birth of Fermi's assertion, there have been many versions of Fermi's paradox in the academic community! For example, the dark forest theory in the best-selling sci-fi ** "The Three-Body Problem" is actually one of the answers to explain Fermi's paradox, and civilizations are abiding by the law of the "law of the jungle"!

At the same time, there are also some scientists who believe that there is a "selfish gene" in the body of advanced intelligent life, so when civilization develops to a certain extent, it will start self-destruction, that is, "civil war"! This kind of theory sounds a bit scary!

There is also a more optimistic theory, which is that the higher civilizations have traveled through the dimension and gone to the more mysterious quantum world, where all kinds of resources are almost endless, and they are in the microcosm and we are in the macrocosm, and there is a chasm between each other!

What exactly is the Fermi paradox about? Will it be confirmed that it recognizes the existence of extraterrestrial life?

The Fermi paradox is about the contradiction between the existence and non-existence of aliens. The large scale of the universe indicates that it is very likely that aliens have appeared and are much earlier than humans, so aliens should have come into contact with the earth a long time ago, but paradoxically, so far humans have not found any evidence of the existence of aliens. One explanation is that we are not yet able to find such evidence with our state of technology.

The core problem of the Fermi paradox is that the universe is so big, why can't there be intelligent life on other planets, some people speculate that extraterrestrial civilizations have always existed around us, but the technology is too advanced for us to discover.

Refers to the overestimation of extraterrestrial life in astronomy. The most common simple explanation is that unknown creatures that have never been in contact do not exist, because if they have a civilization equal to or even higher than that of humans, there will inevitably be traces of activity.

Since 1533, the great Copernicus published the famous "Theory of the Movement of the Heavenly Bodies", which changed the understanding of human beings on the universe.

Nobel laureate in physics Fermi famously proposed the "Fermi Paradox" in 1951. The main content can be summarized as follows: the universe is large enough, and no matter how small the probability is, intelligent beings will be generated, but so far we have not found a clear extraterrestrial intelligence.

Explanations for Fermi's paradox are:

1. The big filter theory, in summary, is that the probability of survival and development of life is indeed too low, so extraterrestrial civilizations do not exist, we are the only ones, or because we are too rare, it is difficult for us to encounter. Yes, the "rare earth hypothesis".

2. The Dark Forest mode, which was pioneered by Liu Cixin, can be summed up as the intelligent civilization will be able to hide itself and try its best to destroy other intelligent creatures found.

3. Humans are too small, and aliens disdain to pay attention to them. The most vivid analogy is this: we are relative to aliens, what ants (or even bacteria) are relative to us.

4. Humans have been deliberately kept in captivity, which may be experimental specimens. Aliens protect human production and development, and prevent human contact with the outside world, linked to the recent discovery of 40,000 walls of fire in the solar system by Voyager.

5. The dimensions are different and cannot be communicated. Previous explanations have been based on the fact that extraterrestrial intelligence is living organisms, and extraterrestrials are inferred based on human living conditions. In fact, extraterrestrial intelligence is not necessarily living organisms. For example, it may exist in electromagnetic form, or it may be data-based.

In fact, if you think about it deeply, what is the biggest obstacle to our space travel? In fact, it is our body, our body is afraid of space rays, afraid of temperature changes, afraid of lack of oxygen, lack of water, lack of food, and life limits, etc. In the same way, if a civilization higher than ours wants to travel in space, it will inevitably choose the least costly way, that is, abandon the physical body in favor of the form of the conscious body.

In fact, the most critical technology of human beings is the digitization of consciousness, and the initial may be the brain-computer interface, if our consciousness is digitized and gets rid of the shackles of the body, it is a great leap forward for human civilization. Of course, if the consciousness is digitized, the problems may be shattered, and every individual has great freedom, everyone can have a galaxy and create the world they want, which is the real "happy planet".

Finally, I personally believe that extraterrestrial intelligence must exist, and I am more inclined to the plurality of intelligent beings, and extraterrestrial life may not need to build huge advanced spaceships, they may be conscious beings wandering in the universe.