The theory that extraterrestrial life does not appear on the earth is 'because it is not worth visiting the solar system'

Considering the size of the universe, it seems not strange that extraterrestrial life exists, but human beings have not been able to contact extraterrestrial life so far. A new theory has emerged that 'the solar system is not attractive to extraterrestrials' for this 'reason why extraterrestrial life does not appear on the earth'.

Galactic settlement of low-mass stars as a resolution to the Fermi paradox
https://doi.org/10.48550/arXiv.2210.10656

Maybe We Don't See Aliens Because Nobody Wants to Come Here - Universe Today
https://www.universetoday.com/158287/maybe-we-dont-see-aliens-because-nobody-wants-to-come-here/

There have been many discussions about why extraterrestrial life does not appear on Earth, especially pointing out the contradiction ``If there is a civilization outside the earth, why does that civilization not come into contact with the earth civilization?'' Many researchers are discussing the Fermi paradox .

For example, in a paper published in 1975 by astronomer Michael Hart, ``If an extraterrestrial civilization sends a fleet of 100 convoys from its home planet to another star, it will also send a convoy of 100 convoys from the star where it ends up. is sent out, and the process is repeated many times to rapidly expand the civilized sphere.” It will traverse planets throughout the universe, but the fact that no extraterrestrials have reached Earth at this time means that extraterrestrials do not exist.'

The newly presented theory points out that previous considerations of the Fermi paradox 'assuming that all celestial bodies have the same value', and that when extraterrestrials aim for other celestial bodies, celestial bodies He claims that he should aim for an attractive planet by assessing the value of the planet. Furthermore, the research team points out that the value of celestial bodies is measured by the length of life, and considers that extraterrestrial life should preferentially aim for long-lived celestial bodies.

Low-mass objects such as K-type main-sequence stars (orange dwarfs) and red dwarfs are known as long-lived objects. These celestial bodies have a longer lifespan than the solar system and can extract energy over a long period of time, which makes them attractive to extraterrestrial civilizations. The unattractive solar system has a low priority and is therefore not visited by extraterrestrial life.