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Related papers: The Great Filter hypothesis -- a new Great Filter?

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Where is everybody? This phrase distills the foreboding of what has come to be known as the Fermi Paradox - the disquieting idea that, if extraterrestrial life is probable in the Universe, then why have we not encountered it? This conundrum…

Computers and Society · Computer Science 2023-05-10 Mark M. Bailey

Fermi's Paradox is the contradiction between the fact that it would seem to be highly probable that there are other technologically advanced species beyond the Earth, and the fact that there is no generally accepted evidence for their…

Popular Physics · Physics 2018-12-19 Kent A. Peacock

Our Universe is a vast, tantalizing enigma - a mystery that has aroused humankind's innate curiosity for eons. Begging questions on alien lifeforms have been thus far unfruitful, even with the bounding advancements we have embarked upon in…

Popular Physics · Physics 2023-02-20 Jonathan H. Jiang , Philip E. Rosen , Kelly Lu , Kristen A. Fahy , Piotr Obacz

The Great Filter interpretation of Fermi's great silence asserts that $Npq$ is not a very large number, where $N$ is the number of potentially life-supporting planets in the observable universe, $p$ is the probability that a randomly chosen…

Popular Physics · Physics 2015-11-19 Vilhelm Verendel , Olle Häggström

The Fermi paradox is the conflict between an expectation of a high {\em ex ante} probability of intelligent life elsewhere in the universe and the apparently lifeless universe we in fact observe. The expectation that the universe should be…

Popular Physics · Physics 2018-06-08 Anders Sandberg , Eric Drexler , Toby Ord

This study examines the hypothesis that the rapid development of Artificial Intelligence (AI), culminating in the emergence of Artificial Superintelligence (ASI), could act as a "Great Filter" that is responsible for the scarcity of…

Popular Physics · Physics 2024-05-02 Michael Garrett

The Great Filter hypothesis proposes that the emergence of technological societies capable of interstellar travel depends on a small number of exceptionally hard and highly improbable steps. Traditional versions of this hypothesis enumerate…

The cosmic "Great Silence" revealed by the Fermi paradox remains a central puzzle in contemporary science. Existing explanations such as the "Big Filter," "Zoo Hypothesis," and "Dark Forest" theory are trapped in isolated frameworks of…

Physics and Society · Physics 2025-09-09 Xiaoyu Yan

The existence of intelligent, interstellar traveling and colonising life is a key assumption behind the Fermi Paradox. Until recently, detecting signs of life elsewhere has been so technically challenging as to seem almost impossible.…

Earth and Planetary Astrophysics · Physics 2018-11-16 David L Clements

The Fermi paradox has given rise to various attempts to explain why no evidence of extraterrestrial civilisations was found so far on Earth and in our Solar System. Here, we present a dynamical model for the development of such…

Earth and Planetary Astrophysics · Physics 2023-01-25 Dominik R. G. Schleicher , Stefano Bovino

No present observations suggest a technologically advanced extraterrestrial intelligence (ETI) has spread through the galaxy. However, under commonplace assumptions about galactic civilization formation and expansion, this absence of…

Popular Physics · Physics 2011-04-25 Jacob D. Haqq-Misra , Seth D. Baum

The Fermi Paradox is the apparent contradiction between the high probability extraterrestrial civilizations' existence and the lack of contact with such civilizations. In general, solutions to Fermi's paradox come down to either estimation…

Popular Physics · Physics 2010-07-27 I. Bezsudnov , A. Snarskii

In this work, we explore constraints on the emergence and longevity of technologically intelligent civilizations in our Galaxy, considering the Fermi paradox. We argue that under optimistic assumptions about the probability of life and…

Astrophysics of Galaxies · Physics 2026-02-27 Sohrab Rahvar , Shahin Rouhani

The Fermi paradox is the discrepancy between the strong likelihood of alien intelligent life emerging (under a wide variety of assumptions) and the absence of any visible evidence for such emergence. We use this intriguing unlikeness to…

High Energy Astrophysical Phenomena · Physics 2019-08-06 Luis A. Anchordoqui , Susanna M. Weber , Jorge F. Soriano

With an evolutionary approach, the basis of morality can be explained as adaptations to problems of cooperation. With 'evolution' taken in a broad sense, AIs that satisfy the conditions for evolution to apply will be subject to the same…

Physics and Society · Physics 2025-10-09 Daniel Vallstrom

High-energy astrophysical events that cause galaxy-scale extinctions have been proposed as a way to explain or mollify the Fermi Paradox, by making the universe at earlier times more dangerous for evolving life, and reducing its present-day…

Popular Physics · Physics 2017-04-14 S. Jay Olson

The fermi paradox uses an appeal to the mediocrity principle to make it seem counter-intuitive that humanity has not been contacted by extraterrestrial intelligence. A numerical, statistical analysis was conducted to determine whether this…

Popular Physics · Physics 2016-06-17 Evan Solomonides , Yervant Terzian

This paper suggests that a universal solution to the Fermi paradox exists and can be derived directly from the definition of life and/or intelligence, therefore eliminating the need for any questionable assumptions and even for the…

Popular Physics · Physics 2019-03-29 Alexander Berezin

Whether we are alone in the universe is one of the greatest mysteries facing humankind. Given the >100 billion stars in our galaxy, many have argued that it is statistically unlikely that life, including intelligent life, has not emerged…

Popular Physics · Physics 2017-01-31 Joao Pedro de Magalhaes

No present observations suggest a technologically advanced extraterrestrial intelligence (ETI) has spread through the galaxy. However, under commonplace assumptions about galactic civilization formation and expansion, this absence of…

Popular Physics · Physics 2018-03-28 Alexander Berezin
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