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Related papers: "First in, last out" solution to the Fermi Paradox

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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

Temporal explanations to the Fermi paradox state that the vast scale of the galaxy diminishes the chances of establishing contact with an extraterrestrial technological civilization (ETC) within a certain time window. This argument is…

Popular Physics · Physics 2009-07-17 Carlos Cotta , Álvaro Morales

I introduce the Fermi Paradox and some of its solutions. Then I present my own solution which includes two proposals called the Subanthropic Principle and the Undetectability Conjecture. After discussing some consequences of this solution,…

Popular Physics · Physics 2007-05-23 Beatriz Gato-Rivera

Motivated by recent developments impacting our view of Fermi's paradox (absence of extraterrestrials and their manifestations from our past light cone), we suggest a reassessment of the problem itself, as well as of strategies employed by…

Astrophysics · Physics 2009-09-29 Milan M. Cirkovic , Robert J. Bradbury

It has been widely acknowledged that self-replicating space-probes (SRPs) could explore the galaxy very quickly relative to the age of the galaxy. An obvious implication is that SRPs produced by extraterrestrial civilizations should have…

Popular Physics · Physics 2011-11-29 Keith B. Wiley

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

It has been argued that self-replicating robotic probes could spread to all stars of our galaxy within a timespan that is tiny on cosmological scales, even if they travel well below the speed of light. The apparent absence of such von…

Popular Physics · Physics 2016-06-02 Axel Kowald

It is unclear how frequently life and intelligence arise on planets. I consider a Bayesian prior for the probability P(ETI) that intelligence evolves at a suitable site, with weight distributed evenly over ln(1 - ln P(ETI)). This log log…

Earth and Planetary Astrophysics · Physics 2016-09-21 Brian C. Lacki

One of the beneficial outcomes of searching for life in the Universe is that it grants greater awareness of our own problems here on Earth. Lack of contact with alien beings to date might actually comprise a null "signal" pointing humankind…

Popular Physics · Physics 2014-10-28 Eric J. Chaisson

The Zoo solution to Fermi's Paradox proposes that extraterrestrial intelligences (ETIs) have agreed to not contact the Earth. The strength of this solution depends on the ability for ETIs to come to agreement, and establish/police treaties…

Popular Physics · Physics 2017-09-13 Duncan H Forgan

A new solution to the Fermi Paradox is presented: probes or visits from putative alien civilizations have a very low probability until a civilization reaches a certain age (called the Contact Era) after the onset of radio communications. If…

Popular Physics · Physics 2022-12-27 Amri Wandel

This paper proposes a long term scheme for robotic exploration of the galaxy,and then considers the implications in terms of the `Fermi paradox' and our search for ETI. We discuss the parameter space of the `galactic ecology' of…

Popular Physics · Physics 2015-06-05 Martin T. Barlow

One of the most interesting questions that astronomy can hope to answer is: are we alone in our Milky Way galaxy? A detection of an electromagnetic (EM) signal generated by an extraterrestrial technological intelligence, or the presence in…

Instrumentation and Methods for Astrophysics · Physics 2026-05-01 B. Zuckerman

Gray (2015) argued that the Fermi paradox (FP) is a misnomer, and it is not a valid paradox. Gray also speculated that the argument was misattributed to Fermi, whose lunchtime remarks did not pertain to the existence of extraterrestrial…

General Physics · Physics 2016-10-03 Milan M. Cirkovic

In their article [arXiv:1705.03394], 'That is not dead which can eternal lie: the aestivation hypothesis for resolving Fermi's paradox', Sandberg et al. try to explain the Fermi paradox (we see no aliens) by claiming that Landauer's…

Popular Physics · Physics 2022-02-28 Charles H. Bennett , Robin Hanson , C. Jess Riedel

We explore Fermi's Paradox via a system of differential equations and using simulations of dispersal and interactions between competing interplanetary civilizations. To quantify the resources and potentials of these worlds, three different…

Physics and Society · Physics 2024-11-04 Gregory Roudenko , Yurrian Pierre-Boyer

The Search for Extraterrestrial Intelligence (SETI) has heretofore been a largely passive exercise, reliant on the pursuit of technosignatures. Still, there are those that advocate a more active approach. Messaging Extraterrestrial…

Popular Physics · Physics 2020-08-11 T. Cortellesi

If a civilization wants to maximize computation it appears rational to aestivate until the far future in order to exploit the low temperature environment: this can produce a $10^{30}$ multiplier of achievable computation. We hence suggest…

Popular Physics · Physics 2017-05-10 Anders Sandberg , Stuart Armstrong , Milan M. Cirkovic

In this paper we consider the Fermi's paradox (FP) and propose a possible resolution in the context of super-advanced alien civilizations. In this sense it can be regarded as to be the weak Fermi paradox (WFP). By assuming that…

Popular Physics · Physics 2021-04-09 Zaza Osmanov

SETI is not a usual point of departure for environmental humanities. However, this paper argues that theories originating in this field have direct implications for how we think about viable inhabitation of the Earth. To demonstrate SETI's…

Physics and Society · Physics 2025-01-14 Lukáš Likavčan