Will recent advances in AI result in a paradigm shift in Astrobiology and SETI?

Gále, J.; Wandel, Amri; Hill, H. G. M.

doi:10.1017/s1473550419000260

Cited by 11 publications

(13 citation statements)

References 19 publications

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“…Assuming that a precondition for the evolution of a civilization is life, and that advanced civilizations are longlived (Gale et al 2020;Wright et al 2022) the number of civilizations within a distance a from Earth is given by the product of the biotic and intelligence fractions by the density of stars:…”

Section: The Radiosphere Technosignature Criterionmentioning

confidence: 99%

The Fermi Paradox Revisited: Technosignatures and the Contact Era

Wandel

2022

ApJ

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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 biotic planets are common, putative advanced civilizations may send probes not to any planet showing biosignatures, but rather to planets with technosignatures, such as radio broadcasts. The contact probability is defined as the chance to find a nearby civilization located close enough so that it could have detected the earliest radio emissions (the “radiosphere”) and sent a probe that would reach the solar system at present. It is found that the current contact probability for Earth is very low unless civilizations are extremely abundant. Since the radiosphere expands with time, so does the contact probability. The Contact Era is defined as the time (since the onset of radio transmissions) at which the contact probability becomes of order unity. At that time alien probes (or messages) become more likely. Unless civilizations are highly abundant, the Contact Era is shown to be of the order of a few hundred to a few thousand years and may be applied not only to physical probes but also to transmissions (i.e., search for extraterrestrial intelligence). Consequently, it is shown that civilizations are unlikely to be able to intercommunicate unless their communicative lifetime is at least a few thousand years.

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Section: The Radiosphere Technosignature Criterionmentioning

confidence: 99%

The Fermi Paradox Revisited: Technosignatures and the Contact Era

Wandel

2022

ApJ

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“…Panov (2020) examined what post-Singularity ETIs might be like, with an eye towards their detectability. Gale et al (2020) argued that the Singularity is both nigh and universal, and that SETI would therefore do best to search for post-biological intelligences exploiting features such as quantum entanglement for communication. 1 Gray (2020b) described the "extended" Kardashev scale, with humanity's energy supply at 0.72 on the scale, and discusses how it can be generalized beyond energy use to describe, for instance, information or population.…”

Section: The Drake Equation and The Fermi Paradoxmentioning

confidence: 99%

SETI in 2020

Wright

2021

Preprint

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In the spirit of Trimble's "Astrophysics in XXXX" series, I very briefly and subjectively review developments in SETI in 2020. My primary focus is 74 papers and books published or made public in 2020, which I sort into six broad categories: results from actual searches, new search methods and instrumentation, target and frequency seleciton, the development of technosignatures, theory of ETIs, and social aspects of SETI.

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“…frequent testing of the progress in student knowledge development, scrutiny of the measured results by me to see if the students followed the procedure correctly. I saw teaching as completed when my understanding of reality and the students' one achieved the status of a "singularity" (Gale et al, 2020). In other words, teaching and learning were successful, if my understanding of data, scientific methods and reality converged at the same end point, as the students understanding of these terms did.…”

Section: Introductionmentioning

confidence: 99%

“…In a way, my transmissionism and radical constructivism combination led to me expecting the occurrence of a true singularity, i.e. a brain capacity of my brain and the student ones would converge in the same way as that of a computer and human might (Gale et al, 2020). However, the practical picture turned out to be far more complicated.…”

Section: Introductionmentioning

confidence: 99%

Community of Practice as a teaching approach in a postgraduate environment. An insider ethnography of a higher education institution in South Africa

Tandlich

2022

Academicus International Scientific Journal

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This auto-ethnographic description of the experiences in the development of the teaching and learning approach, at the postgraduate level, introduces the impact of the community of practice in the development of the learning processes in South Africa, with an international view. The principles of community of practice are outlined and the theoretical grounding is provided in terms of the notion of assemblage theory, the definitions of fundamental and derivative epistemic authority, as well as the assemblage boundary and the personal intents of the community of practice members. The theoretical grounding is then applied through several iterations of the community of practice between 2006 and present. The adaptive nature of the community of practice as an assemblage and the function as a sociology-of-knowledge system are outlined.

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Will recent advances in AI result in a paradigm shift in Astrobiology and SETI?

Cited by 11 publications

References 19 publications

The Fermi Paradox Revisited: Technosignatures and the Contact Era

The Fermi Paradox Revisited: Technosignatures and the Contact Era

SETI in 2020

Community of Practice as a teaching approach in a postgraduate environment. An insider ethnography of a higher education institution in South Africa

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