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Category: singularity – Page 2
Is Our Universe Inside a Supermassive Black Hole?
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Research paper: https://academic.oup.com/mnras/article/538/1/76/8019798?login=false.
The James Webb Space Telescope has revealed ancient galaxies that appear far too massive and mature for their age, challenging our current understanding of cosmic evolution. These galaxies, observed just 330 million years after the Big Bang, should be small and irregular. Instead, they are well-formed and massive, suggesting that something fundamental about our models of the early universe may be incomplete.
One radical theory proposes that our universe could be the interior of a black hole in a larger parent universe. In this model, the Big Bang was not an explosion in empty space but the moment matter collapsed into a black hole, creating a new cosmos inside. The event horizon of this black hole would act as a boundary, beyond which everything—including time—behaves differently from an outside perspective.
Recent observations also suggest that the universe might have a preferred axis, contradicting the assumption that the cosmos is isotropic. The surprising alignment of galaxies on a large scale hints at unknown forces or structures shaping the universe. If true, this could support the idea that our universe is not an isolated system but is influenced by a larger framework, possibly the structure of a black hole’s interior.
Some theories also suggest that black holes could generate new universes through a process called a “big bounce,” where extreme torsion at high densities prevents a singularity from forming. Instead of collapsing to an infinitely small point, matter could rebound, triggering expansion. If our universe formed in such a way, it could explain why physical constants seem fine-tuned for life—because only stable, self-sustaining black hole universes would persist.
Iceland approved the 4-day workweek in 2019, nearly 6 years later, all the predictions made by Generation Z have come true
Fewer hours. Same pay. Possible approach to the Economic Singularity?
In 2019, Iceland made headlines by becoming one of the first countries in the world to adopt the four-day working week, not through a general law, but through agreements allowing workers to negotiate shorter weeks or reduced hours. Five years on, the results are indisputable.
The Icelandic experiment began in 2015 with a pilot phase involving around 2,500 employees, or just over 1% of the country’s working population. Following the resounding success of this initiative, with 86% of the employees involved expressing their support, the project was formalised in 2019. Today, almost 90% of Icelandic workers benefit from a reduced working week of 36 hours, compared with 40 hours previously, with no loss of pay.
Initial concerns about the four-day week were widespread, both in Iceland and elsewhere in the world. There were fears of a drop in productivity, increased costs for businesses and difficulties in adapting to maintain service levels. However, the Icelandic experience has swept these fears under the carpet.
The Universe Creates Itself? New Theory Says Big Bang Never Happened
Did the universe really start with a Big Bang? Dr. Richard Lieu thinks otherwise. In this episode, we explore his radical theory of transient temporal singularities—bursts that could replace dark matter, dark energy, and even the Big Bang itself. Get ready to rethink the universe.
Paper link: https://arxiv.org/pdf/2503.08733.
Chapters:
00:00 Introduction.
00:43 The Big Bang Under Scrutiny.
04:31 Gravity Without Mass?
07:56 Implications, Related Theories, and the Future of Cosmology.
11:07 Outro.
11:26 Enjoy.
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Post-Labor Economics Lecture 03 — “That which gets measured gets managed!” (2025 update)
🤖🦾💰Tour de force by David Shapiro on the Economic Singularity.
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Post-Biological Civilizations: Life Beyond Flesh and Bone
What happens when intelligence escapes the bounds of flesh and bone? In this episode, we explore post-biological civilizations—entities that may trade biology for digital minds, machine bodies, or stranger forms still—and ask what becomes of identity, purpose, and humanity when the body is no longer required.
Watch my exclusive video Antimatter Propulsion: Harnessing the Power of Annihilation — https://nebula.tv/videos/isaacarthur–… Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isa… Use the link gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30. SFIA Discord Server: / discord Credits: Post-Biological Civilizations: Life Beyond Flesh and Bone Episode 498a; May 11, 2025 Written, Produced & Narrated by: Isaac Arthur Edited by: Ludwig Luska Select imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Chris Zabriskie, “Unfoldment, Revealment” Phase Shift, “Forest Night” Lewis Gill, “The Phobos Diary” Stellardrone, “Red Giant” 0:00 Intro 1:24 The Physical Presence of Post-Biological Civilizations 3:38 Societal & Cultural Aspects of Post-Biological Life 5:08 The Scifi Path to Post-Biological Life 8:03 The Singularity and the Ultimate Transition 9:47 Many Paths to Post-Biological Life 17:50 The Fermi Paradox & Post-Biological Civilizations 27:39 Ethics & the Fate of Humanity 29:17 The Transition Process at a Civilizational Scale.
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Credits:
Post-Biological Civilizations: Life Beyond Flesh and Bone.
Episode 498a; May 11, 2025
Written, Produced & Narrated by: Isaac Arthur.
Edited by: Ludwig Luska.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
Chris Zabriskie, \
Are We Wrong About Black Holes? A Radical Theory Challenges Einstein
During that meeting, three main black hole models were outlined: the standard black hole predicted by classical general relativity, with both a singularity and an event horizon; the regular black hole, which eliminates the singularity but retains the horizon; and the black hole mimicker, which reproduces the external features of a black hole but has neither a singularity nor an event horizon.
The paper also describes how regular black holes and mimickers might form, how they could possibly transform into one another, and, most importantly, what kind of observational tests might one day distinguish them from standard black holes.
While the observations collected so far have been groundbreaking, they don’t tell us everything. Since 2015, we’ve detected gravitational waves from black hole mergers and obtained images of the shadows of two black holes: M87* and Sagittarius A*. But these observations focus only on the outside — they provide no insight into whether a singularity lies at the center.
Loop quantum cosmology may explain smoothness of cosmic microwave background
Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe.
In classical physics, gravity is universally attractive. At the quantum level, however, this may not always be the case. If vast quantities of matter are present within an infinitesimally small volume – at the centre of a black hole, for example, or during the very earliest moments of the universe – spacetime becomes curved at scales that approach the Planck length. This is the fundamental quantum unit of distance, and is around 1020 times smaller than a proton.
In these extremely curved regions, the classical theory of gravity – Einstein’s general theory of relativity – breaks down. However, research on loop quantum cosmology offers a possible solution. It suggests that gravity, in effect, becomes repulsive. Consequently, loop quantum cosmology predicts that our present universe began in a so-called “cosmic bounce”, rather than the Big Bang singularity predicted by general relativity.