Explore the entire life story of the cosmos, from quantum flickers at the Big Bang to the distant eras of black holes and dark energy, and discover what kinds of civilizations might endure across these unimaginable spans of time.
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Credits:
Spaceport Innovations — Designing the Next Generation of Launch Sites.
July 31, 2025; Episode 744
Written, Produced & Narrated by: Isaac Arthur.
Epochs of the Universe — The Cosmic Clock & Civilization (July 31, 2025)
Recorded: June 2025
Written by: Isaac Arthur.
Editor: Lukas Konecny.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
Chapters.
0:00 Intro.
2:26 The T-Scale — Time, Terrifyingly Large and Small.
8:25 The Grand Unification Epoch.
10:30 The Inflationary Epoch.
15:40 The Electroweak Epoch.
17:41 The Quark Epoch.
18:19 The Hadron Epoch.
19:28 The Early Universe.
22:52 The Stelliferous Era (T10–T14)
22:24 Into the Darkness (T15-T67)
31:56 The Sojourn.
32:54 The Black Hole Era.
36:55 The Dark Era.
40:29 Final Fates: Cycles, Cracks, and Cosmic Cliffhangers.
Who needs Starlink when you’ve got an actual starling
If you create something that mimics you be aware that it will try to self-preserve when it sees you as a treath.
Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.
Long-term musical training may mitigate the age-related decline in speech perception by enhancing cognitive reserve, according to a study published in PLOS Biology by Claude Alain from the Baycrest Academy for Research and Education, Canada, and Yi Du from the Chinese Academy of Sciences.
Normal aging is typically associated with declines in sensory and cognitive functions. These age-related changes in perception and cognition are often accompanied by increased neural activity and functional connectivity—the statistical dependence of activity between different brain regions—in widely distributed neural networks.
The recruitment of neural activity and strengthening of functional connectivity are thought to reflect a compensatory strategy employed by older adults to maintain optimal cognitive performance.
Imagine if every pattern shaped by nature – like a protein’s fold or cosmic phenomena – is inherently learnable by AI.
Join us as we journey beyond the birth of the universe to unravel the mysteries of what might have preceded the Big Bang—and whether time itself had a beginning.
Watch my exclusive video Mass Drivers on the Moon: https://nebula.tv/videos/isaacarthur–…
Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur.
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Use the link https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.
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Credits:
Before the Big Bang — What Came Before Time?
Episode 738; July 20, 2025
Written, Produced & Narrated by: Isaac Arthur.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
0:00 Intro Asking the Impossible.
2:08 The Limits of Time and Spacetime.
7:45 Beyond the Big Bang: Alternate Beginnings.
14:38 Other Realities: Higher Dimensions and Shadow Universes.
18:28 Emergent Time.
22:38 Bubble Collisions and Multiverse Scars.
24:44 Conclusion: What Came Before Time?
Physicist and fusion researcher Eric Lerner presents a sweeping critique of the Big Bang theory and the standard model of cosmology at Demysticon 25. He builds on the foundations of plasma physics and the work of Nobel laureate Hannes Alfvén to outline an alternative cosmological framework rooted in known physical laws—gravity, nuclear fusion, and electromagnetic plasma behavior—rather than hypothetical concepts like dark matter, dark energy, or cosmic inflation. He explores how filamentary plasma structures may account for galaxy formation, how fusion research using dense plasma focus devices parallels cosmic processes, and how the cosmic microwave background may not be relic radiation from a singular origin. Merging astrophysics, plasma cosmology, and energy research, this talk reframes the origin and structure of the universe—and calls into question the prevailing narratives at the heart of modern theoretical physics.
PATREON
/ demystifysci.
PARADIGM DRIFT
https://demystifysci.com/paradigm-dri… Go! Introduction the Big Bang Debate 00:03:57 Eric Lerner’s Perspective on Cosmic Evolution 00:04:21 The Pinch Effect and Electrical Currents in Plasmas 00:10:27 Evolutionary Hierarchies and Cosmic Filaments 00:14:50 Interplay of Forces in Structure Formation 00:18:14 Evidence of Filaments Across Scales 00:25:04 Dynamics of Galaxy Formation and Star Development 00:29:08 Cosmic Microwave Background and Element Formation 00:30:29 The Formation and Properties of Early Galaxies 00:35:22 Energy Flows and the Cosmic Evolution Crisis 00:39:58 Plasma Focus Devices and Fusion Energy Research 00:41:16 Q&A Understanding Galaxy Components and Rotation 00:51:33 Q&A The Implications of Missing Gravity and Galaxy Dynamics 00:58:07 Q&A Gravitational Lensing and Mass Distribution 01:00:32 Q&A Lensing and Galactic Observations 01:02:04 Q&A Fractal Patterns in Cosmology #cosmology, #space, #galaxyformation, #gravitationalwaves, #cosmicstructures, #astrophysics, #fusionenergy, #magneticfields, #spacephysics, #electricuniverse, #criticalthinking #philosophypodcast, #sciencepodcast, #longformpodcast ABOUS US: Anastasia completed her PhD studying bioelectricity at Columbia University. When not talking to brilliant people or making movies, she spends her time painting, reading, and guiding backcountry excursions. Shilo also did his PhD at Columbia studying the elastic properties of molecular water. When he’s not in the film studio, he’s exploring sound in music. They are both freelance professors at various universities. PATREON: get episodes early + join our weekly Patron Chat https://bit.ly/3lcAasB MERCH: Rock some DemystifySci gear : https://demystifysci.myspreadshop.com… AMAZON: Do your shopping through this link: https://amzn.to/3YyoT98 DONATE: https://bit.ly/3wkPqaD SUBSTACK: https://substack.com/@UCqV4_7i9h1_V7h… BLOG: http://DemystifySci.com/blog RSS: https://anchor.fm/s/2be66934/podcast/rss MAILING LIST: https://bit.ly/3v3kz2S SOCIAL:
MUSIC:-Shilo Delay: https://g.co/kgs/oty671
00:00 Go! Introduction the Big Bang Debate.
00:03:57 Eric Lerner’s Perspective on Cosmic Evolution.
00:04:21 The Pinch Effect and Electrical Currents in Plasmas.
00:10:27 Evolutionary Hierarchies and Cosmic Filaments.
00:14:50 Interplay of Forces in Structure Formation.
00:18:14 Evidence of Filaments Across Scales.
00:25:04 Dynamics of Galaxy Formation and Star Development.
00:29:08 Cosmic Microwave Background and Element Formation.
00:30:29 The Formation and Properties of Early Galaxies.
00:35:22 Energy Flows and the Cosmic Evolution Crisis.
00:39:58 Plasma Focus Devices and Fusion Energy Research.
00:41:16 Q&A Understanding Galaxy Components and Rotation.
00:51:33 Q&A The Implications of Missing Gravity and Galaxy Dynamics.
00:58:07 Q&A Gravitational Lensing and Mass Distribution.
01:00:32 Q&A Lensing and Galactic Observations.
01:02:04 Q&A Fractal Patterns in Cosmology.
#cosmology, #space, #galaxyformation, #gravitationalwaves, #cosmicstructures, #astrophysics, #fusionenergy, #magneticfields, #spacephysics, #electricuniverse, #criticalthinking #philosophypodcast, #sciencepodcast, #longformpodcast.
ABOUS US: Anastasia completed her PhD studying bioelectricity at Columbia University. When not talking to brilliant people or making movies, she spends her time painting, reading, and guiding backcountry excursions. Shilo also did his PhD at Columbia studying the elastic properties of molecular water. When he’s not in the film studio, he’s exploring sound in music. They are both freelance professors at various universities.