The hottest Cosmology Substack posts right now

And their main takeaways
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Top Science Topics

The Infinitude of Time (2)

Fake Noûs • 235 implied HN points • 07 Mar 26
📖 Philosophy Cosmology
  1. Paradoxes like Zeno’s and thought experiments like Hilbert’s Hotel don’t show that actual infinities are impossible, since infinite completed processes can be coherent and the strange results are arguably acceptable.
  2. The Big Bang doesn’t force a beginning of time because cyclic or other models allow an infinite past, and positing a timeless origin is unsatisfying and unexplained; appeals to God or other causes fail because causation and action presuppose time.
  3. There’s a symmetry between past and future: it’s odd to deny a possible end of time but accept a beginning, and that intuition plus the lack of any good explanation for a beginning makes an infinite past seem more plausible.

a dream within a dream

Secretum Secretorum • 353 implied HN points • 25 Feb 26
📖 Philosophy Cosmology
  1. Many myths picture the world as a dream or mental creation of a deity whose move from sleep or dream into wakefulness is what makes the world solid and real.
  2. There’s a trade-off: dreaming gives unconstrained creative freedom, while entering the dream and becoming lucid brings self-reflection but also limits, needs and constraints.
  3. A recurring motif is that the creator or the soul gets lost inside the creation and must be reminded or find clues to remember its true origin and return home.

There's Still Time Enough

Everything Is Amazing • 1425 implied HN points • 31 Dec 25
📖 Philosophy Cosmology
  1. The cosmic calendar shows human existence is just a tiny sliver of deep time, making our place in the universe feel shockingly small.
  2. Thinking about deep time can provoke awe and humility, but it can also be oddly comforting and help you feel part of something much larger.
  3. Even though our lives are fleeting on that scale, our ability to look back, imagine, and search for meaning makes our brief appearance remarkable and worth celebrating.

January Supporters Update: A Book, A Podcast, An Anniversary Request

Everything Is Amazing • 651 implied HN points • 08 Jan 26
🔬 Science Cosmology
  1. Vera C. Rubin Observatory images highlight the mind-bending scale of the universe, from nearby stars to galaxies tens of millions of light-years away, showing how tiny any single patch of sky really is.
  2. The newsletter is reaching a five-year milestone and will shake things up with a new season and upcoming changes.
  3. Bigger projects are underway, including a book inspired by field experiences, and this update is aimed at paid supporters.

Heraclitus

Classical Wisdom • 2103 implied HN points • 14 Apr 23
📖 Philosophy Cosmology
  1. Heraclitus believed in a world of constant change and transformation, emphasizing unity of opposites.
  2. Heraclitus' concept of the divine Logos serves as a guiding force for the universe, representing an underlying principle for all things.
  3. Heraclitus' philosophy of universal flux, likened to fire, highlights the harmony in the constant transformation of opposites.
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Pandæmonium

Cosmographia • 678 implied HN points • 28 Feb 24
⛪ Faith & Spirituality Cosmology
  1. The post discusses the fall of Lucifer and his rebellion against God in heaven, leading to his ultimate downfall and banishment to a hellish abyss.
  2. It explores the concept of eternal damnation for those who follow in Lucifer's rebellious footsteps.
  3. The post hints at the ominous and hopeless fate that awaits those who enter the described underworld, echoing themes from various religious and literary works.

Carl Jung’s Gnostic Revival, Abraxas, and the 20th Century Cult of Mithra (part 5)

Matt Ehret's Insights • 727 implied HN points • 17 Jan 24
📖 Philosophy Cosmology
  1. Carl Jung saw himself as a Dionysian messiah and initiate of Mithra seeking to create a new religious order.
  2. Jung preferred Mithraism over Christianity for its nature worship and viewed Christianity as antagonistic towards the beauty of the world.
  3. Jung's involvement in promoting gnostic texts and psychedelics, as well as his influence on establishing a new spiritualism, reflects his desire to overthrow Christianity and establish a new gnostic religious order.

The Emperor’s New Universe

The Egg And The Rock • 687 implied HN points • 18 Jan 24
🔬 Science Cosmology
  1. Using Dark Matter to solve cosmological problems has become a dangerous addiction
  2. Dark Matter and Dark Energy now make up the majority of the universe's mass-energy
  3. Ordinary matter, like stars and planets, is becoming a small percentage in the universe

The Tiger Show

Caitlin’s Newsletter • 1303 implied HN points • 01 Feb 25
📖 Philosophy Cosmology
  1. We should not let the least capable control our world. People often feel helpless, but we have the power to change things for the better.
  2. Inside us, there's a great potential that we often forget. We have the ability to stand up for our happiness and well-being.
  3. The current state of things can change when we decide to take a stand. We are stronger than we realize and can make a difference.

An Intuitive Guide to Black Holes

Photon-Lines Substack • 556 implied HN points • 06 Jul 25
🔬 Science Cosmology
  1. A black hole is an area in space where the gravity is so strong that nothing, not even light, can escape. Imagine needing to throw a ball so hard that it never comes back; that's what escaping a black hole is like.
  2. To escape Earth's gravity, you need to reach a speed of about 11 kilometers per second. That's much slower than the speed of light, but black holes need escape velocities even greater than that!
  3. Black holes form from the collapse of massive stars after they've used up their fuel. When the star runs out of energy and can no longer hold itself up, it collapses into a point called a singularity, creating a black hole.

A Theistic Theory of Everything

Bentham's Newsletter • 196 implied HN points • 05 Feb 24
⛪ Faith & Spirituality Cosmology
  1. The article presents a compelling argument for the plausibility of theism based on probability and explanatory power.
  2. The concept of an indifferent universe theodicy is introduced to explain the existence of evil within a theistic framework.
  3. The theistic theory discussed is said to be simple, able to explain a wide array of data, and posits unlimited perfection as its fundamental aspect.

Dark Forest Cosmology

Fake Noûs • 112 implied HN points • 23 Aug 25
🔬 Science Cosmology
  1. The Dark Forest Theory suggests that intelligent civilizations hide in the universe to avoid being destroyed by others. It's based on the idea that revealing one's location could lead to danger.
  2. This theory tries to explain why we haven't found evidence of other intelligent life, saying that advanced civilizations choose to stay silent instead.
  3. However, there are problems with the theory, like the assumption that civilizations can't find each other easily, despite having advanced technology. If they can destroy each other, they could likely also find each other's locations.

Current Status and Purpose of Exoplanet Exploration

Space Ambition • 119 implied HN points • 02 Feb 24
🔬 Science Cosmology
  1. Over 5,500 exoplanets have been discovered, and some even have known atmospheric compositions. This exploration is about more than science; it's about understanding our universe.
  2. Different methods are used to find exoplanets, including the transit method and radial velocity method. Each has its own strengths and helps us learn more about these distant worlds.
  3. The research into exoplanets can inspire people and improve technology, benefiting various industries. It also boosts public interest in science, making people more aware of issues like climate change.

(Ad-free Video) What's New in Science With Sabine and Lawrence | Fusion Dark Matter, String Theory in Biology, and Rapid Evolution

Critical Mass • 3 implied HN points • 13 Feb 26
🔬 Science Cosmology
  1. Future fusion reactors might produce axion-like particles through neutron–lithium reactions in their shielding, offering a new way to search for very light, weakly interacting dark-matter candidates.
  2. Quantum interference has been observed with clusters of thousands of atoms, pushing the boundary of everyday quantum effects and reigniting debate about whether wavefunction collapse is a real physical process.
  3. Cross-disciplinary methods are yielding surprises: string-theory math and AI are being applied to biological and mathematical problems, evidence suggests life rebounded faster after the Chicxulub impact, and some tumors can hijack nerve signaling to suppress local immunity.

Many Worlds and the Fine-Tuning Argument: A Reader's Dissent

Philosophy for the People w/Ben Burgis • 179 implied HN points • 13 Aug 23
📖 Philosophy Cosmology
  1. The post discusses the debate between cosmic designer and multiverse theories regarding fine-tuning in the universe.
  2. A subscriber named Gareth Morley argues in favor of the multiverse theory in response to the author's objections.
  3. The author highlights the complexity and nuances of the Fine-Tuning Argument and its implications for atheism.

A flicker in the dark

Cosmographia • 139 implied HN points • 03 Mar 23
🔬 Science Cosmology
  1. Time may seem vast when looking back, but in the grand scheme of things, it's just a fleeting moment.
  2. The universe started 13.8 billion years ago as a condensed point of infinite density.
  3. The post is only available for paid subscribers, offering exclusive content.

Why Cynics Were Dogs

Outlandish Claims • 19 implied HN points • 18 May 24
📖 Philosophy Cosmology
  1. Different beings perceive the world differently based on their 'umwelt', which shapes their unique view of reality.
  2. Diogenes, a philosopher, emphasized the interconnectedness of all matter and challenged the concept of intrinsic essence.
  3. Dogs, considered cynics, navigate the world primarily through scent, highlighting a continuous reasoning method distinct from discrete human reasoning.

Are Stars Conscious?

Secretum Secretorum • 707 implied HN points • 16 Feb 23
🔬 Science Cosmology
  1. Some scientists challenge the traditional definition of life, suggesting that stars exhibit life-like behaviors such as metabolism and reproduction.
  2. There are radical theories proposing that stars possess consciousness and engage in purposeful actions, influencing life on Earth.
  3. The concept of cosmological natural selection suggests that black holes may play a role in giving rise to new universes, embodying evolutionary principles at a cosmic scale.

Why the Discovery of Alaknanda Galaxy is a Big Deal

FutureIQ • 8 implied HN points • 04 Dec 25
🔬 Science Cosmology
  1. Scientists discovered the Alaknanda galaxy, which could change our understanding of how early galaxies formed after the Big Bang.
  2. Alaknanda is about 12 billion years old, meaning it formed just 1.5 billion years after the Big Bang, which is surprisingly quick for such a well-structured galaxy.
  3. The discovery suggests that existing theories about galaxy formation need to be revised because they expected more time was needed for galaxies to develop their spiral arms and flat disks.

Solar Flares and the Child's Mind

Charles Eisenstein • 3 implied HN points • 05 Jan 26
⛪ Faith & Spirituality Cosmology
  1. The sun and its flares might not be purely external physical events; they could reflect or respond to human affairs and feelings.
  2. Modern science and culture often dismiss the childlike, animistic sense that the sun, moon, trees, and other nonhuman things are watching us, even though many cultures and childhood intuitions treat the world as alive.
  3. Taking an animistic view can open us to different kinds of knowledge and perception, and sharing stories or conversations helps spread and reinforce those new intuitions.

Adding Color and Sound to the Tetractys

WaveGuide • 2 HN points • 07 Aug 24
📖 Philosophy Cosmology
  1. The Tetractys is a triangle with ten points that symbolizes harmony and universal relationships in music and nature. Its structure can help us understand connections between numbers, colors, and sounds.
  2. By visually organizing numbers using hexagons, we can see patterns in music and color. For example, numbers that are next to each other in the Tetractys relate to musical intervals like octaves and fifths.
  3. Adding color and sound to the Tetractys creates a deeper understanding of how music and visual art interconnect. This idea suggests that everything in the universe has a rhythm and can be related through these patterns.

What if the Great Filter is complacency?

inexactscience • 19 implied HN points • 20 Oct 23
📖 Philosophy Cosmology
  1. Complacency might be the reason we don't see aliens. Instead of self-destruction, advanced civilizations may just choose to stay comfortable where they are.
  2. Economic reasons for space exploration could fade as the Earth becomes richer. If we make energy and resources abundant, we may not feel the need to explore beyond our planet.
  3. As the human population is expected to decline, the drive for exploration may lessen. With fewer people, our focus might shift to improving life on Earth rather than colonizing new worlds.

On the Geography of Hell

Autoscriptorium • 19 implied HN points • 19 Feb 23
📚 Literature Cosmology
  1. Certain human principles like justice may seem inevitable, and there is a satisfaction in poetic justice.
  2. Dante's _Commedia_ intricately weaves together theology, history, and philosophy, creating a unique map of Hell and a spiritual journey.
  3. The medieval model of the universe, as seen in Dante's work, portrays Earth at the center surrounded by celestial spheres, demonstrating a cosmic order and divine influence.

The Cosmic Cadence

Worthy Patterns • 19 implied HN points • 05 Jan 25
⛪ Faith & Spirituality Cosmology
  1. The universe is seen as eternal, suggesting a connection to a supreme entity or force that binds everything together.
  2. Our souls are eternal and continue to exist beyond a single lifetime, meaning we are more than just our physical bodies.
  3. Actions have consequences, which is the idea of karma. What we do in life affects our future, and there are repeating cycles in the universe that we can learn from.

The Symphony of the Creative Word

Daniel Pinchbeck’s Newsletter • 13 implied HN points • 20 Feb 25
📖 Philosophy Cosmology
  1. Rudolf Steiner believed that nature is full of meaning, and everything in the universe is connected like a beautiful symphony. We aren't just separate beings; we are part of a larger cosmic community.
  2. Steiner taught that we should find balance in our lives between intellect and spirituality. Too much focus on technology and efficiency can lead us away from experiencing the deeper truths of life.
  3. He also envisioned that everything in nature reflects intelligence and purpose. This means our thoughts and feelings are tied to the universal consciousness, making nature not just a backdrop, but a living expression of our shared existence.

(Ad-free Video) What's New in Science With Sabine and Lawrence

Critical Mass • 6 implied HN points • 07 Jul 25
🔬 Science Cosmology
  1. There may be large reservoirs of hydrogen on Earth that could support a clean energy future with hydrogen fuel.
  2. The Vera C. Rubin Telescope in Chile is revealing more about the universe and helping scientists understand cosmic mysteries.
  3. AI might start to help design and improve coding systems, which could save energy in training models and even be useful in understanding the origins of life.

My Talk About the Sleeping Beauty Paradox

By Reason Alone • 16 implied HN points • 07 Nov 24
📖 Philosophy Cosmology
  1. The Sleeping Beauty paradox involves a coin flip that affects how often she wakes up, which raises questions about probability. People have different opinions on how she should assess the chance of heads when she wakes up.
  2. One group, called 'halfers', believes the chance of heads remains 50/50 since she doesn't gain new information about the coin when waking up.
  3. Another group, 'thirders', argues she should think there's a one in three chance it's heads because of how many times she might wake up, depending on the coin flip.

Live Critical Mass Interactive Zoom Q&A: June 22nd @ 10AM PT

Critical Mass • 4 implied HN points • 21 Jun 25
🔬 Science Cosmology
  1. There will be a live Zoom Q&A for paid subscribers on June 22nd at 10 AM PT. It's a great chance to ask questions and join the conversation.
  2. Subscribers can discuss recent podcasts, the upcoming book 'The War on Science', and various science topics. It's a fun space for lively discussions.
  3. Supporting Critical Mass helps keep the Origins Project and other programs running. Your financial help allows access to exclusive content and events.

Objects in the Night Sky

Natural Selections • 6 implied HN points • 03 Dec 24
🔬 Science Cosmology
  1. On a clear night, the sky can reveal amazing cosmic views, including planets and stars. Sometimes, what we see in the sky can surprise us because it looks different than we expect.
  2. Using binoculars or telescopes can help us learn more about celestial objects. However, we might still make mistakes about what we see, like confusing planets for moons.
  3. Our observations can change with new information. Just because we see something one way doesn't mean it's the only way to understand it; learning the facts can change our view of what's in the sky.

Eclipse

roon’s blog • 8 implied HN points • 21 Apr 24
📖 Philosophy Cosmology
  1. Experiencing a solar eclipse can make you feel connected to the universe. It’s a moment where you realize just how small we are in the grand scheme of things.
  2. During an eclipse, the normal rules of nature seem to change, creating a sense of awe and deep emotion. This powerful event can bring people together in joy and wonder.
  3. The eclipse serves as a reminder that there are bigger forces at play in the universe. It brings clarity about life, showing that our experiences are just part of a larger cosmic dance.

Questions

ExpandAI Newsletter • 0 implied HN points • 02 Jul 23
🔬 Science Cosmology
  1. Questions raised about the big bang and gene editing
  2. Exploration of nanotech medicine and human-machine merger
  3. Curiosity about time travel, superintelligence, and communication with other species

Exploring Time Beyond the Technological Singularity

The Future of Life • 0 implied HN points • 30 Apr 23
🔬 Science Cosmology
  1. The universe is much older than human civilization, and its history shows a trend of increasing complexity. We might soon face a singularity, which could change everything very rapidly.
  2. After the singularity, the rate of change may slow down due to physical limits. There's a question about whether complexity could reach a peak and stay there for a very long time.
  3. The idea of time might be different if we reach a level of intelligence that allows us to manipulate reality itself. This could lead to a future that is very strange and beyond our current understanding.

Anna Eisenman: Some Sign Pt2

Do Not Research • 0 implied HN points • 15 Feb 22
🎨 Art & Illustration Cosmology
  1. The essay video series 'Some Sign Pt2' by Anna Eisenman delves into superstition and its relation to media events of the early 2000s, exploring themes of apocalyptic thinking.
  2. The work investigates the intersection of technology and magical thinking in the context of generational metaphysics, questioning concepts of psychic abilities, mortality, and material existence.
  3. Eisenman's exploration navigates the boundaries between reality and fiction, personal and historical time, and the influence of images on shaping individual cosmologies.

Fragments, Chapter 1, pp.22-28 - Reading Club posting 4

Journal of Gurdjieff Studies • 0 implied HN points • 30 Sep 22
⛪ Faith & Spirituality Cosmology
  1. Gurdjieff's teachings focus on the importance of 'facts' and the gradual unveiling of deeper truths, emphasizing the journey over instant revelations.
  2. Gurdjieff discusses the influence of planetary forces on war, viewing conflicts as outcomes of cosmic tensions rather than purely human actions.
  3. Gurdjieff's ideas on art highlight the distinction between subjective and objective art, suggesting that true art is a mathematical, calculated expression that conveys consistent emotions across different levels of perception.

Fragments, Chapter 4, pp.77-81 Reading Club posting 15

Journal of Gurdjieff Studies • 0 implied HN points • 16 Dec 22
📖 Philosophy Cosmology
  1. Every phenomenon results from the meeting of three opposing forces: active, passive, and neutralizing - the Law of Three.
  2. Understanding the Law of Three helps in self-reflection and grasping the dynamics of change and growth in individuals and groups.
  3. The 'ray of creation' concept explains the formation of worlds and a hierarchy of forces, highlighting our place in the universe.

Fragments, Chapter 5, pp...., - Reading Club posting 16

Journal of Gurdjieff Studies • 0 implied HN points • 06 Jan 23
⛪ Faith & Spirituality Cosmology
  1. The 'ray of creation' concept explains the growth of the universe from the Absolute to the moon, contradicting common scientific beliefs.
  2. The moon's influence on earth includes feeding on organic life and controlling actions, showing a deep interconnectedness in the cosmos.
  3. Understanding the materiality of the universe involves recognizing different levels of matter and energy, where vibrations play a crucial role in the structure of the world.

Where are all the aliens?

The Future of Life • 0 implied HN points • 22 Apr 23
🔬 Science Cosmology
  1. The universe needed enough time for complex life to develop. This means many alien civilizations might have formed around the same time.
  2. Expansionary alien civilizations are likely to dominate the universe. These fast-spreading aliens could take over quickly without giving others a chance to notice.
  3. Most alien life forms might actually be simulations. They could be creating these to understand and prepare for meeting other advanced civilizations.