The first session
We start Sunday, September 13.
One idea, looked at together. We watch something short, then talk it through in our own words. Everything on this page is here so you can read ahead if you want to, and you do not need to read a word of it to come.
First session Sunday, September 13 12:00 – 1:30 PM Ethical Society of Mid Rivers 117 Triad Center West, O'Fallon, MOChoose one direction to explore
Three ways to go.
The room picks where we head next. Each direction already has sessions written up, so you can see what any of them would feel like before you choose.
Cosmos & Physics
Space, time, matter, energy, and the structure of reality.
20 sessions ready →Life & Biology
Evolution, cells, DNA, consciousness, and living systems.
23 sessions ready →Earth & Ecology
Climate, ecosystems, biodiversity, and our place in nature.
12 sessions ready →Only the first session has a date so far. Everything else is a reading path rather than a calendar. We will post new dates here once the group settles into a rhythm.
Cosmos & Physics
Space, time, matter, energy, and the structure of reality.
20 written upOne thread runs from the second on your wrist out to the edge of the observable universe. The first session is where it starts.
Season 1, The Shape of Reality (9)
- 02 No Universal Now There is no single moment everyone shares. read ahead
- 03 The Twins Travel fast enough and you return younger than your twin. read ahead
- 04 Relativity You Can Hold Your phone's map only works because we corrected for bending time. read ahead
- 05 Gravity Is Not a Force What we feel as gravity is the shape of spacetime itself. read ahead
- 06 Mass Bends Light Heavy things bend the path of light around them. read ahead
- 07 The Shadow of a Black Hole We photographed the edge of where light can't escape. read ahead
- 08 Ripples in Spacetime Colliding black holes shake the fabric of space, and we felt it. read ahead
- 09 The Oldest Light The faint glow filling all of space is the universe's baby picture. read ahead
- 10 The Universe Pulls Apart Space itself is stretching, and the stretch is speeding up. read ahead
Also in this direction, 11 more to read
Scale & Pattern (9)
- 01 95% Unknown (The Dark Sector) Everything we can see, stars and planets and you, is only about 5% of the universe. The other 95% is dark matter and dark energy that we can name and measure but cannot explain. read ahead
- 02 Branching Everywhere (Fractals From Rivers to Neurons) A lung, a river delta, a tree and a neuron all branch in the same way because they are all solving the same problem with the same simple rule, repeated. read ahead
- 03 Information & the Shape of Reality The amount of information a region can hold scales with the area of its boundary, not the volume inside it. That hints that 3D reality might be encoded on a 2D surface like a hologram. read ahead
- 04 Made of Stars (Cosmic Chemistry of You) The hydrogen in your body is as old as the universe, and almost every heavier atom in you was manufactured inside a star that exploded before the Sun existed. This is bookkeeping, not metaphor. read ahead
- 05 Pulsars: Nature's Atomic Clocks, Born From Collapse A dead star the size of a city, spinning hundreds of times a second, keeps better time than almost anything humans have built. read ahead
- 06 Quantum Reality (Verified Physics vs Mysticism) Entanglement is real and has been verified across more than 1,200 kilometres. But a warm, wet human body destroys that delicate quantum state in a fraction of a trillionth of a second, which is exactly why "we're all quantum-connected" does not follow from it. read ahead
- 07 Reading Cosmic History in Atoms A single speck of dust in a meteorite can be a literal physical sample of one specific star that died before our Sun existed, and the ratios of its isotopes are the star's signature, still readable today. read ahead
- 08 The Dials of Reality (Fine-Tuning as Honest Mystery) A handful of the universe's fundamental constants sit inside vanishingly narrow ranges that permit stars, atoms, and chemistry. After a century of physics, no one knows why. read ahead
- 09 The Scale of Things Reality stretches across so many orders of magnitude that the world around you is mostly empty space, and the universe itself is mostly stuff we can't yet name. read ahead
Astrobiology & Frontier (2)
- 01 Are We Alone? (And How Would We Know?) A telescope smelled the air of a world 120 light-years away and found gases that life can make. But "a gas life can make" and "life" are different claims, and the honest, thrilling work is living inside that gap. read ahead
- 02 JWST Is Rewriting the Early Universe A telescope that can see almost back to the beginning has found galaxies that look too big, too bright, and too chemically mature to exist as early as they do. The textbook story of how the first galaxies formed is being corrected, in public, right now. read ahead
Life & Biology
Evolution, cells, DNA, consciousness, and living systems.
23 written upWhere life came from, how one cell decides what to become, and how a few pounds of tissue ends up experiencing anything at all.
Mind & Consciousness (11)
- 01 37 Trillion Cells That Learned to Be Aware The "you" doing the reading right now is not a thing inside your head. It's a model your brain is building, this second, out of about 86 billion neurons inside a body of roughly 37 trillion cells. read ahead
- 02 Belief Changes the Body (The Measurable Placebo) A belief is not just a thought in your head. It can register as a real change in your blood pressure, weight, and body chemistry. read ahead
- 03 Can You Measure Consciousness? (PCI) A magnetic tap to the skull plus an EEG recording of the echo turns the most private fact about a person, whether anyone is home, into a number you can read from outside the body. read ahead
- 04 Intelligence Without a Brain (Slime Molds & Single Cells) A single brainless cell can solve a maze and rebuild the layout of the Tokyo rail network, which means memory and problem-solving don't need neurons at all. read ahead
- 05 Substrate-Independent Intelligence (Brains ↔ Machines) When a computer learns to see, it independently rebuilds the same edge → texture → object layers your visual cortex evolved over half a billion years, which suggests that seeing is a property of the problem and not of the meat. read ahead
- 06 The Brain That Feels Others (Mirror Neurons & Animal Empathy) A rat will work to free a trapped cagemate even when chocolate is the alternative, because caring about others is built into the wiring of social-mammal brains, not bolted on by culture. read ahead
- 07 The Microbial Brain (Electricity Before Neurons) Slime-like mats of bacteria pass electrical waves to each other using potassium ion channels closely related to the ones in your neurons. The basic electrical trick behind thought was running in single-celled life more than a billion years before brains existed. read ahead
- 08 Where Does Your Body End? (The Rubber-Hand Illusion) The felt boundary of "you" is not fixed flesh. It's a live guess your brain updates from incoming sensory data, and it can be talked into adopting a fake hand in about a minute. read ahead
- 09 Why You Can't Decide Without Emotion (Somatic Markers) Damage the brain's emotion centers and your IQ stays intact, but you lose the ability to choose at all. Emotion isn't the enemy of reason. It's the part of reasoning that picks. read ahead
- 10 You Can See Thought Change the Brain (Meditation & Neuroplasticity) The same repeated act of paying attention physically remodels the brain region doing the attending, so you can watch a mental habit show up as a change in tissue. read ahead
- 11 Your Brain Is a Prediction Machine You don't see the world. You see your brain's running best guess about it, corrected only when reality pushes back. read ahead
Also in this direction, 12 more to read
Life & Deep Time (9)
- 01 Evolution's Greatest Hits (Convergent Evolution) When the same survival problem comes up again and again, evolution keeps inventing the same answer from scratch, eyes dozens of times over and flight in at least four separate lineages, because physics and chemistry only allow so many designs that actually work. read ahead
- 02 Life Is Physics, Not a Vital Force (The AlphaFold Case) An AI taught itself to predict how proteins fold into their working shapes, and it only worked because life runs on consistent, learnable physical laws rather than a vital essence. read ahead
- 03 One Code, One Origin (LUCA and the Tree of Life) Every living thing on Earth, from bacterium to mushroom to oak to whale to you, runs on the same molecular code, which is the strongest evidence we have that all life shares one ancestor roughly 3.8 billion years deep. read ahead
- 04 Origin of Life From Ordinary Chemistry (Miller–Urey & Beyond) Spark an imitation of the early atmosphere and the building blocks of life assemble on their own. The chemistry that led to life is ordinary physics running wherever energy crosses a gradient. read ahead
- 05 Same Blueprint, 200 Jobs (Differentiation Without a Controller) Every cell in your body carries the same complete genome, yet roughly 200 cell types build a working human from purely local chemistry, with no central planner anywhere in charge. read ahead
- 06 The Ghosts in Your Genome (Neanderthal & Denisovan DNA) Most people alive outside Africa carry a few percent of DNA from now-extinct human cousins, and we know it because we read those vanished lineages back out of the genomes of the living. read ahead
- 07 The Temple Before the Farm (Göbekli Tepe) Hunter-gatherers quarried and raised 50-ton stone pillars roughly 11,500 years ago, thousands of years before farming, writing, or metal tools. The urge to build something monumental came first, and agriculture came after. read ahead
- 08 When Earth Had Many Humans (The Bushy Family Tree) For almost all of our deep past, Earth was home to several kinds of human at once, and we are the last branch standing on a bush, not the tip of a ladder. read ahead
- 09 You Are a Confederation (Mitochondria as Domesticated Bacteria) The powerhouses in every one of your cells were once free-living bacteria swallowed whole roughly two billion years ago, which makes you not a single organism but a merger of at least two ancient lineages that never fully came apart. read ahead
Astrobiology & Frontier (2)
- 01 The Energy Paradox (Constrained-Energy Metabolism) Move two or three times as much as a desk worker and your body may still burn about the same total energy in a day, because it quietly defends a near-constant daily budget. read ahead
- 02 Xenobots: Cells That Build a New Self When frog skin cells are freed from the embryo, they spontaneously reorganize into self-moving, self-repairing "xenobots," which reveals that what body to build is a negotiation among cells rather than a fixed blueprint locked in DNA. read ahead
Earth & Ecology
Climate, ecosystems, biodiversity, and our place in nature.
12 written upOne planet read as a working system. What keeps it habitable, what has already flipped, and the one hole in the sky we managed to close.
Life & Deep Time (2)
- 01 A Cup of Water Knows Who's There (Environmental DNA) Every living thing constantly sheds its DNA into the water, soil, and air around it, so a single filtered cup of river water can be sequenced into a near-complete list of the species living there, with no nets, traps, or sightings required. read ahead
- 02 Five Times Life Almost Ended (The Mass Extinctions) Life has come within reach of total collapse at least five times. The Permian "Great Dying" erased roughly 96% of marine species. Each near-ending cleared the stage for what came next, including us. We are here because the dinosaurs died. read ahead
Also in this direction, 10 more to read
The Living Earth (10)
- 01 Earth's Habitability Is Not Guaranteed Earth stays alive because it sits in a narrow sweet spot, with enough internal heat, liquid water, and the right size to keep its surface recycling. Mars and Venus, our nearest rocky siblings, both missed it. read ahead
- 02 Land Restoration as Planetary Thermodynamics If we let the cropland that feeds livestock and fills gas tanks grow back into native forest, the planet stacks two climate wins at once. Carbon comes out of the air, methane stops being emitted, and most of the payoff lands in the first few decades. read ahead
- 03 The Deep Biosphere (More Life Below Than Above) Kilometers underground, in rock where sunlight never reaches, lives 15–23 billion tons of microbial carbon, roughly all of Earth's plant life again, running on rock-and-water chemistry instead of the sun. More living matter sits below the surface than above it. read ahead
- 04 The Great Oxidation Event (Life Remakes Its Planet) Around 2.4 billion years ago, microbes "exhaling" oxygen as metabolic waste poisoned most of the life on Earth and rebuilt the atmosphere. The breathable air you depend on began as ancient pollution from the planet's first ecological catastrophe. read ahead
- 05 The Hole We Fixed (Catalysis & the Ozone Layer) A single chlorine atom can wreck on the order of 100,000 ozone molecules. Even so, humanity diagnosed the damage, predicted exactly what stopping it would do, acted globally, and the satellites now show the hole healing on schedule. read ahead
- 06 The Ocean Has Been Covering for Us For two centuries the ocean has quietly absorbed roughly a quarter to a third of our carbon dioxide and over 90% of the extra heat we've trapped, sparing us from the full force of the warming we caused. It has paid for that service by turning measurably more acidic, a buffer that is real, finite, and weakening. read ahead
- 07 The Oldest Drink (Water Through Deep Time) The water you drank today has been recycled an unimaginable number of times, passing through dinosaurs, ancient ferns, and the first cells. Yet some of it comes from deep aquifers that took thousands of years to fill and are now being pumped dry as if they were endless. read ahead
- 08 The Solid Ground Is a Conveyor Belt (Plate Tectonics) The continents are rafts drifting on a slow-churning mantle engine that doubles as Earth's long-term CO₂ thermostat. The man who first saw it, Alfred Wegener, was right about the moving continents and wrong about why they moved. read ahead
- 09 The Wood Wide Web (Fungal Networks) Beneath every forest, fungal threads wire plant roots into one living, self-routing distribution network that moves water, food, and electrical signals through the soil. read ahead
- 10 Tipping Points: Why Nature Flips Instead of Fades Ecosystems don't wear down in a straight line. Past a hidden threshold they snap into a whole new state, because Earth is a web of feedback loops with cliff edges, not a dial you can turn back. read ahead
Chemistry runs through all three.
It has no direction of its own because it does not need one. Chemistry is how stars build the atoms in your hand, how a cell keeps itself running, and how one thin layer of the sky healed after we stopped tearing at it. The 10 chemistry illustrations live in the library, and the write-ups sit with whichever direction they belong to.
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