Category Archives: Science

THE CIRCLE AND THE FLAG

Two nuclear reactors are bound for the moon’s south pole. Neither is coming home.

The Outer Space Treaty forbids owning the moon by claim, by use or by occupation. It says nothing about a ring of ground no one may enter, or about how long such a ring may last. The United States wants its reactor running by 2030; Russia promises one for China by 2036.

Chess makes a distinction the Outer Space Treaty does not. A piece stands on one square and commands others. Games are decided by squares no piece ever occupies, and a player who sees only where the pieces stand will lose to one who sees where they reach.

In late August 2026, NASA asked contractors to prepare a nuclear reactor that could survive the voyage to the moon and run without maintenance near its south pole, the New York Times reported in October. The agency wants it ready to launch by December 2030. Russia, under a partnership with China, has set 2036 for a reactor of its own. The machines are modest. NASA’s would produce about 20 kilowatts, roughly what 16 American homes draw, and Russia’s up to half that. The ground is modest too. NASA named 13 candidate landing regions for its first crewed return in 2022 and narrowed them to nine in 2024, all on a handful of ridges and crater rims near the pole, where the sunlight is nearly constant and the shadowed craters beside them are thought to hold ice. That is the whole prize: a few named places on a body whose surface is larger than Africa.

A reactor at power cannot be approached safely without shielding. On Earth it sits inside a containment building. On the moon, the Times reports, it would more likely sit inside a no-go zone, a ring that neither astronauts nor machines may safely enter. The treaty that governs the moon, signed in 1967, forbids “national appropriation by claim of sovereignty, by means of use or occupation, or by any other means.” Sovereignty, use and occupation are three ways of standing somewhere. The text says nothing about denial. So a handful of the only usable sites on the moon can be made unenterable by acts that break no rule. The one instrument that provides for ending such a zone is not a treaty but a political declaration, signed by one of the two builders and not the other.

And neither reactor is coming home. When a reactor on Earth reaches the end of its life, decommissioning takes years. On the moon, according to Selam Gebrekidan’s reporting in the Times, both NASA and the Russian agencies say they would simply leave the radioactive material behind. The zone will not end when the machine does. In chess, remove a piece and every square it commanded is free at once. The moon is being offered a piece that keeps its squares.

I

Twenty Kilowatts

The reactor NASA wants is small, and nobody has calculated the load. The Times reports that for the first years both programmes need only enough power to keep equipment warm and charge rovers, that solar and radioisotope systems would serve, and that how much electricity a base would need is open to speculation. Two powers are racing to install a power source for a base that does not exist, against a demand nobody has measured. NASA’s machine, as the Times describes it, must work for five years with no intervention; the Russian design, called Selena, for a decade. Neither is a power station. Each is built to carry a base through the dark, and at the pole the dark comes in gaps of a day or two rather than weeks, under a sun that never climbs far above the horizon. That is why both programmes say a reactor must come.

The place is small too. Of the moon’s 37.9 million square kilometres, the parts that matter for a base are the ones where two things meet: ridges high enough to catch sunlight for most of the lunar day, and craters deep enough that sunlight has never reached their floors. The first supply power and bearable temperatures. The second, NASA says, “can preserve resources, including water,” from which oxygen and hydrogen can be extracted for life support and fuel. Such places are few, and they cluster at the south pole. In 2022 NASA named 13 candidate regions for its first crewed landing there, and in October 2024 narrowed them to nine, a short list of massifs, rims and plains whose names will become familiar. Those are landing regions, not reactor sites, which no one has announced. But they are the published evidence of which ground is worth having, and the Chinese-led International Lunar Research Station is aimed at the same pole.

A reactor set on that ground does not command a clean circle. In open space a radiation radius is a sphere. On a crater rim it is cast like a shadow across whatever lies in reach. Set behind a ridge, its reach falls on one slope and not the other. Set near a crater, where the approaches are few, it can cover them. Its zone will be shaped by the terrain it sits in, and so will the question of what the zone denies.

Oblique view of a lunar crater at the south pole: a small reactor with a crown of radiator fins stands on the rim, and a line of lit beacon pylons marks its exclusion zone, running along the rim, down the one gentle slope into the crater and on into the shadow of its floor.
A zone on ground follows the ground: the beacon line runs along the rim, drops down the one slope into the crater and continues into the dark where the floor begins. Generated with Gemini for this essay; it depicts no actual site.

Nobody wanted this yet. A fission reactor is a later need, brought forward. NASA moved its date up because Russia is building one. Russia is building one because China, in the one core task it appears to have delegated, asked it to. Nothing in the record says Moscow set its clock by Washington’s. So only one player is in zugzwang, the position in which the obligation to move is itself the harm, and it is the one bound by the Accords. Every move it has — an earlier launch, a bigger reactor, a looser rule — takes something from the position both sides depend on: a moon that no one owns. The treaty that guarantees it was written for players who stand on squares. The next move puts down a piece that reaches.

II

By Any Other Means

The treaty’s second article is one sentence long. Outer space, including the moon, “is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means.” Appropriation is the term of art, and it means taking a thing as one’s own. Sovereignty, use and occupation are three ways of doing it: declaring, working, staying. Of the three, use is the widest, and it was put there to catch exploitation that stops short of a flag. A reactor is a use, and a specialist’s first answer will be that a reactor whose radius denies ground is appropriation by means of use. But a radius takes nothing. It makes ground nobody’s rather than somebody’s. The treaty forbids turning the commons into property. It says nothing about turning it into waste. Denial is not acquisition. No claim to any part of the moon has ever been recognized by any state, and no clause of the article mentions keeping others from a part of it.

The ninth article is where the radius enters, and it enters as a duty rather than a loophole. States must conduct their activities “with due regard to the corresponding interests of all other States Parties,” must avoid harmful contamination of celestial bodies, and, where an activity “would cause potentially harmful interference with activities of other States Parties,” must undertake “appropriate international consultations before proceeding.” The duty falls on the state that acts. The builder of a reactor owes due regard to everyone else’s interests, which on a straight reading is a constraint on where it may put the thing. The builder’s answer is that the zone is the due regard: a ring that keeps everyone else safe from what it has built. So one clause both demands the zone and forbids what the zone does, and nothing in the text says which reading governs. The two articles close on each other: obeying the ninth produces the condition the second forbids.

Eight years earlier the Antarctic Treaty had frozen the sector claims that seven nations had drawn across the map of a continent, and the two texts share four prohibitions almost word for word. Antarctica “shall be used for peaceful purposes only,” the earlier treaty says, and forbids “military bases and fortifications,” “military maneuvers” and “the testing of any types of weapons.” The moon treaty repeats all four. But the Antarctic text has a fifth article that the space text does not: “Any nuclear explosions in Antarctica and the disposal there of radioactive waste material shall be prohibited.” An American reactor, SNAP-10A, had already flown, in April 1965, two years before the space treaty was signed, and the treaty says nothing about a reactor stopping.

The law of the sea, drafted fifteen years later, shows what such a rule looks like. Article 60 is not a legal parallel. Its zones sit in waters where the coastal state already has sovereign rights, not in a commons. It is a drafting model, and it shows the two devices the moon’s treaty lacks: a zone with a stated maximum, 500 metres from the structure’s outer edge, and a duty to remove what is finished — installations “which are abandoned or disused shall be removed.” The ice treaty banned leaving the waste. The sea treaty bounded the zone and required removal. The moon’s treaty did neither, no instrument since has set a maximum for a lunar safety zone, and neither programme has published the radius it intends.

III

The Case for the Zone

The case for the reactor begins with the dark. Away from the poles a lunar night lasts about fourteen days, and the pole is not exempt so much as different. The best-lit ground there, by NASA’s own measurement, is lit up to 90 percent of the time, and nowhere on the moon is lit always. A 2010 NASA study found a site near Shackleton crater sunlit about 240 days a year, with its longest stretch of darkness about a day and a half. The sun never rises far above the horizon, so solar panels must stand on edge and are shadowed by the very terrain that makes the site worth having. The radioisotope generators that have powered spacecraft since the 1960s make watts, not kilowatts. An expanded base, the Times reports, would need far more power than those systems can give. On this reading the reactor is not an instrument of policy. It is the answer to a place that is lethally short of energy.

The safety case is nearly as strong. Both NASA and Russia say their reactors will be launched cold, never having been switched on, and the Times reports that nuclear engineers regard cold uranium fuel as posing little radioactive threat even if it tumbles to Earth. The fuel NASA specifies sits below weapons-usable enrichment. On the safety case as its advocates put it, a cold launch materially reduces the risk, and the reactor becomes dangerous only once it is running, on the moon, where no one lives.

The third pillar is the law itself. The Artemis Accords, the political declaration that 59 nations have signed, provide for “safety zones” around lunar operations. The Accords say a safety zone “should be the area in which nominal operations of a relevant activity or an anomalous event could reasonably cause harmful interference,” that signatories “commit to respect the principle of free access to all areas of celestial bodies,” and, at Section 11, paragraph 7(c), that “safety zones will ultimately be temporary, ending when the relevant operation ceases.” The defence writes itself. Nobody is appropriating anything. The zone is a coordination device, published in advance, bounded by function, and gone the day the plug is pulled.

Each pillar holds. The moon is dark, the launch is clean, and the Accords do bind their signatories to free access and to zones that end. Then come the two facts the defence does not survive.

The first is that only one of the two builders has signed the promise. The Accords have no force beyond their signatories, and Russia and China are not among the 59. They are building the International Lunar Research Station outside that framework. The guarantee that a lunar safety zone will be temporary binds the United States and does not touch the other reactor at all. The symmetry of the race is false at the point where it matters: one builder has also signed something the other has not. One has accepted a constraint it may be about to breach by leaving its reactor where it stands. The other has accepted nothing. And the promise itself was drafted with an escape in it. A drafter who meant zones end when operations end does not write ultimately. The adverb lets a zone persist for a very long time while still being called temporary, and it sits in the only sentence in any instrument that says a zone will end.

The second fact is the harder one. Radioactivity decays. A reactor that is switched off stops fissioning at once, but its core stays hot with the decay of its fission products, intensely at first and then less so for a very long time. A spent reactor becomes approachable, by degrees, over decades and centuries. So the zone is not permanent, only long, and a reader who knows this will conclude that the radius has an end after all, and that the end is a matter of physics rather than law.

The answer is not an argument but a place.

IV

Rules for the Wrong Place

There is a body of law for reactors in space. It was written for the sky, and it is written in the grammar of the sky. The Principles Relevant to the Use of Nuclear Power Sources in Outer Space were adopted by the General Assembly on December 14, 1992, as resolution 47/68, fourteen years after a Soviet reactor came down over Canada. Their operative paragraphs on reactors permit three things: operation “on interplanetary missions,” operation “in sufficiently high orbits,” and operation in low orbit on condition that the reactor is afterwards “stored in sufficiently high orbits.” A sufficiently high orbit is one “in which the orbital lifetime is long enough to allow for a sufficient decay of the fission products to approximately the activity of the actinides.” That is the Principles’ entire doctrine of disposal, and it is a doctrine of altitude and time. Put the thing where nothing lives, and wait.

A reactor at the lunar pole satisfies the first half of that rule and inverts the second. It will rest where nothing lives yet, and it will rest there for as long as the orbital rule contemplates. But the orbit the Principles had in mind is a trajectory nobody walks, and the pole is the one piece of ground that both programmes have named as the place they intend to go. The disposal rule for the sky, applied to the surface, produces the radius. The law’s idea of success and the pole’s idea of denial are the same object at a different address.

The Principles are also out of date about the fuel, and out of date in the direction that matters. Principle 3 instructs that “nuclear reactors shall use only highly enriched uranium 235 as fuel,” which in 1992 was the engineer’s choice, because it is lighter and cheaper to launch. Representative Bill Foster, a physicist, told the Times what highly enriched uranium is on the ground: a machine shop and a little high explosive away from a credible weapon. NASA’s documents now specify high-assay low-enriched uranium, which sits below weapons-usable enrichment, and which Russia produces in greater quantity than anyone, and which the United States has banned from Russian sources since 2024. The only rule the United Nations has ever written about the fuel of a space reactor commands the leading builder to do the opposite of what it is doing, and the alliance that has not disclosed its fuel is the one whose older reactors used the fuel the rule prescribes. None of this binds anyone. A General Assembly resolution is a recommendation, and the United Nations working group that Leopold Summerer leads exists to encourage states to follow such rules, not to enforce them.

The Principles are at their most exact on the one moment everyone agrees is dangerous. The United States and Russia say their reactors will be unirradiated until they arrive, and the Times reports that nuclear engineers regard cold fuel as a small radiological threat even if it falls back to Earth. The Principles take the same view and set down what a cold reactor must survive without going critical: “rocket explosion, re-entry, impact on ground or water, submersion in water or water intruding into the core.” A reactor had come down over Canada before the clause was written. Water moderates neutrons; a core that is safely subcritical in air can be critical in the sea; most launch pads stand beside water. “This is the moment when there is a lot of risk,” Summerer told the Times. In October 2019 a State Department official told the General Assembly’s First Committee that a Russian missile which had lain on the bed of the White Sea since a failed test had, when it was recovered that August, produced “the result of a nuclear reaction.” At least five workers died, the Times reports. Russia said the missile was not powered by a reactor. Nuclear experts told the Times that a reactor going critical in water is probably what happened: the event the clause was written to prevent, in the country with more space reactors behind it than any other.

And the law has been tested once on the ground, in the only way it knows. On January 24, 1978, Kosmos 954 re-entered over the Northwest Territories and scattered radioactive debris across a search area of more than 124,000 square kilometres. The cleanup was called Operation Morning Light; it ran through October, and almost none of the fuel was ever found. Canada billed the Soviet Union just over six million Canadian dollars under the 1972 Liability Convention, and the Soviet Union paid about three million. That is the only time international law has been asked what to do when a reactor comes to rest where it should not, and its answer was to price the damage and send an invoice. On Earth a reactor’s resting place is a misfortune and not an asset. On the moon the asset is the resting place. The Convention knows who pays. It has no idea who is owed. Denial of ground in a commons injures nobody in particular, and nobody in particular has a claim.

The law of the space reactor is a law of the moving piece. It knows what the piece must survive on the way, what fuel it may carry and how high it must be parked when its work is done. It has no sentence for a piece that has stopped on the one square everybody wanted, because in the sky the stopping was the solution.

V

What Stays

Chess has one premise so basic that it is never written down: a piece can be lifted. Every rule of the game assumes it. Capture, retreat, resignation, the pieces back in the box; the squares a piece commanded are free the moment the hand closes on it. The reactor is the first piece offered to the moon that the premise does not cover. It will be set down on a named ridge by a lander nobody has yet built, it will run for five years without a hand touching it, and then, by the stated intention of both builders, it will stay. The question is no longer what a piece commands. It is what a piece that cannot be lifted commands, and for how long.

The Earth has answered that question once. On May 2, 1986, six days after the fourth reactor at Chernobyl burned, a Soviet government commission drew a circle of thirty kilometres around it and ordered the whole of it cleared. The circle was drawn by a state that no longer exists. It is administered today by an agency of a state that was not then sovereign, the State Agency of Ukraine on Exclusion Zone Management, and it covers about 2,600 square kilometres, having been enlarged in 1997 to take in ground the wind had reached. The physics of the place has followed the curve the safety case rests on: the short-lived isotopes are long gone and much of the zone is less dangerous than it was. The line has not followed the curve. Forty years on, it is a border with checkpoints, closed to visitors since the invasion of 2022, and the building at its centre is a war target. On February 14, 2025, a Russian drone struck the New Safe Confinement, the arch completed in 2019 to hold the ruined reactor for at least a hundred years; it opened a hole in the cladding and damaged the crane system inside, and the European Bank for Reconstruction and Development puts the repair at a minimum of €500 million, to be finished by 2030. The zone is not permanent. It is only long, and this is what long has meant in practice: a radius that outlived its author, acquired a bureaucracy, became a frontier, and drew fire from a third party in a war its drafters could not have imagined, all because of what stayed at the centre.

Fourteen years before the fire, two Soviet novelists had described something with the same shape. In Roadside Picnic, published in 1972, Arkady and Boris Strugatsky imagined Zones left behind by visitors who stopped on Earth briefly, left their litter, and moved on, and the people who crept in after them were called stalkers. By way of Tarkovsky’s 1979 film Stalker and a 2007 video game, the book’s word became the word for those who enter the real zone without permission. The novel’s title is its argument. The visitors meant nothing by what they left. The zone was not a claim and not an attack. It was the residue of someone else’s convenience, and it governed the lives of everyone who lived at its edge for as long as it lasted.

That is the shape of the thing the moon is being offered. The radius has an end, and the end is a matter of physics, and zones on Earth have in fact contracted as the physics changed. Japan has lifted its Fukushima evacuation orders in stages as dose rates fell, and in August 2022 the order came off part of Futaba, one of the two towns that host the plant. But zones shrink from the outside in, and they have never reached the middle. Fukushima has given back town after town and the plant site remains closed; at Chernobyl the centre is what is under a €500 million repair. What was returned was contaminated ground around a reactor. What was never returned was the reactor.

The lunar zone is a centre with no periphery. There is no dispersed fallout to clean and no farmland anyone wants back; the ring is the asset, the ridge and the approaches and the ice, so the one mechanism by which terrestrial zones have ever contracted has nothing to work on. The lunar zone will be drawn by its builder, under a declaration that promises it will “ultimately” end, or by a builder that has promised nothing, and no instrument names who may draw the second line, the one that says the first has expired. The Outer Space Treaty forbids the flag. It has nothing to say about the circle, and the circle is what stays.

The first reactor is scheduled to stop in the middle of the 2030s, when the second is scheduled to start. Somebody may be standing at the pole then, under one declaration or none, looking at a ring on a ridge that nobody owns and nobody may enter. Whether they call it a precaution or a border is the smaller question. The larger one is whether a place no one can enter is owned, or only lost, and nothing yet written says who gets to decide.

❧

Sources: the reactor programmes, dates, power levels, fuel, launch safety, the White Sea and Kosmos 954 as reported by Selam Gebrekidan, “Superpowers Race to Put Nuclear Reactors on the Moon,” The New York Times, October 4, 2026. Treaty texts read at source: the Outer Space Treaty (1967), Articles II and IX; the Antarctic Treaty (1959), Articles I and V; the UN Convention on the Law of the Sea (1982), Article 60; General Assembly resolution 47/68 (1992), Principles Relevant to the Use of Nuclear Power Sources in Outer Space, Principle 3; the Artemis Accords (2020), Section 11. NASA on Artemis III candidate regions (2022, 2024), on polar illumination (Mazarico et al., 2010; LROC, 2019) and on the moon’s radius. The 2019 State Department statement from Arms Control Today and RFE/RL. Operation Morning Light from The Canadian Encyclopedia. The Chernobyl zone’s establishment, area, administration and closure from secondary reporting, matched across at least two accounts; the New Safe Confinement from the European Bank for Reconstruction and Development at source. Fukushima evacuation orders from Japan’s Ministry of the Environment.

Header and interior images generated with Gemini for this essay. Drafted with Claude Fable 5.1 and Claude Opus 5.5; literary editing by Claude Opus 5; copy editing by Gemini.

THE DEEP TIME OF DOUBT

How an earthquake and a wasp led Charles Darwin to replace divine design with deep time—and why his heresy still defines modern thought.

By Michael Cummins, Editor, October 7, 2025

“There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved.”
— Charles Darwin, 1859

The ground still trembled when he reached the ridge. The 1835 Valdivia earthquake had torn through the Chilean coast like a buried god waking. The air smelled of salt and sulfur; the bay below heaved, ships pitching as if caught in thought. Charles Darwin stood among tilted stones and shattered ground, his boots pressing into the risen seabed where the ocean had once lain. Embedded in the rock were seashells—fossil scallops, their curves still delicate after millennia. He traced their outlines with his fingers—relics of a world that once thought time had a purpose. Patience, he realized, was a geological fact.

He wrote to his sister that night by lantern: “I never spent a more horrid night. The ground rocked like a ship at sea… it is a strange thing to stand on solid earth and feel it move beneath one’s feet.” Yet in that movement, he sensed something vaster than terror. The earth’s violence was not an event but a language. What it said was patient, law-bound, godless.

Until then, Darwin’s universe had been built on design. At Cambridge, he had studied William Paley’s Natural Theology, whose argument was simple and seductively complete: every watch implies a watchmaker. The perfection of an eye or a wing was proof enough of God’s benevolent intention. But Lyell’s Principles of Geology, which Darwin carried like scripture on the Beagle, told a different story. The world, Lyell wrote, was not shaped by miracles but by slow, uniform change—the steady grind of rivers, glaciers, and seas over inconceivable ages. Time itself was creative.

To read Lyell was to realize that if time was democratic, creation must be too. The unconformity between Genesis and geology was not just chronological; it was moral. One offered a quick, purposeful week; the other, an infinite, indifferent age. In the amoral continuum of deep time, design no longer had a throne. What the Bible described as a single act, the earth revealed as a process—a slow and unending becoming.

Darwin began to suspect that nature’s grandeur lay not in its perfection but in its persistence. Each fossil was a fragment of a patient argument: the earth was older, stranger, and more self-sufficient than revelation had allowed. The divine clockmaker had not vanished; he had simply been rendered redundant.


In the years that followed, he learned to think like the rocks he collected. His notebooks filled with sketches of strata, lines layered atop one another like sentences revised over decades. His writing itself became geological—each idea a sediment pressed upon the last. Lyell’s slow geology became Darwin’s slow epistemology: truth as accumulation, not epiphany.

Where religion offered revelation—a sudden, vertical descent of certainty—geology proposed something else: truth that moved horizontally, grinding forward one grain at a time. Uniformitarianism wasn’t merely a scientific principle; it was a metaphysical revolution. It replaced the divine hierarchy of time with a temporal democracy, where every moment mattered equally and no instant was sacred.

In this new order, there were no privileged events, no burning bushes, no first mornings. Time did not proceed toward redemption; it meandered, recursive, indifferent. Creation, like sediment, built itself not by command but by contact. For Darwin, this was the first great heresy: that patience could replace Providence.


Yet the deeper he studied life, the more its imperfections troubled him. The neat geometry of Paley’s watch gave way to the cluttered workshop of living forms. Nature, it seemed, was a bricoleur—a tinkerer, not a designer. He catalogued vestigial organs, rudimentary wings, useless bones: the pelvic remnants of snakes, the tailbone of man. Each was a ghost limb of belief, a leftover from a prior form that refused to disappear. Creation, he realized, did not begin anew with each species; it recycled its own mistakes.

The true cruelty was not malice, but indifference’s refusal of perfection. He grieved not for God, but for the elegance of a universe that could have been coherent. Even the ichneumon wasp—its larvae devouring live caterpillars from within—seemed a grotesque inversion of divine beauty. In his Notebook M, his handwriting small and furious, Darwin confessed: “I cannot persuade myself that a beneficent & omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars.”

It was not blasphemy but bewilderment. The wasp revealed the fatal inefficiency of creation. Life was not moral; it was functional. The divine engineer had been replaced by a blind experimenter. The problem of evil had become the problem of inefficiency.


As his understanding deepened, Darwin made his most radical shift: from the perfection of species to the variation within them. He began to think in populations rather than forms. The transformation was seismic—a break not only from theology but from philosophy itself. Western thought since Plato had been built on the pursuit of the eidos—the ideal Form behind every imperfect copy. But to Darwin, the ideal was a mirage. The truth of life resided in its variations, in the messy cloud of difference that no archetype could contain.

He traded the eternal Platonic eidos for the empirical bell curve of survival. The species was not a fixed sculpture but a statistical swarm. The true finch, he realized, was not the archetype but the average.

When he returned from the Galápagos, he bred pigeons in his garden, tracing the arc of their beaks, the scatter of colors, the subtle inheritance of form. Watching them mate, he saw how selection—artificial or natural—could, over generations, carve novelty from accident. The sculptor was chance; the chisel, time. Variation was the new theology.

And yet, the transition was not triumph but loss. The world he uncovered was magnificent, but it no longer required meaning. He had stripped creation of its author and found in its place an economy of cause. The universe now ran on autopilot.


The heresy of evolution was not that it dethroned God, but that it rendered him unnecessary. Darwin’s law was not atheism but efficiency—a biological Ockham’s Razor. Among competing explanations for life, the simplest survived. The divine had not been banished; it had been shaved away by economy. Evolution was nature’s most elegant reduction: the minimum hypothesis for the maximum variety.

But the intellectual victory exacted a human toll. As his notebooks filled with diagrams, his body began to revolt. He suffered nausea, fainting, insomnia—an illness no doctor could name. His body seemed to echo the upheavals he described: geology turned inward, the slow, agonizing abrasion of certainty. Each tremor, each bout of sickness, was a rehearsal of the earth’s own restlessness.

At Down House, he wrote and rewrote On the Origin of Species in longhand, pacing the gravel path he called the Sandwalk, circling it in thought as in prayer. His wife Emma, devout and gentle, prayed for his soul as she watched him labor. Theirs was an unspoken dialogue between faith and doubt—the hymn and the hypothesis. If he feared her sorrow more than divine wrath, it was because her faith represented what his discovery had unmade: a world that cared.

His 20-year delay in publishing was not cowardice but compassion. He hesitated to unleash a world without a listener. What if humanity, freed from design, found only loneliness?


In the end, he published not a revelation but a ledger of patience. Origin reads less like prophecy than geology—paragraphs stacked like layers, evidence folded upon itself. He wrote with an ethic of time, each sentence a small act of restraint. He never claimed finality. He proposed a process.

To think like Darwin is to accept that knowledge is not possession but erosion: truth wears down certainty as rivers wear stone. His discovery was less about life than about time—the moral discipline of observation. The grandeur lay not in control but in waiting.

He had learned from the earth itself that revelation was overrated. The ground beneath him had already written the story of creation, slowly and without words. All he had done was translate it.


And yet, the modern world has inverted his lesson. Where Darwin embraced time as teacher, we treat it as an obstacle. We have made speed a virtue. Our machines have inherited his method but abandoned his ethic. They learn through iteration—variation, selection, persistence—but without awe, without waiting.

Evolution, Darwin showed, was blind and purposeless, yet it groped toward beings capable of wonder. Today’s algorithms pursue optimization with dazzling precision, bypassing both wonder and meaning entirely. We have automated the process while jettisoning its humility.

If Darwin had lived to see neural networks, he might have recognized their brilliance—but not their wisdom. He would have asked not what they predict, but what they miss: the silence between iterations, the humility of not knowing.

He taught that patience is not passivity but moral rigor—the willingness to endure uncertainty until the truth reveals itself in its own time. His slow empiricism was a kind of secular faith: to doubt, to record, to return. We, his heirs, have learned only to accelerate.

The worms he studied in his final years became his last philosophy. They moved blindly through soil, digesting history, turning waste into fertility. In their patience lay the quiet grandeur he had once sought in heaven. “It may be doubted whether there are many other animals,” he wrote, “which have played so important a part in the history of the world.”

If angels were symbols of transcendence, the worm was its antithesis—endurance without illusion. Between them lay the moral frontier of modernity: humility.

He left us with a final humility—that progress lies not in the answers we claim, but in the patience we bring to the questions that dissolve the self. The sound of those worms, still shifting in the dark soil beneath us, is the earth thinking—slowly, endlessly, without design.

THIS ESSAY WAS WRITTEN AND EDITED UTILIZING AI

THE LAST LIGHT OF ALEXANDRIA

How Hypatia of Alexandria’s murder marked the moment reason fell to zeal—and why her lesson still echoes in an age ruled by algorithms.

By Michael Cummins, Editor, October 5, 2025

In the waning light of Alexandria’s golden age, a woman stood at the threshold of the cosmos. Draped in the robes of a philosopher, Hypatia of Alexandria taught mathematics as if it were music, astronomy as if it were prayer, and philosophy as if it were the architecture of the soul. She wrote no manifestos and led no armies. She taught. She reasoned. And for this—for the audacity of clarity in a world turning toward dogma—she was torn from the world. Her death was not merely a murder; it was a cultural wound, a severing of the classical from the medieval, of inquiry from ideology. The light she guarded—the flickering flame of secular, public reason—was extinguished in the very place conceived to protect it.

To speak of Hypatia is to speak of a city that believed knowledge could civilize the human spirit. Alexandria, founded by Alexander and tended by the Ptolemies, was the ancient world’s neural network, an experiment in global curiosity. Within its Library and Museum—the first great research institute—scholars mapped the heavens, dissected geometry, and debated the soul’s immortality under vaulted ceilings that smelled of parchment and sea salt. It was in this monumental, decaying marble world that Hypatia was born, around 370 CE, to Theon, the Library’s last known scholar. Her father taught her what Euclid and Eratosthenes had discovered, but she learned what they had meant: that geometry was not sterile abstraction but a form of devotion, a way of approaching perfection through reason.

She inherited the lineage of the ancients—the serene logic of Euclid, the restless measurement of Eratosthenes, the astronomical audacity of Ptolemy—and fused them into something both rigorous and spiritual. In late antiquity, knowledge still shimmered with moral purpose. Neoplatonism, the philosophy she championed, held that all things emanated from a single divine source, and that the human mind could ascend toward it through contemplation and mathematics. Numbers were not quantities but metaphors of being; to trace a circle was to imitate eternity. For Hypatia, geometry was not an escape from the world but its transfiguration—each theorem a small proof of cosmic coherence. It was not rebellion but refinement, a path to God that required no priest—and therefore could not be permitted.

Her genius lay in making the abstract visible. She wrote commentaries on Diophantus’s Arithmetica, clarified Ptolemy’s Almagest, and edited Apollonius’s Conics, ensuring future astronomers could still plot the curves of planets and light. Yet her intellect was not confined to parchment. She improved the astrolabe, designed hydroscopes to measure fluid density, and demonstrated that science was not the enemy of spirituality but its instrument. In Hypatia’s hands, philosophy became a navigation system—an attempt to chart truth in a universe governed by reason.

Imagine her in the lecture hall: morning light slanting through the colonnade, dust motes rising like miniature stars. A semicircle of students—Greeks, Egyptians, Romans, Jews, Christians—sit cross-legged at her feet. “You see,” she tells one, “a circle is not only a form—it is an argument for eternity.” Another asks, “And where is the soul in all this?” She pauses, chalk in hand. “In the harmony,” she says, smiling. The air hums with the audacity of free exchange. In an age dividing along creeds, her classroom was a sanctuary of synthesis.

At night, when the city’s noise dimmed and the harbor lanterns shimmered against the water, she would walk the colonnade alone. The scrolls in her study carried the scent of dust and oil. She read by lamplight until her fingers grew black with soot. To her students, she was certainty incarnate; alone, she seemed to understand that clarity provokes envy—that serenity itself is a kind of heresy. Even the stars she charted seemed to dim slightly under the weight of her foresight.

Her authority rested not on birth or ordination but on rational mastery—an unsettling legitimacy that bypassed both patriarchs and priests. She was an unmarried woman commanding reverence in a public space. Her followers were loyal not to a doctrine but to the discipline of thought itself. That was her heresy.

By the early fifth century, the harmony she embodied had begun to collapse. Alexandria had become a city of sharpened edges: pagan temples shuttered, Jewish enclaves under siege, imperial statues toppled and replaced by crosses. The Roman Empire was disintegrating; in its vacuum rose new centers of power, most formidable among them the Church. Bishop Cyril, brilliant and autocratic, sought to consolidate both spiritual and civic control. The imperial prefect Orestes—Hypatia’s friend and intellectual peer—defended the older ideal of the secular city. Between them stood the philosopher, calm and unarmed, the last civil defense against clerical supremacy.

The city had become a mirror of the empire’s exhaustion. Pagan artisans carved crosses beside the fading faces of their old gods; traders whispered prices under the sound of sermons. In the streets, theology replaced law. Orestes issued decrees that no one obeyed; Cyril’s sermons moved armies. The parabalani patrolled the harbor, their tunics stained from tending the sick and, at times, from beating the unbeliever. What began as civic unrest curdled into ritual violence—not just a fight for power, but for the right to define what counted as truth.

The conflict between Hypatia and Cyril was more than political. It was metaphysical. She represented individual, discovered truth; he, collective, inherited truth. Her worldview required no mediator between human reason and the divine. His authority depended on the indispensability of mediation. To Cyril, Neoplatonism’s notion that one could approach God through geometry and contemplation was blasphemy—it made the soul its own priest. The Church could not tolerate such independence.

One March afternoon, the mob found her carriage. They dragged her through the streets to a church—irony as architecture. Inside, beneath mosaics of saints, they stripped her, flayed her with oyster shells, and burned what remained. Socrates Scholasticus, a Christian historian, wrote simply: “Such a deed brought great disgrace upon Cyril and the Church of Alexandria.” It was not a killing; it was an exorcism. By tearing her apart, they sought to purge the city of its final pagan ghost—the living remnant of Athens’ rational soul.

Orestes, her ally, could not avenge her. The Empire, hollowed by decay, turned away. Cyril triumphed, later sanctified as a saint. The rule of law yielded to the rule of zeal. And so, with Hypatia’s death, an epoch ended. The library’s embers cooled, the lamps of the Museum darkened, and Europe entered its long medieval night.

For nearly a thousand years she survived only as rumor. Then the Enlightenment rediscovered her. Gibbon saw in her death the moment “barbarism and religion triumphed.” Voltaire invoked her as evidence that superstition kills what it cannot comprehend. Hypatia’s revival became part of a broader reckoning—a rebellion against inherited authority. To Enlightenment thinkers, she was the prototype of their own project: the reclamation of reason from revelation.

To later feminists, she became something more. Her murder revealed a longer pattern—the way intellectual women are punished not for ignorance but for illumination. Mary Wollstonecraft read her story as an ancestral warning; Simone de Beauvoir as a prelude to every modern silencing of the female intellect. To them, Hypatia was not just the first martyr of reason but its first woman martyr—the proof that wisdom in a woman’s voice has always been political.

Even now, her image flickers at the edge of cultural memory: the philosopher as secular saint, the teacher as threat. She has become the emblem of every rational mind undone by hysteria. Yet her deeper legacy lies not only in her martyrdom but in her method—the belief that the world is comprehensible, and that comprehension is a moral act.

And what, sixteen centuries later, does her story demand of us? We, too, live in an Alexandria of our own making, a world of infinite information and vanishing wisdom. Our libraries are digital, our mobs algorithmic. The algorithm has become the modern parabalani, shredding context and nuance for the sake of engagement. Knowledge no longer burns by fire; it corrodes by speed. We scroll instead of study, react instead of reflect. What once was a civic agora has become a coliseum of certitude.

Somewhere in a dim university office, a woman corrects her students’ proofs by the light of her laptop. She teaches them to think slowly in a world that rewards speed, to doubt the easy answer, to hold silence as rigor. Outside, the din of the feed hums like an approaching crowd. She doesn’t know it, but she’s teaching Hypatia’s lesson: that the mind’s true courage lies not in certainty but in patience.

Her challenge endures. The purpose of philosophy is not to win the argument but to chart the truth, even when the world insists on remaining lost. She reminds us that every age must relearn how to think freely, and that freedom of thought, once lost, returns only through vigilance.

To honor Hypatia is not merely to remember her death but to practice her discipline: to teach, to reason, to listen. The world will always be noisy, half-mad with conviction. Somewhere, in the imagined quiet of that vanished library, a woman still draws circles on marble, tracing the harmonies of a cosmos we have not yet earned. If she could look up now, she would find the same constellations unchanged—Orion still hunting, Cassiopeia still boasting, the curve of the moon unbroken. The geometry she once traced on marble persists in the heavens, indifferent to history’s convulsions. That, perhaps, was her final comfort: that reason, like starlight, travels slowly but never dies. It only waits for another mind, somewhere in the future, to lift its face and see.

THIS ESSAY WAS WRITTEN AND EDITED UTILIZING AI

HEALTHY AGING: WHY LEAN MUSCLE MASS IS ESSENTIAL

By Michael Cummins, Editor

When we envision the journey of aging, we often focus on the more visible signs—the lines on our faces, the graying hair, or the occasional ache in our joints. But the most profound changes occur beneath the surface, particularly within our muscular system. The gradual loss of muscle mass, a condition known as sarcopenia, is often accepted as an inevitable part of getting older. Yet, this decline is far from a cosmetic concern. It represents a fundamental shift in our body’s operating system, compromising our resilience and making us more vulnerable to chronic disease.

Modern science has revolutionized our understanding of skeletal muscle. It is not merely a tool for movement but a dynamic, multifaceted endocrine organ—a bustling chemical factory that profoundly influences every aspect of our health. By actively engaging and maintaining this “factory,” we can effectively fight back against the aging process at a cellular and systemic level. This essay will explore the critical importance of preserving lean muscle mass, detailing its key functions in regulating metabolism, combating chronic inflammation, bolstering our immune system, and acting as a protective shield for the entire body. Ultimately, it will argue that building and maintaining muscle should be a foundational and non-negotiable pillar of any strategy for promoting a long, healthy, and vibrant life.

The Unseen Architects: A Deeper Look at Mitochondria

To truly appreciate the power of muscle, we must first look inside the cell at the microscopic architects that make it all possible: the mitochondria. While famously known as the “powerhouses” of the cell, their story is far more fascinating. As scientist Lena Pernas from the Max Planck Institute for Biology of Ageing explains in her TEDxPadova talk, their ancestors were ancient bacteria that, over 1.5 billion years ago, forged a symbiotic relationship with our early eukaryotic ancestors by finding their way into a larger cell and staying. This remarkable evolutionary event is why mitochondria still retain some bacterial traits, including their own unique circular DNA, known as mtDNA. Interestingly, all of our mitochondrial DNA is passed down exclusively from our mothers.

“To truly appreciate the power of muscle, we must first look inside the cell at the microscopic architects that make it all possible: the mitochondria.”

These tiny organelles are responsible for converting the oxygen we breathe and the nutrients we consume into adenosine triphosphate (ATP), the chemical energy that powers our every thought, movement, and biological process. Mitochondria are not scattered randomly in our bodies; they are strategically placed in the greatest numbers and size within the tissues that have the highest energy demands. This makes our lean muscle tissue a prime location for these cellular power plants. A healthy, active muscle is packed with a dense network of mitochondria, ready to produce the vast amounts of energy needed for physical activity. The strength and efficiency of this mitochondrial network are directly linked to the health and vitality of your muscles, making the connection between muscle mass and healthy aging all the more profound.

The Metabolic Engine Room: Regulating Your Body’s Energy

Skeletal muscle is the single largest organ in the human body, constituting nearly 50% of total body weight in a lean individual. Its sheer size and constant activity make it a metabolic powerhouse. One of its most vital roles is as the body’s primary glucose regulator. After a meal, muscle tissue acts as a massive storage container, efficiently taking up glucose from the bloodstream in response to insulin’s signal. This action is crucial for keeping blood sugar levels balanced and preventing the dangerous spikes and crashes associated with metabolic dysfunction.

“By maintaining a robust amount of muscle mass, you effectively protect this system, keeping your metabolic ‘engine room’ running smoothly.”

However, as we age and lose muscle mass, this storage container shrinks. The remaining cells have to work harder to manage blood sugar, which often leads to a condition called insulin resistance. In this state, your body’s cells become less responsive to insulin’s message, causing glucose to accumulate in the bloodstream—a key precursor to Type 2 diabetes. Insulin resistance triggers a dangerous cascade of events. The excess glucose in the blood can bind to proteins, forming pro-inflammatory molecules known as Advanced Glycation End-products (AGEs).

Additionally, impaired insulin action leads to a rise in circulating free fatty acids, which directly activate inflammatory pathways within cells. This vicious cycle, where metabolic dysfunction drives inflammation and vice versa, is a cornerstone of numerous age-related diseases. By maintaining a robust amount of muscle mass, you effectively protect this system, keeping your metabolic “engine room” running smoothly and providing a high-leverage strategy for preventing chronic conditions.

Fighting Inflammation: Your Body’s Internal Anti-Inflammatory Factory

Chronic, low-grade systemic inflammation is a major driver of age-related decline. Known as inflammaging, this slow-burning inflammatory state contributes to everything from heart disease and arthritis to neurodegenerative disorders. The genius of skeletal muscle lies in its ability to actively combat this process.

When muscles contract during physical activity, they release a complex cocktail of signaling molecules called myokines. These myokines act as powerful, natural anti-inflammatory agents. They are the chemical messengers of your muscle’s “pharmacy,” traveling throughout the body to modulate inflammatory and immune responses. Without enough muscle and physical activity, you lose this natural defense, allowing the chronic inflammatory “fire” to burn hotter.

One of the most well-studied myokines, Interleukin-6 (IL-6), beautifully illustrates this concept. While often associated with inflammation in its chronic state, when it is secreted acutely by working muscles, it acts as a powerful anti-inflammatory signal. Muscle-derived IL-6 can inhibit the production of other pro-inflammatory cytokines, creating a more balanced and healthy systemic environment.

Brown Fat: Your Body’s Calorie-Burning Furnace

A particularly exciting and potent anti-inflammatory function of myokines is their ability to influence your body’s fat tissue. Not all fat is created equal. While white fat stores energy, brown fat is a specialized tissue packed with mitochondria that burns calories to produce heat. People with higher levels of brown fat are often at a lower risk for conditions like type 2 diabetes and heart disease, even if they are overweight.

“By keeping your muscles active, you are sending out potent signals that actively work to counteract the systemic inflammation and metabolic dysfunction that drives the aging process.”

Skeletal muscle plays a vital, direct role in the production and activation of this beneficial brown fat. Exercise-induced myokines, notably Irisin and Fibroblast Growth Factor 21 (FGF21), are key players in a process called “browning.” This is a remarkable biological feat where white fat cells, particularly in certain areas of the body, are signaled to transform into brown-like fat cells (often called “beige” adipocytes).

These new beige fat cells become metabolic furnaces, increasing your overall energy expenditure and helping to improve blood sugar control and cholesterol levels. By keeping your muscles active, you are not just building strength; you are sending out these potent signals that actively work to counteract the systemic inflammation and metabolic dysfunction that drives the aging process.

The Vicious Cycle: How Inactivity and Obesity Degrade Muscle

While lean muscle can act as a powerful protective agent, a sedentary lifestyle and obesity create a detrimental environment that actively degrades both mitochondrial and muscle health.

“In essence, inactivity and obesity create a vicious cycle…a dangerous cycle that accelerates the decline of overall health.”

This is a complex interplay of chronic inflammation, insulin resistance, and altered metabolic processes that forms a dangerous cycle.

Impact on Mitochondria: Inactivity and obesity are a direct assault on the cell’s powerhouses.

They impair their function by:

Reduced Mitochondrial Biogenesis: Without the stimulus of physical activity, the body suppresses the process of creating new mitochondria. This leads to a decrease in the overall number and density of these crucial power plants in your muscle cells.

Impaired Function: The existing mitochondria become less efficient at producing ATP, reducing your muscles’ capacity to generate energy.

Increased Oxidative Stress: A sedentary lifestyle and excess metabolic load lead to a significant increase in reactive oxygen species (ROS). This oxidative stress damages mitochondria and reduces your body’s natural antioxidant defenses, leading to an accumulation of cellular damage.

Compromised Quality Control: Your body has a clean-up process called mitophagy that removes damaged mitochondria. Inactivity and obesity make this process sluggish, allowing unhealthy mitochondria to build up and further compromise energy production.

Impact on Lean Muscle:
Beyond the cellular level, inactivity and obesity degrade muscle tissue through a state of chronic low-grade inflammation. This silent inflammation is a hallmark of obesity and is characterized by the infiltration of immune cells and the release of harmful molecules.

Pro-inflammatory Molecules: Immune cells and fat cells in obese individuals secrete inflammatory molecules like TNF-α and MCP-1. These molecules cause inflammation within muscle cells and interfere with their metabolism, leading to insulin resistance.

Insulin Resistance and Protein Degradation: The insulin resistance that is common with obesity directly accelerates muscle breakdown. It does this by suppressing a crucial signaling pathway responsible for building muscle protein, while simultaneously activating pathways that break down protein.

Ectopic Lipid Deposition: This is the accumulation of fat within the muscle itself, a condition known as myosteatosis. This fatty infiltration is directly linked to decreased muscle strength and a reduced ability for muscle regeneration.

In essence, inactivity and obesity create a vicious cycle. They promote chronic inflammation and insulin resistance, which in turn damages mitochondria and leads to the breakdown of muscle protein. This loss of muscle then further worsens metabolic function, fueling the cycle and accelerating the decline of overall health.

The Immune System’s Secret Fuel Tank and Guardian

Beyond their metabolic and anti-inflammatory functions, muscles are a critical support system for your immune health. The human body is a constant battlefield, and your immune cells are your first line of defense. But these cells are metabolically demanding, requiring a constant supply of energy and building blocks to function effectively. This is where lean muscle mass becomes an unsung hero.

“Think of your muscles as a vast ‘fuel tank’ for your immune system.”

Skeletal muscle is your body’s largest reservoir of protein and amino acids. This vast store is not just for building brawn; it actively provides essential amino acids for vital functions, including the rapid proliferation and activation of immune cells. A prime example is glutamine, an amino acid that is abundantly produced by skeletal muscle. Glutamine is the primary energy source for rapidly dividing immune cells like lymphocytes and monocytes. Think of your muscles as a vast “fuel tank” for your immune system.

If this tank is full, your immune cells have the fuel they need to mount a robust defense against pathogens. However, if you lose muscle mass or your body is under severe stress (such as during a serious illness), this glutamine tank can run low. When this happens, immune cells are deprived of their primary fuel source, which can compromise their function, proliferative capacity, and ability to effectively fight off infections. This direct metabolic link explains why individuals with sarcopenia or significant muscle wasting are often more susceptible to infections and have poorer outcomes when they get sick.

Beyond Strength: A Whole-Body Protective Shield

The benefits of maintaining muscle mass extend far and wide, touching virtually every system in the body. A higher lean body mass is a powerful indicator of overall health and resilience.

Bone Health: The act of resistance training creates tension on your muscles, which in turn puts a positive, mechanical stress on your bones. This stimulus signals to the bones to get stronger and denser, making resistance training one of the most effective defenses against osteoporosis.

Heart Health: A higher ratio of muscle to fat mass is associated with a healthier lipid profile, lower blood pressure, and a reduced risk of heart disease. The myokines released during exercise also play a role in protecting the cardiovascular system.

Brain Power: Research shows a fascinating link between muscle and brain health. Myokines released during exercise can have neuroprotective effects, enhancing cognitive function and potentially reducing the risk of neurodegenerative diseases. They can influence the production of brain-derived neurotrophic factor (BDNF), a molecule essential for neuronal growth and survival.

“A higher lean body mass is a powerful indicator of overall health and resilience.”

The sheer volume and metabolic activity of muscle mean that even subtle changes in its health can have widespread systemic effects, offering a powerful, protective shield for the entire body.

The Action Plan: What You Can Do

The good news is that sarcopenia is not an irreversible fate. You can actively fight muscle loss at any age, and the most effective strategy is a powerful combination of resistance training and a strategic approach to nutrition.

Resistance Training: This is the most crucial signal you can give your body to keep and build muscle. This doesn’t mean you have to become a bodybuilder; it means making your muscles work against a force. This can include:

Lifting weights: Using dumbbells, barbells, or machines.

Resistance bands: An excellent, low-impact option.

Bodyweight exercises: Squats, lunges, push-ups, and planks are highly effective.
The key is progressive overload, which means gradually increasing the intensity over time to challenge your muscles and force them to adapt and grow.

Eating Enough Protein: Protein is the essential building block of muscle tissue. As we get older, our bodies become less efficient at using protein, a phenomenon called “anabolic resistance.” This means older adults need a higher intake of protein per meal than younger individuals to achieve the same muscle-building response. Aim for a consistent intake of high-quality protein with every meal, especially around your resistance training sessions, to maximize muscle protein synthesis and counteract sarcopenia.

Crucially, the research shows that combining these two strategies—exercise and nutrition—creates a synergistic effect. The benefits are amplified when you support your muscles with both the mechanical stimulus to grow and the nutritional building blocks they need.

Conclusion

The journey of healthy aging is not about avoiding the passage of time but about building a body that can withstand its effects. At the heart of this process lies our skeletal muscle. By moving beyond the old paradigm of muscle as a simple locomotive tool, we can appreciate its central and multifaceted role as a metabolic regulator, an anti-inflammatory agent, and a vital supporter of our immune system. The progressive loss of this powerful organ is a primary driver of age-related decline and chronic disease.

“The secret to a long, healthy life isn’t hidden in a mythical fountain of youth—it’s waiting for you to build it, one muscle fiber at a time.”

However, this new understanding also provides a clear and empowering path forward. By prioritizing regular resistance training and a thoughtful approach to nutrition, we can actively build and maintain our lean muscle mass. This is not just an investment in a stronger body; it is an investment in a more resilient metabolism, a calmer inflammatory system, and a more robust immune defense. The secret to a long, healthy life isn’t hidden in a mythical fountain of youth—it’s waiting for you to build it, one muscle fiber at a time.

THIS ESSAY WAS WRITTEN AND EDITED UTILIZING AI

Science Essays: ‘The Stagnation Of Physics’

AEON MAGAZINE (April 1, 2025) by Adrien De Sutter:

Browse a shelf of popular science books in physics and you’ll often find a similar theme. Whether offering insights into The Hidden Reality (2011), Something Deeply Hidden (2019) or Our Mathematical Universe (2014), these books hint at an underlying, secret world waiting to be unravelled by physicists – a domain beyond our sensory perception that remains their special purview.

‘It’s akin to knowing everything about sand dunes … but not knowing what a grain of sand is made of’

Over its history, physics has delivered elegant and accurate descriptions of the physical Universe. Today, however, the reality physicists work to uncover appears increasingly removed from the one they inhabit. Despite its experimental successes, physics has repeatedly failed to live up to the expectation of delivering a deeper, ‘final’ physics – a reality to unify all others. As such, physicists appear forced to entertain increasingly speculative propositions.

Yet, with no obvious avenues to verify such speculations, physicists are left with little option but to repeat similar approaches and experiments – only bigger and at greater cost – in the hope that something new may be found. Seemingly beset with a sense of anxiety that nothing new will be found or that future experiments will reveal only further ignorance, the field of fundamental physics is incentivized to pursue ever more fanciful ideas.

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It may even require that we abandon doing physics altogether, in the attainment of an expanded reality that not only accepts but encourages the possibility of difference and more. Or, as the speculative fiction writer Ursula Le Guin once put it, what we require are ‘the realists of a larger reality’.

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Adrien De Sutter completed his PhD in sociology at Goldsmiths, University of London, and is a visiting fellow at the Max Planck Institute for the History of Science in Germany. An interdisciplinary researcher specialising in science and technology studies and the history and philosophy of science, he focuses on the philosophical, sociological and political implications of fundamental physics research.

Science: The Mysterious Flow Of Fluid In The Brain

QUANTA MAGAZINE (March 26, 2025) by Veronique Greenwood:

Incased in the skull, perched atop the spine, the brain has a carefully managed existence. It receives only certain nutrients, filtered through the blood-brain barrier; an elaborate system of protective membranes surrounds it. That privileged space contains a mystery. For more than a century, scientists have wondered: If it’s so hard for anything to get into the brain, how does waste get out?

What’s more, during NREM sleep norepinephrine levels change rhythmically. This neurotransmitter could help tie together their hypotheses — the physical movement of CSF through brain tissues and the “brainwashing” occurring during sleep.

The brain has one of the highest metabolisms of any organ in the body, and that process must yield by-products that need to be removed. In the rest of the body, blood vessels are shadowed by a system of lymphatic vessels. Molecules that have served their purpose in the blood move into these fluid-filled tubes and are swept away to the lymph nodes for processing. But blood vessels in the brain have no such outlet. Several hundred kilometers of them, all told, seem to thread their way through this dense, busily working tissue without a matching waste system.

However, the brain’s blood vessels are surrounded by open, fluid-filled spaces. In recent decades, the cerebrospinal fluid, or CSF, in those spaces has drawn a great deal of interest. “Maybe the CSF can be a highway, in a way, for the flow or exchange of different things within the brain,” said Steven Proulx, who studies the CSF system at the University of Bern.

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Veronique Greenwood is a science writer and essayist. Her work has appeared in The New York Times Magazine, Smithsonian, Discover, Aeon and other publications.

Mathematics Essay: ‘Beyond Causality’

AEON (February 14, 2025): In 1959, the English writer and physicist C P Snow delivered the esteemed Rede Lecture at the University of Cambridge. Regaled with champagne and Marmite sandwiches, the audience had no idea that they were about to be read the riot act. Snow diagnosed a rift of mutual ignorance in the intellectual world of the West. On the one hand were the ‘literary intellectuals’ (of the humanities) and on the other the (natural) ‘scientists’: the much-discussed ‘two cultures’.

Mind and world are no separate spheres that must first be connected. Rather, both depend on each other

Snow substantiated his diagnosis with anecdotes of respected literary intellectuals who complained about the illiteracy of the scientists but who themselves had never heard of such a fundamental statement as the second law of thermodynamics. And he told of brilliant scientific minds who might know a lot about the second law but were barely up to the task of reading Charles Dickens, let alone an ‘esoteric, tangled and dubiously rewarding writer … like Rainer Maria Rilke.’

Mathematics mediates a conciliatory view that avoids the mistake of the naive realist and the naive idealist…

Ludwig Wittgenstein once said: ‘I want to show the colourfulness of mathematics.’ In that spirit, I placed mathematics at the centre of my project because, in my view, mathematics searches along more of these many paths than any other intellectual discipline. It is connected on a deep level both with the natural sciences and the humanities. It bridges the gulf between them, and it does so by putting certain metaphysical and epistemological dogmas into question, as will become clear in the following.

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Gordon Gillespie is an actuary, quantitative risk manager and data scientist. He has a doctorate in philosophy and is the author of the German-language book The Oracle of Numbers: A Short Philosophy of Mathematics (2023). He lives in Rüdesheim, Germany.

‘Can Understanding The Brain Make Us Better People?’ (Book Review)

THE NEW YORK TIMES BOOK REVIEW (February 14, 2025)

CEREBRAL ENTANGLEMENTS: How the Brain Shapes Our Public and Private Lives, by Allan J. Hamilton

A profound and profoundly important book that, using the most up-to-date revolutionary discoveries in neuroscience, shows us how to understand the brain; how it allows us to think, feel, experience and perceive, written by an acclaimed Harvard-trained neurosurgeon.


The human brain! It’s amazing! A master conductor of our emotional symphonies, a supercomputer of intelligence, a treasure inside the “temple” of the skull, where it gloriously shimmers “vivid, vital, jewel-like.” I mean, is it any wonder we’re such a special species?

Sorry: I had to get that out of my system. Books built on hyperbole seem to bring out the worst in me. And “Cerebral Entanglements,” a new book by the surgeon and medical consultant Allan J. Hamilton, is so breathlessly excited about our brains and how they work, about the dazzle of new insights and technologies, that occasionally this reader felt compelled to take a break and fan herself.

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Deborah Blum is the director of the Knight Science Journalism Program at M.I.T. and the author of “The Poison Squad: One Chemist’s Single-Minded Quest for Food Safety at the Turn of the Twentieth Century.”