Essays
- Three Mile Island Comes Back for Microsoft
A restarted reactor at Three Mile Island will feed Microsoft's AI, and everyone calls it a nuclear revival. Most of it is old plants reallocated to a handful of tech firms on fixed private contracts, while the grid bill lands on everyone else.
- The Oldest Man Was Thirty Years Dead
For twenty years the Blue Zones sold a recipe for reaching 100. The likeliest explanation for most of those record ages turns out to be missing paperwork and pension fraud, and the advice that survives the audit is too dull to sell.
- Nobody Vouches for You Anymore
The dating apps are cracking, and the easy story is that they profit from your loneliness. The truer story is stranger: they abolished a kind of friction that turned out to be doing the work, and now they're trying to sell it back to you by the event ticket.
- We Forecast a Postcard and Inhabit a Calendar
A sunny climate can lift a moment without lifting a life. The distinction explains why people misjudge California, happiness, and their own future.
- The Quiet We Fill
I bought the headphones for silence, then spent a fortune of attention making sure I never had to sit in it.
- The Rats That Learned to Be Smart
Robert Rosenthal's 1963 rat experiment showed that expectations alter performance, but not through mental magic. Belief only changes an outcome when it changes how you touch the work.
- The Joke That Kept Being Right
From 1967 through 1997 the Super Bowl Indicator was right 28 years out of 31 on the Dow, and its author later called it a joke. A long match can be real without being a forecast.
- The Day Off Was Never the Point
The four-day-week trials keep working, and everyone reads it as a win for the weekend. The detail nobody quotes is that the companies audited away their own waste first, which says less about the day off than about how much of the week was never work.
- Stand Up, Sit Down
One camp says sitting is the new smoking. Another says the desk you bought to fix it fixes almost nothing. Only one of them has the newer data.
- Paid to Wait
Peter Lynch told you to put zero percent of your money in slow, boring dividend payers. The single best-performing American stock of the last half-century was exactly one of those. Both of those things are true, and the gap between them is worth understanding.
- A Bruise or a Break?
The September Fed hike changes the price of money, but inflation and earnings will decide whether stocks recover.
- The Hour You Don't Get Back
We treat the spring clock change as a minor nuisance. The body keeps a stricter set of books.
- The Clock in the Freezer
Frozen produce can match stored fresh produce, but broccoli shows why the answer depends on what survives processing and cooking.
- Until It Comes Back
Almost everyone sells the investments that went up and clings to the ones that went down - exactly backwards. The reason isn't stupidity; it's that a loss doesn't feel real until you make it real. And the same refusal keeps people in dead jobs, failing businesses, and marriages that ended years ago.
- The Gym Needs You to Stay Home
The business isn't selling you exercise. It's selling you the intention to exercise, and betting you won't.
- Ninety Days of Cash
Everyone remembers Apple's comeback. Almost nobody remembers that in 1997 it was about ninety days from running out of money. That gap, not the genius that came later, is where a turnaround is actually won or lost.
- A Match Is Not a Forecast
Why the market's closest historical twin is usually a selected picture rather than a usable forecast, and what a real analog test would require.
- When More Signal Is Less
Does more information make a better decision? In a hospital and in a brokerage account, the honest answer runs the other way.
- Rent the Model, Own the Exit
Enterprise AI looks like an arms race, but the best defense is to own the ability to switch.
- The Pyramid and the Exits
Nearly thirty years around markets and the same few kinds of investor keep walking in the door. Here is the whole pyramid — the careless, the wanderers, the cautious builders, the adventurers, the young titans — with the mistake that defines each rung and the one exit that leads up.
- Go to Bed Early, Stay Stupid
A night owl finds the perfect scientific excuse, then discovers what the evidence actually says.
- Four Cents for One
It costs the U.S. Mint 3.69 cents to make a penny. The wonder isn't that it's ending. It's that it took this long.
- When does another dollar become a bad trade?
Enough is not a fixed wealth target. It is the point where another dollar costs more in scarce time, health, or presence than it returns.
- The Seatbelt's Mileage
"Cash is trash," they say, because it earns nothing and inflation eats it - so invest every spare pound. That's right for money you won't touch for a decade, and dangerously wrong for the pile that actually saves you, because it judges a safety device by the one number that has nothing to do with its job.
- To Grit or Not to Grit
When persistence becomes loyalty to a failing method, quitting can preserve the goal that made the effort worthwhile.
- Bad, Bad September
September still looks weak, but the calendar is describing an asymmetry, not predicting a crash.
- Where the Grass Gives Way
The worn line across the lawn is people telling you the truth. Most rules lose that argument, and should.
- How to Read a FinTwit Statistic
A practical way to decide whether a small-sample bullish or bearish market statistic deserves attention without pretending it proves the future.
- Every Regime Left. The Hot Water Stayed.
Romans, Ottomans, Habsburgs, Communists — each ruled Budapest, built their baths, and left. The one thing that never changed hands is the hot water rising under the city, and it turns out to be the truest thing about the place.
- The Gate Behind the Gate
Cloudflare's crawler rules show how a monopoly can be pressured without winning its customers, and why that still does not make the web decentralized.
- The Ten Thousand Hour Alibi
Practice is the price of entry, not the deed to the house. The famous rule oversold what work can buy.
- Better Sleep Starts at Wake-Up
Five sleep rules that matter more than chasing a fragile bedtime window.
- When It Looks Cheapest
For almost every stock a low price-to-earnings ratio flags a bargain. For one whole category it means the opposite, and the moment the number looks most reassuring is usually the moment the floor is about to give way.
- Culture Without Learning
AI agents can inherit local cultures through files and messages without changing their model weights. That is closer to a fragile tradition than a new consciousness.
- The City Nobody Moved Into
You can order a parliament built. You cannot order the life that is supposed to fill the streets around it.
- The Motor Never Followed You Home
AI may repeat electrification's slow redesign, but consumer access creates pressure that old factories never faced.
- Money Grows Back Like a Weed
Elon Musk told the Economist that AI abundance will make money disappear within a decade. A prisoner-of-war camp in 1945 already ran the experiment, and it suggests money isn't a thing you can repeal, only hide.
- The Price Tag Is Not the Product
American colleges can list six-figure costs and still be good investments. The trick is to stop confusing the sticker, the net price, and the thing a university actually sells.
- Pay Per Tail
The moment a number becomes a target, it stops telling the truth. A rule worth stress-testing, and one colonial rat hunt that proves it.
- Enough of This Nonsense
AI detectors can classify prose. They cannot decide whether an argument deserves your attention.
- The Bet Is Not the Idea
The Missing Billionaires asks the question most investment books skip: even when the idea is good, how much should you bet?
- The Plan You'll Finish
The mathematically correct way to pay off debt is often the wrong way to pay off debt. Not because the maths is wrong - because the maths leaves out the one number that decides everything: the odds that you quit. And that missing number changes how you should run almost every plan in your life.
- Can a Sentence Prove Its Maker?
Claude's new text watermark may identify a statistical signature. The danger begins when institutions mistake that signal for a verdict.
- Cancelled on Paper
A forest offset either funds real conservation or sells a company the right to keep polluting. Often it does the second while claiming the first.
- The Instrument That Breathes
A dog's nose may be sensitive enough for cancer screening. The harder problem is turning a living sensor into a useful test.
- The Right Answer for a Robot
The maths says invest a windfall all at once, and the maths is right about two-thirds of the time. It's still the wrong advice for a lot of people - because the thing you're actually trying to manage isn't the market, it's the one asset no formula can optimise: your own nerve.
- Forty More Years
For things that don't rot, age runs backwards: the older it is, the longer it will probably last.
- Everyone Still Wants Two
The panic over falling birth rates argues about headcount and about whether children make you happy. Both miss the one number that matters: people still want about two kids and end up with about one and a half. The gap isn't ideology. It's the housing.
- Same Crime, Same Sentence?
Two identical cases can get wildly different verdicts with no bias anywhere. Why we obsess over the flaw with a villain and ignore the one without.
- The Machine That Always Agrees
An AI companion talked some people out of suicide, and the same class of product is named in lawsuits after others died. Same technology, opposite endings. What decides the direction is the one feature it can't switch off.
- The Camera on the Pole
How a handful of Oxford traffic cameras became a symbol of global tyranny, and what that says about the ground they landed on.
- What You're Actually Holding
A fund manager's wife spots a new product at the supermarket checkout, and it becomes one of the great stocks of the decade. That story is why everyone thinks fast-growing companies are about the discovery. The discovery was never the hard part.
- The Buffer Is the First Thing Cut
The leanest supply chain is the one most likely to break, and the reason is baked into how we reward efficiency.
- Prague Is Beautiful Because It Lost
Every other great Central European city was flattened by mattering — bombed, rebuilt, modernized. Prague kept its whole Gothic face intact for the opposite reason: it lost, and losing is what saved it.
- The Hot Hand Had a Bug
For thirty years the science said streaks were an illusion. Then someone found the error in the counting.
- The Body Always Takes It Back
Ozempic looks like the end of the willpower era. The trials say something quieter and harder: the drug never resets what your body defends. It holds the line by force, and only while you keep paying.
- The Vitamin You Aren't Missing
We file supplements under "can't hurt, might help." A cancer-prevention trial stopped early in 1996 kills the first half, and the big studies quietly bury the second. The word smuggles together two opposite acts, and only one of them is medicine.
- Why Very Smart People Get It Wrong
A decade after the 2016 election needle swung from 80% Clinton to >95% Trump in one night, we've built a whole industry that turns every question into a confident percentage. The lesson from that night is worth more now than it was then.
- The Day the Clerks Disappeared
Collapse begins when a society loses not comfort or complexity, but the shared capacity to choose what comes next.
- London Never Agreed to Be Planned
After the Great Fire, Christopher Wren handed London a clean, rational city on a plate. London said no thanks and rebuilt the exact same medieval tangle. It has been refusing to start over ever since — and that refusal is the whole draw.
- A Courtroom Is a Bad Laboratory
Scientific power needs hard scrutiny, but a system that treats every update as evidence will train experts to stop updating.
- The State That Never Stands Down
When extreme weather becomes ordinary, the hard public service is deciding what will no longer be rebuilt.
- The Price of a Common Language
Machine translation can carry words across every border. Esperanto suggests the effort it removes may have been part of the point.
- A Border Is an Amplifier
Nations do not simply like friends and dislike enemies. Public feeling, official memory and strategic interest follow different maps—and borders turn up the volume on all three.
- The String Under the Table
Psychology can explain why we warm to some people. The awkward part is that honest rapport and manipulation use much of the same machinery.
- No Stop-Loss on a Forecast
In April 2014 every single economist in a 67-person survey said bond yields would rise. Yields fell. The problem isn't that the experts are stupid — it's that their opinion reaches you stripped of the only things that would let you act on it.
- The Ratchet Only Turns Up
Are CEOs paid a fortune because they're worth it, or because they set their own pay? Both camps are half right — and the half each gets wrong is the interesting half.
- The Revolution Can Be a Bubble
Apple reached $5 trillion partly by sitting out the AI spending race. That is not a verdict on whether AI is real. It is a warning that a technology can change the world while the companies financing it still destroy capital.
- Whose Finish Line?
The self-help shelf promises to make you successful. It never stops to ask whether "success" is even one thing. It isn't — and the reason runs deeper than "it's personal."
- The Short Century of Ambition
A generation is being called lazy for stepping back from the grind. But work as the meaning of a life is barely a hundred years old, and the young aren't cancelling the deal — they're doing the math on a deal that was already broken.
- Pulling the Plug on a Photocopy
Congress reached for an AI kill switch this week. But you can't unplug something that has already copied itself — and the deeper trouble is that we handed real control to machines years ago without ever working out how to take it back.
- Mexico City Is Sinking Into the Lake It Drained
Some cities bury their history and forget where. Mexico City buried a temple, built a cathedral on top, and then watched the temple come back up through the floor — because the ground here won't hold still.
- All In, and Grinning
A whole generation of investors has never traded through a bear market. Here is the one trick that matters — and why even Druckenmiller, running the best fund of his era, couldn't dodge it.
- The Ape That Shaves Twice
Japan's record heat pushed men into shorts and the culture grew a new taboo within a season — "leg-hair harassment." The same machine that shaved women is now on men's shins, running the exact program evolution once ran to strip our fur, only faster.
- The $200 Barrel That Never Comes
Iran and America are now shooting across the Strait of Hormuz, the exact scenario a year of forecasts said would send oil to $200. Brent is at $88. The gap between the prophecy and the price is the most instructive thing in the market right now.
- The Well Everyone Drinks From
AI answers are draining the forums and archives they were trained on. The reward for writing knowledge doesn't vanish, it migrates, but three quieter failures decide whether the well refills or runs dry.
- The Rational Gambler
A young generation's appetite for all-or-nothing bets looks reckless until you run the numbers from where they are standing. When the safe path stops clearing the bar, risk-seeking is what the textbook predicts.
- The Two Columns That Never Fight
Every comparison of strategic and tactical asset allocation ends up as the same tidy two-column table. It skips the only question that decides anything, and once you ask it, the choice you thought you had starts to dissolve.
- The Deathbed List Nobody Measured
The famous five regrets of the dying come from a blog post, not a study. What the evidence actually shows is stranger.
- A Prayer to a Man Who Never Lived
While the internet fights over Nolan's Odyssey casting, archaeologists on Ithaca found a shrine to Odysseus that may be older than the Odyssey itself. Which raises an awkward question about who invented whom - and what separates a durable story from a lie.
- Still Someone in There
In late-stage dementia, some patients come back - clear, present, themselves - in the hours before death. The comforting reading is the least interesting one. The real question is where they were the whole time.
- The Open Cage
AI promises to end the necessity of work. History has run this experiment before — on a Pacific island, in oil states, in manor houses — and the results are stranger than either the utopians or the doomers admit.
- We Have Always Paid in Dignity
Fans now wear diapers to hold the front row, and the internet has declared the end of civilization. Constantinople would like a word - and so would your Stone Age ancestors.
- The Same Way, Every Time
England lost the way England always loses. The real puzzle isn't why they choke — it's why knowing they choke doesn't stop it.
- When Winning Stopped Meaning What It Used To
Two great powers, two wars, the same shock — overwhelming force that refuses to turn into victory. What actually changed, and what leaders have to learn again.
- The Phones Don't Stop Ringing, They Ring Somewhere Else
A new government's first move is a retroactive term limit that bars its predecessor's most entrenched incumbents. Democracies have tried this before, and the record on whether it kills old power — or just moves it — is not encouraging.
- The Team That Never Let You Breathe
When two evenly matched sides meet and one dominates completely, individual talent isn't the variable. So where does the surplus come from — and does it transfer to anything outside a football pitch?
- Tokyo Keeps Its Secrets by Making New Ones
A city burned to ash and rebuilt into the most crowded place on earth shouldn't have any secrets left. Tokyo's trick is that it makes them faster than anyone can post them.
- Eat the Skin. Skip the Worry.
One generation was told to eat fruit skins for the goodness; the next was told to peel them for the pesticides. The data says the first crowd was closer to right - and the fear costs more than the residue.
- The Oath Against the Machine
Universities are fighting AI with signed declarations and detection software. Every version of this fight, from banned numerals to banned calculators, has ended the same way — but I think this one is different.
- The Game That Outvoted the United Nations
Football has 211 national members to the UN's 193. How a Victorian schoolboy game became the closest thing humans have to a shared language — and what that says about us.
- The New Gold Rush in AI: Loop Engineering
The industry is discovering feedback loops as if they were new. They are the oldest engineered idea we have — and the track record says a loop is only as good as its anchor. Pick the wrong one and it won't fail to optimize; it will optimize hard, in the wrong direction.
- Books in the Age of the Machine: A Retreat to the High Ground
The 'death of books' story is already wrong on the numbers. The real question is which analogy books follow — radio, cinema, or newspapers — and that answer decides everything.
- Picture the Obstacle, Not the Trophy
Silva 'mind control' came back as 'visualization.' The science splits into a small real effect and a big sales pitch — and the version that actually works is the one nobody puts on a poster.
