Japan's railway system, Roman combat psychology, Anthropic is destroying books, the Dutch empire, MIT AI report, lessons in construction, pass-through business fortunes, MLS consolidation abstract, private equity's exit issues, and Liechtenstein's magic princedom.
Why Japan has such good railways - Works in Progress Magazine
Japan's freight rail system is nine times more productive per kilometer than America's. Railway companies own the cities. Tokyu and Hankyu don't just operate trains, they build suburbs, operate the department stores, run the buses, and even own the baseball teams. Japan's zoning is shockingly liberal (30% of urban land has been cooperatively replanned through land readjustment), allowing hyperdense downtown cores surrounded by low-rise suburbs, a combination that funnels millions onto trains daily. The result is a system that turns large operating profits while European and American railways bleed subsidies, all because Japan let private companies capture the value they created instead of just charging fares.
Pre-Modern Battlefields Were Absolutely Terrifying
Philip Sabin's reconstruction of Roman combat starts with a blunt premise: hand-to-hand fighting is so psychologically unbearable that humans will do almost anything to avoid it. Ancient battles couldn't have been the extended melees that Hollywood or the Iliad portrals. Instead, Sabin argues, they alternated between tense standoffs (men hurling insults and javelins from just out of sword range) and brief, localized surges led by natural fighters or standard-bearers trying to break the enemy's nerve. The side that flinched first in these flurries would step back, and over hours those small retreats accumulated into decisive ground loss. This explains why victors rarely lost more than 5% of their men while the routed could be slaughtered wholesale. Battles were resolved by morale collapse after hours of sustained blade and shield work.
Destroying Books to Build a Mind
Anthropic's "Project Panama" has been buying obscure books through shell companies, guillotining them, and feeding the scans into Claude. These aren't rare first editions, but academic monographs on sewage plants and glass architecture that were already headed for the dumpster. One bookseller hid a GPS tracker in a shipment and watched it arrive at an industrial scanning facility running 24/7. A federal judge ruled the whole operation fair use, reasoning that A.I. training extracts only unprotected ideas and facts, the way any reader would. Though no antiquarian books were harmed, but the authors whose niche scholarship now powers chatbots without compensation. Though as one researcher noted, these texts may reach more people as training data than they ever did on library shelves.
Age of Invention: How the Dutch Did it Better
Josiah Child's 1665 wishlist of Dutch advantages reads like a how-to guide England spent centuries ignoring: transferable bills of exchange, actual banks, public land registries, merchant courts that didn't take half a year per case. In that era, England kept trying to fake its way to Dutch-level interest rates by simply lowering the legal cap — first to 8%, then 6% — while the Dutch market rate fell organically to 3–4% (even as their legal max stayed at 12%). Resultingly, credit got squeezed, and English capital fled to higher-return colonial ventures and the slave trade instead of financing productive domestic growth.
Report – AI and Education
MIT's faculty committee spent five months investigating generative AI's impact on campus and published its results. The p-set, the study group, the UROP — foundational rituals of an MIT education — are quietly collapsing under algorithmic convenience. Students are using AI constantly (with resignation as much as excitement), instructors are split between enthusiasm and refusal, and the "social contract" binding them together is fraying into mutual suspicion. The report's answer isn't a blanket ban or laissez-faire embrace but a call for wholesale curriculum redesign grounded in eight principles, the sharpest being "lean into learning" — a reminder that the point of education is producing mature humans, not efficient problem-solvers who outsourced the struggle.
50 Things I’ve Learned Writing Construction Physics
Brian Potter's 50 hard-won lessons from four years of writing Construction Physics read like a catalog of obliterated misconceptions. Prefab homes aren't cheaper (except mobile homes), construction hasn't gotten less innovative than other industries, single-family homes use less energy per square foot than apartments, and the worst US bridges have dropped 70% since 1992 despite endless infrastructure doomsaying. The through-line is that nearly every tidy narrative — Levittown revolutionized homebuilding! The Jones Act killed American shipbuilding! — crumbles under scrutiny, revealing predecessors, confounders, and contingencies you didn't see coming.
The Wealthiest—and Stealthiest—Class in America
While we fixate on billionaires, five million American households worth at least $5 million have quietly amassed collective wealth thirteen times larger than the Forbes 400. Zidar and Zwick, two economists who became "Tax Ninjas" combing through IRS data, discovered that these fortunes come from unglamorous pass-through businesses: mozzarella factories, gutter suppliers, hot-dog chains. The 1986 tax reform accidentally created "the best tax deal in America" by letting business owners pay individual rates instead of corporate ones, and a certain breed of monomaniac capitalized ruthlessly (one sabotaged a rival's opening by poaching back the entire staff the night before). The productivity gains are real, but so is the darker pattern: nine cents of every dollar that used to go to workers now flows to owners instead.
Revenge of the Realtors
A law student spent his J.D. arguing that the mass consolidation of Multiple Listing Services — the databases that power home searches — actually enhances competition, even as the number of MLSs has shrunk from over 1,000 in 2005 to around 630 today. Traditional brokerages are fragmented and local, while tech challengers like Zillow and Redfin operate at national scale with venture backing. Merging MLSs gives the old guard the bargaining leverage and operational efficiency to survive against platforms that have already become indispensable to millions of buyers. It's a procompetitive defense of consolidation that doubles as a survival strategy for an industry watching its moat drain in real time.
Private Equity Firms Hold Assets Longer in High-Interest-Rate Era
Private equity's original promise was simple: buy companies, fix them in about a decade, return cash to investors. Now the median fund life has ballooned to 15 years, with firms warehousing assets in "continuation vehicles" or evergreen funds that never expire. Meanwhile, data from Kroll shows returns stagnate after eight years and then decline, and limited partners are getting distributions at a 16-year low while watching their capital get trapped in opaque, single-asset vehicles they never signed up for. Hotel California, indeed.
Liechtenstein: the magic princedom
A British writer spends five days in Liechtenstein expecting to confirm his friends' dismissal of the microstate, and instead finds a peculiar intimacy: a country where dating requires strategic forethought (everyone knows whose car is parked where), hunting clubs enforce biodiversity by law, and the princess personally receives teenagers who pass their exams. The place runs on a trinity of God, prince, and fatherland — tattooable across one's chest, apparently — yet somehow balances Catholic conservatism with same-sex partnerships, elite banking with factory workers making the world's dentures, and a monarchy so beloved that citizens voted to give their prince veto power over their own referendums. You can paraglide the entire length of the country in fifteen minutes, which is both the joke and the point.
Extras:
Leopold Aschenbrenner, Executive Order #6102, vibe-lawyering, curse of the Bahia Emrald, the "Road Not Taken", search fund structures explored, secret stories of the MTA, flowers of Chanel No. 5, buying small companies, Craigslist's secondhand grave market, sanctions vs. war, and the case against travel.