Why JansBrief exists
Jan Stenbeck was the smartest person I ever met. Not smart in the way academics are smart. Smart in the way that changes the world. He saw what nobody else saw. He understood that mobile telephony would revolutionise countries that hadn't even laid copper wire yet. He broke state socialist monopolies when everyone said it was impossible. He built empires out of ideas.
Every day Jan received a binder. Two people read all the world's important newspapers and magazines for him and pulled out what mattered. The things others missed. The faint signals that foreshadow great change.
I worked with Jan. I learned from him. And I have never forgotten that binder. JansBrief is my tribute to him, a modern version: global, AI-driven, available to everyone with ambition.
In memory of Jan Stenbeck
1942 — 2002
Jan Stenbeck
Tele2, Millicom, MTG, Metro
In today's edition · 26 June 2026
Scientists have identified the single gene that, when activated, initiates the entire developmental programme that transforms a fertilised egg into a human body. The gene is NANOG, and while it has been studied for two decades in the context of stem cell biology, its role as the on-switch for human embryogenesis has never been demonstrated with this precision. A team used base editing — a refined form of CRISPR that changes individual DNA letters without cutting the double helix — to disable NANOG in human embryos and observed that development simply stopped. No body plan. No differentiation. Nothing.
What makes this more than a laboratory curiosity is the method. Base editing allowed the researchers to knock out NANOG's function cleanly, without the collateral damage that older gene-editing tools inflict. That precision is what made the finding publishable in Nature and what makes it consequential beyond developmental biology. If a single gene governs the earliest and most fundamental decision a human cell makes — to begin building a body — then understanding its regulatory network opens a direct path to advances in fertility medicine, regenerative therapies, and the biology of early miscarriage, which remains poorly understood despite affecting roughly one in four pregnancies.
The discovery also has implications for the synthetic embryo debate. Several labs around the world are building embryo-like structures from stem cells for research purposes. Knowing precisely which molecular trigger launches real development changes the ethical and regulatory calculus: it becomes possible, in principle, to define a bright line between a clump of engineered cells and something that has activated its developmental programme. That distinction matters enormously for legislators trying to write rules for a field that moves faster than any parliament.
For the broader public, the finding is a reminder that the genome still holds architectural secrets of staggering elegance. Two decades of post-Human Genome Project biology have mapped millions of variants, built vast databases, and powered a genomics industry worth tens of billions of dollars. Yet the question of how a single cell decides to become a human being remained, until this week, without a definitive molecular answer. NANOG is that answer — or at least the first chapter of it.
The research also showcases base editing's maturation as a tool. Where CRISPR-Cas9 is a pair of molecular scissors, base editing is a pencil eraser: it rewrites code without breaking the page. That capability is already being tested in clinical trials for sickle cell disease and certain cancers. Its use in embryology — where precision is existential — signals that the technology is ready for the most sensitive questions biology can ask.
Source: Nature · New Scientist · 25 June 2026
Now — The synthetic embryo debate gets a molecular boundary: Stem-cell-derived embryo models — sometimes called "embryoids" or "stembryos" — have proliferated in labs from Israel to Japan to the UK. Regulators have struggled to define when such structures cross the threshold from research tool to something deserving legal protection. If NANOG activation is the trigger for genuine human development, it gives policymakers a concrete criterion. Expect the International Society for Stem Cell Research to revisit its guidelines within the year, and expect national regulators — particularly in the UK, where the Human Fertilisation and Embryology Authority has been cautiously permissive — to use this finding as a reference point.
Soon — Reproductive medicine shifts from statistics to mechanism: Reproductive medicine has long been a field of statistical probabilities rather than molecular certainties. IVF clinics select embryos based on morphology and, increasingly, genetic screening — but they have had no way to assess whether an embryo has successfully activated its developmental programme. NANOG's identification as the master switch offers, for the first time, a potential biomarker for viability that goes deeper than cell count or chromosome number. Clinics and biotech companies working on embryo selection will begin exploring this immediately. Within three to five years, NANOG-based diagnostics could enter the clinical pipeline, transforming how fertility specialists counsel patients and prioritise embryo transfers.
Later — UK electric vehicle sales overtake petrol for the first time, marking the moment an energy transition becomes irreversible: For the first time, more new electric vehicles were sold in the United Kingdom than petrol cars. The milestone, confirmed this week by registration data, is not a statistical blip driven by fleet purchases or temporary incentives — it reflects a structural shift in consumer behaviour, manufacturing capacity, and the economics of ownership. Petrol cars have not merely lost market share; they have been overtaken by a technology that did not exist at commercial scale fifteen years ago. The significance extends well beyond Britain. The UK is the first major European economy to cross this threshold, and the pattern — once an EV share reaches roughly forty percent, the tipping point accelerates rather than plateaus — has been observed in Norway, the Netherlands, and now appears to be replicating in a much larger market. For automakers still hedging between internal combustion and electrification, the signal is unambiguous: the transition does not slow down after it reaches critical mass. It speeds up. Over the next decade, this will reshape everything from petrol station economics to government fuel-tax revenue to the second-hand car market. Countries that assumed they had another decade to plan for the post-petrol era are running out of runway. Source: Carbon Brief · 25 June 2026 ---
Kenyan police locked down much of Nairobi on Thursday, blocking roads and deploying in force to prevent protests marking the second anniversary of the 2024 "Gen Z" uprising against President William Ruto's government. Demonstrators defied the security cordon in several locations. The protests reflect persistent anger over tax policy, cost of living, and governance — the same grievances that drove hundreds of thousands into the streets in June 2024. Ruto's government has failed to translate promises of austerity reform into visible change, and the anniversary protests suggest the social contract remains fractured. Source: The Africa Report · 25 June 2026
Vietnam is moving to fast-track domestic biofuel production, driven by the disruption to global oil flows from the Iran conflict and the Strait of Hormuz attacks. The government is expanding ethanol blending mandates and offering incentives for cassava- and sugarcane-based fuel production. For a country that imports roughly 70 percent of its refined fuel, the pivot is strategic rather than environmental — though it serves both purposes. Vietnam joins India and Brazil in treating biofuels as an energy-security hedge rather than merely a green initiative. Source: Nikkei Asia · 25 June 2026
Zimbabwe's parliament passed Constitutional Amendment No. 3, extending President Emmerson Mnangagwa's tenure to 2030 despite his constitutionally mandated term limit. The diaspora — estimated at over three million Zimbabweans abroad — has reacted with sharp condemnation, with many saying the move destroys any remaining confidence in the country's political trajectory. For a nation that has leaned on remittances and the prospect of returnee investment, the signal is damaging. The amendment follows the familiar playbook of incumbents across southern Africa rewriting term limits, but Zimbabwe's fragile economy makes the cost unusually high. Source: The Africa Report · 25 June 2026
New York's Rent Guidelines Board voted 7-1 to freeze rents on roughly one million regulated apartments for up to two years, fulfilling a central promise of Mayor Zohran Mamdani, the democratic socialist who won office earlier this year. The freeze applies to both one-year and two-year leases from October. Landlord groups have signalled legal challenges, arguing the freeze makes building maintenance economically unviable. The decision is the most aggressive rent intervention in New York since the pandemic-era moratorium and will be watched by cities from Berlin to Toronto grappling with the same affordability crisis. Source: South China Morning Post · 25 June 2026
A container ship was struck by an "unknown projectile" in the Strait of Hormuz, forcing the International Maritime Organization to pause its evacuation plan for vessels stranded in the waterway since the Iran conflict began. Brent crude rose on the news. The attack underscores the fragility of the diplomatic progress around the US-Iran memorandum of understanding — even as negotiators claim a framework is in place, the waterway remains a live combat zone. Shipping insurers are repricing Gulf routes in real time. Source: Financial Times · Al Jazeera · 25 June 2026
Hungary's new prime minister Péter Magyar gave his most extensive international interview since defeating Viktor Orbán, telling *Der Spiegel* that Hungary under Orbán had become a "hostage state." Magyar described the systematic dismantling of independent institutions and media — and his own unlikely path from within Orbán's circle to leading the opposition. The interview matters because Magyar is the first post-Orbán leader in 16 years, and his willingness to confront the autocratic legacy publicly signals a genuine break rather than managed succession. Source: Der Spiegel · 25 June 2026
South Korean equities suffered their worst single-day fall in months, with chipmakers leading a rout so severe that trading was halted. The trigger was a confluence of bad signals: Apple's share price slid, reports emerged that OpenAI may delay its IPO, and the broader AI trade that has lifted semiconductor valuations for two years suddenly looked fragile. Samsung, SK Hynix, and their suppliers bore the brunt. The crash exposes the dangerous concentration of South Korea's market in a single thesis — that AI hardware demand only goes up. When sentiment shifts, the entire index moves as one. Source: Bloomberg · 25 June 2026
Ghana is increasing state purchases of domestically mined gold, building on a policy first introduced in 2023 to diversify central bank reserves away from the US dollar. The move comes amid elevated gold prices and growing interest across West Africa in monetising mineral wealth directly rather than exporting raw commodities. Guinea's recent ban on raw gold exports follows the same logic. A quiet but significant shift is underway: African gold-producing nations are retaining more of their output, altering the flow of bullion that has traditionally moved from African mines to Swiss refineries to Western vaults. Source: Business Day Nigeria · 25 June 2026 ---
In most of the world, floating solar farms make intuitive sense — you put panels on water, the water cools the panels, the panels shade the water, everybody wins. But try that in Canada, where reservoirs freeze solid for months, and the ice crushes everything. Engineers have solved this by building a floating photovoltaic system that uses foam buoyancy and simple aquarium pumps to circulate warmer water beneath the panels, preventing ice from forming around the structures. The system survived a full Canadian winter and kept producing electricity through conditions that would have destroyed any conventional floating array.
What makes this interesting is not the engineering alone but the attitude behind it. The global floating solar industry — projected to grow rapidly — has been designed almost exclusively for tropical and temperate climates. The assumption was that cold-country reservoirs were off limits. These engineers rejected that assumption and solved the problem with components you could buy at a pet store. No exotic materials. No billion-dollar research budget. Foam and pumps.
The implications are significant. Canada, Scandinavia, Russia, and the northern United States have vast reservoirs and hydroelectric dams with surface area that could host gigawatts of floating solar — but only if the ice problem is solved. This design suggests it can be, cheaply. It also means that floating solar is no longer a technology reserved for Southeast Asia and the Mediterranean. It can work anywhere there is water, including places where the water tries to kill it for five months a year.
There is something deeply satisfying about a solution that takes a supposedly fatal constraint — winter — and neutralises it with ingenuity rather than capital. The incumbents in northern-climate energy did not bother trying. Someone else did.
Source: Anthropocene Magazine · 25 June 2026
Lebanese-born, Paris-based composer and artist Tarek Atoui has built a practice around what he calls "sonic objects" — physical instruments designed to make sound visible, tactile, and spatial. In a new interview with *Artnet*, Atoui describes his process of creating sculptures that are also instruments, played by performers and audiences including deaf participants. His work sits at the intersection of contemporary art, experimental music, and accessibility — challenging the assumption that sound art is for the hearing. His pieces have appeared at Documenta, the Sharjah Biennial, and Tate Modern, but his method remains radically handmade: each object is a prototype, never mass-produced. Source: Artnet News · 25 June 2026
A new monograph, *Ishiuchi Miyako: Traces*, offers the most comprehensive account yet of the Japanese photographer who has spent decades photographing the belongings of the dead — Frida Kahlo's prosthetic leg, the clothing of Hiroshima victims, her own mother's lipstick. Ishiuchi's work is not documentary in any conventional sense; it treats objects as emotional portals, insisting that fabric and leather and glass hold memory more honestly than the human face. The book arrives as museums globally are reassessing how to exhibit trauma without exploiting it — Ishiuchi has been answering that question for forty years. Source: Wallpaper · 25 June 2026
A quarter of a century ago, Japanese railways introduced women-only carriages as a response to epidemic levels of groping on packed commuter trains. The anniversary has prompted a national conversation about whether the policy has been a success or a concession to failure. Advocates say the carriages remain necessary — reported incidents of train groping have not declined — while critics argue that segregation normalises male behaviour rather than confronting it. South Korea, Indonesia, and India have since adopted similar measures. The debate is ultimately about whether protecting women from harassment and changing the culture that produces it are complementary goals or competing ones, and twenty-five years of data from Tokyo suggests the answer is less clear than either side would like. Source: South China Morning Post · 25 June 2026
The fifth and final season of *The Bear* drops Thursday on Hulu and FX, and *Eater* has assembled restaurant industry professionals to evaluate the show's legacy. The consensus: the programme's depiction of kitchen pressure, mental health, and the economics of independent restaurants was more accurate than any previous food-world drama. What it got less right — the glamorisation of dysfunction, the suggestion that self-destruction is a prerequisite for great cooking — matters less than what it normalised: the idea that a restaurant kitchen is a workplace deserving the same scrutiny as a trading floor or a surgical theatre. Source: Eater · 25 June 2026
Travel writer Katie Lockhart has bought a home in the Faroe Islands, population 54,000, and writes about what it means to choose radical remoteness in an age of permanent connectivity. Her account in *Condé Nast Traveler* is neither escapist fantasy nor back-to-the-land manifesto — it is a pragmatic reckoning with what a 17-island archipelago in the North Atlantic demands: weather that changes five times a day, a language spoken by fewer people than attend a mid-size football match, and a community where anonymity is structurally impossible. The piece resonates because the desire to disappear has become universal; the willingness to actually do it remains rare. Source: Condé Nast Traveler · 25 June 2026
*Aeon* profiles the "fire-tamers" — a parallel world of French healers who claim to relieve burns, shingles pain, and the side effects of chemotherapy through touch and incantation. The practice operates in plain sight, from remote farmhouses to oncology clinics, where some conventional doctors quietly refer patients. The essay by Susanna Crossman avoids both credulity and dismissal, instead asking what it means that a rigorously secular republic maintains, across generations, a folk healing tradition that neither science nor the state has managed to extinguish. Source: Aeon · 25 June 2026 ---
Governor Gavin Newsom has announced what his office calls the first statewide tool designed specifically to monitor job losses caused by artificial intelligence. Built in partnership with the California Employment Development Department and UC's nonpartisan California Policy Lab, the tracker aggregates unemployment claims flagged as AI-related and cross-references them with industry and occupation data. The significance is less in the tool itself — it is, at this stage, a dashboard — than in the admission it represents. Until now, AI's labour-market impact has been discussed through surveys, forecasts, and anecdotes. California is the first jurisdiction to attempt real-time empirical measurement. The data it generates will shape regulation, retraining budgets, and the political debate over AI's social contract. If the tracker reveals concentrated displacement in specific sectors — customer service, data entry, content moderation — it will give unions and legislators concrete ammunition. If it shows diffuse, modest effects, it will undercut the catastrophist narrative. Either way, we will know more than we do now. That alone is progress. Source: Fast Company · 25 June 2026
As enterprises race to deploy autonomous AI agents — systems that book travel, process claims, write code, and negotiate contracts without human oversight — a startup founded by former Meta AI researchers is building what amounts to a crash-test facility for those agents. Patronus AI has raised $50 million to construct "digital worlds" — simulated environments designed to expose the ways agents fail before they fail on real customers. The company generates adversarial scenarios at scale: misleading inputs, contradictory instructions, edge cases that surface only under pressure. Its investors describe demand as "nearly insatiable," which tells you something about the gap between the speed at which agents are being shipped and the confidence companies have in their reliability. The fundraise also signals a maturing market: when the pick-and-shovel companies for AI safety attract serious capital, the industry is acknowledging — implicitly — that the tools it is selling are not yet trustworthy enough to sell. Patronus is betting that testing infrastructure becomes as essential to the AI economy as cybersecurity became to the internet economy. If agents proliferate as expected, that bet looks sound. Source: TechCrunch · 25 June 2026
A study combining GPS collar data from mountain lions in California's Santa Cruz Mountains with anonymised fitness-app traffic data reveals that pumas have learned to track human recreation patterns with startling precision. The animals adjust their movement, feeding, and resting schedules around peak hiking and biking hours — not in broad day-versus-night terms, but in response to specific trail-usage patterns that vary by day of the week and season. The finding complicates the standard wildlife management assumption that animals near human settlements are "habituated" and therefore less wild. These pumas are not habituated. They are conducting surveillance. The research suggests that as fitness apps generate ever-richer datasets on human outdoor behaviour, those same datasets — when cross-referenced with wildlife tracking — could revolutionise conservation planning, trail management, and our understanding of how apex predators coexist with the species that displaced them. Source: Anthropocene Magazine · 25 June 2026 ---
50,000
50,000
That is how many French households lost electricity on Thursday as the European heatwave pushed underground cables beyond their thermal tolerance. Enedis, France's grid operator, activated its emergency rapid-intervention force — a measure typically reserved for storms — because the heat itself was degrading infrastructure designed for a cooler climate. The number is striking not for its size but for its cause. Power grids fail in cold snaps and hurricanes. They are not supposed to fail because it is simply hot. But Europe's electricity infrastructure was built for a continent where summer temperatures rarely exceeded 35°C. This week, Germany is forecast to reach 41°C. The grid was engineered for a planet that no longer exists. As the NANOG discovery in today's Signal reminds us, systems have master switches — and Europe's grid is discovering that heat is one of them. The 50,000 figure will grow. Not because France is uniquely vulnerable, but because every European grid shares the same design assumptions. The continent is learning, expensively, that climate adaptation is not a future project. It is an infrastructure emergency happening now, in real time, in the cables beneath the pavement.
Source: Le Monde · Enedis · 25 June 2026
In perspective
That is how many French households lost electricity on Thursday as the European heatwave pushed underground cables beyond their thermal tolerance. Enedis, France's grid operator, activated its emergency rapid-intervention force — a measure typically reserved...
8 — Today's Wisdom
Researchers have found the gene that kicks off the entire human developmental program. A single gene, NANOG, and without it nothing happens. No body, no differentiation, no life. It's breathtakingly elegant, and it says something important about how complex reality is actually built.
I've been starting companies my entire adult life, and the most underrated insight is that everything big begins with a single activation. Not a plan, not a committee, not a feasibility study. One action that sets everything else in motion. Before that action, there is only potential. Afterward, there is direction, momentum, a chain reaction that no single person fully controls anymore.
This applies to embryos and it applies to companies. It applies to societies too. Péter Magyar in Hungary describes 16 years under Orbán as a hostage state, and now he has activated something new. No one knows exactly where it leads, but the direction is there. That's more than Hungary has had in a long time.
We live in an era that worships analysis, risk mitigation, and waiting. But biology teaches us that life doesn't begin with a risk assessment. It begins with a gene switching on and saying: let's go. Everything else follows. We should apply that insight more often. Not just in the lab, but in every decision that's about building something that doesn't exist yet. Activate. Begin. The rest will come.
Johan Staël von Holstein
Serial entrepreneur · wakopa.ai