Joe Kselman retweeted
Two other safety researchers and I were fired from OpenAI last week. We wrote this letter to leadership.
I believe we were fired for prioritizing safety over the near-term interests of OpenAI as a corporation.
Joe Kselman retweeted
U.S. solar capacity nears 300 GW, enough to power 50 million homes: National cumulative solar deployment hits 299.4 GW as utility-scale additions propel a 45% year-over-year Q2 expansion, while manufacturing… dlvr.it/TVb81c #Photovoltaics #EnergyStorage #RenewableEnergy
Joe Kselman retweeted
Developing nations don't need a dirty coal era to grow: India is leapfrogging it
>India’s power sector emissions flatlined for 2 straight years, with clean energy meeting 100% of demand growth
>While US coal rebounded (up 13%), India installed more solar than the USA and cut fossil generation by 3.3%
>Even better: India is deploying 5x more wind and solar per capita than China did at the same stage of development
Wires chewing pipelines
carbonbrief.org/analysis-ind…
Joe Kselman retweeted
MIT published a brutally honest report on what AI is doing to students.
A committee of professors and students spent five months studying how AI changed learning on campus, and the findings read like a warning to every university on the planet.
Study groups are disappearing. Office hours are emptying out. Problem sets and take-home exams no longer prove anything, because AI can produce credible solutions to almost any written assignment in the undergraduate curriculum. Students who lean on chatbots lose mastery and confidence, and some slip into what the report calls cognitive surrender, reaching for AI at the first hint of struggle.
The numbers are rough. 46 percent of surveyed MIT undergrads use LLMs daily. 90 percent worry about their own overreliance. Undergrads who feel AI makes them replaceable now outnumber those who feel it makes them capable.
The committee's answer surprised me. They refused to fight AI with surveillance. The report calls AI detectors unreliable, says lockdown browsers feel like spying, and warns that policing students builds a classroom atmosphere of mutual distrust.
Instead, MIT wants to rebuild education around the things AI can't replace. That means oral exams, semester portfolios, in-person project work, and a required social component in every subject. The report even floats the idea of rethinking grades entirely, since without a GPA to optimize, much of the incentive to cheat with AI evaporates.
The committee warns professors against replacing undergrad research assistants with AI agents just because they're cheaper, because a university exists to grow people, not output.
The most famous tech school on earth admitted the machines broke its way of teaching. Its answer is more humans, not more software.
Joe Kselman retweeted
Socket to the sun: Ten states in the United States have passed laws permitting plug-in solar, with more to follow imminently. Low-income households, renters and temporary workers under pressure from high… dlvr.it/TVQlBs #Photovoltaics #EnergyStorage #RenewableEnergy
Joe Kselman retweeted
Bullish on solar. It's time to get excited.
@optivolt is embedding power electronics directly inside solar panels. Existing panels are wired in series like Christmas lights. If cells get shaded (by a tree, dirt, bird poop, snow) they choke the current flowing through their section of the panel.
Optivolt's power balancer redistributes energy inside the solar panel at the substring level in real time, letting weaker cells borrow from stronger ones; instead of a shaded cell dragging down its neighbors, the strong cells carry it.
They claim up to 6x more output in shading compared to incumbent installs.
"Sunlight is the most abundant energy source available to civilization yet we somehow capture almost none of what it offers. Solar isn’t intermittent the way people casually assume; it's predictable, cyclical, and, with enough capture and storage, continuous. Difficulties arise only between photons hitting solar cells and electrons reaching the grid."
Solar spent a decade as the second-class citizen of American energy: dumb panels on rooftops, made in China, sold on thin margins. The glamorous money went to nuclear instead.
For Arena, @freeshreeda on @optivolt and the case for solar as a technology, not just a commodity.
Joe Kselman retweeted
Every number here is real. The comparison is missing.
Per megawatt-hour, solar produces about 2 kg of inert, recyclable waste. Coal produces about 90 kg of ash laced with arsenic, mercury and lead, plus a tonne of CO2.
Cumulative solar panel waste 2016 to 2050 runs 54 to 160 million tonnes. Coal ash over the same window: 46 billion tonnes. Coal generates monthly what solar is projected to generate in 35 years.
A turbine gets replaced once every 25 years. A coal plant gets refueled every day it runs. You've described a maintenance schedule and called it a nightmare.
Growing waves of wind turbine and solar panel retirements starting in the 2030s will expose the massive physical nightmare of continuous renewal and replacement.
Cumulative waste is projected to reach 78 million tonnes for solar panels and up to 200 million tonnes for wind turbines by mid-century.
Because wind and solar have low capacity factors and finite lifespans (15–25 years), generating firm power requires significant overbuilding, backed by battery storage, transmission and costly backup energy.
Replacing this fleet on a continuous cycle guarantees an endless demand for raw materials, mining, and manufacturing.
It creates a replacement loop that will multiply mining throughput for steel, copper, aluminum, silicon, silver, rare earths and composite blade materials. Expanding to multi-terawatt scales will exacerbate existing critical mineral shortages.
Closed-loop recycling at this scale remains largely aspirational as blade composites are notoriously difficult to recycle, with large volumes historically sent to landfills. Decommissioning, and recycling infrastructure lag far behind deployment, most likely leaving behind significant unfunded liabilities.
Ultimately, these challenges will become physical, logistical and economic, reflecting the massive reality behind the ambition of the buildout.
Joe Kselman retweeted
Plug-in solar (also known as “balcony solar”) could be transformational in expanding clean energy & empowering renters & homeowners to lower their electric bills. It’s why I’m authoring legislation (Senate Bill 868) to allow people to use them.
These small, low cost devices can be plugged into a wall socket. They generate a modest amount of solar energy to power a portion of your energy needs. That means you’re drawing less from the grid & your bill is lower. Under existing law, people need to get full interconnection agreements with their utilities in order to use plug-in solar. Almost no one engages in that onerous process. SB 868 eliminates that requirement.
Currently, renters typically cannot install rooftop solar & many homeowners can’t due to physical constraints or not being able to afford the upfront investment. Plug-in solar allows these folks to benefit & lower their bills.
Joe Kselman retweeted
This is the most important week in the history of animal welfare: if the Save Our Bacon Act passes, not only will it kill the most impactful welfare-related laws of the past decade, it will also restrict any future progress.
The Senate is currently deciding whether to add the SOB Act to the Farm Bill, so if you care about this stuff but have been waiting for the right moment to help, this is that moment.
If you want to fight this and can donate six figures or more, please DM me or Dwarkesh.
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In case it's helpful context, the SOB Act aims to block states from deciding their own laws about animal products sold within their borders.
This is massive federal overreach. But the meat industry supports it because they haven't been able to stop state-level ballot measures.
Take California’s prop 12. When it passed in 2018, it banned the sale of pork from pigs kept in gestation crates, where they live in forced confinement for years without ever once being able to turn around (read Dwarkesh's tweet for a more detailed and horrifying description).
The industrial pork lobby fought prop 12 hard, and once it passed, they poured money into getting it struck down. They even brought it to the Supreme Court, where it was upheld.
So the pork lobby pivoted and now they're focusing on getting the SOB Act passed. If it passes, it would immediately unwind prop 12 alongside a bunch of other important state-level laws.
I want to spend the next decade building on the momentum of victories like prop 12, not just relitigating the same bills we spent the 2010s fighting for. That’s only possible if the Farm Bill passes without the SOB Act.
In medieval times, within the arms race of ever more demonic torture devices, some sadistic genius came up with the idea of the Little Ease.
This was a prison cell built so small in every dimension that a grown man could not stand upright in it nor lie down at full length nor properly sit.
The pain is relentless and without relief and inflicted by one's own body. Prisoners were known to go insane within a few days. A stay at the Little Ease was considered even more cruel than the rack, the thumbscrew, and the other ghoulish machinery of the Tower of London.
A breeding pig will spend her whole life in a version of that box.
These are social, roaming creatures (more intelligent than dogs) who will never leave this corset of steel.
They have been selectively bred to be bigger than their frames can support. Yet we put them in cells so confined that they cannot comfortably sit, and their attempts to do so (for example, by sneaking their limbs into adjacent stalls) reliably lead to fractures and sprains.
They cannot sweat, yet have nothing to roll around in to cool themselves off. Except their own manure, which (contrary to the common misconception) they are so averse to (thanks to their strong sense of smell) that new sows will often suffer from constipation to avoid soiling the space from which they eat and sleep.
Here is how the writer Matthew Scully described what saw at one of Smithfield’s “gestation barn”:
> “Sores, tumors, ulcers, pus pockets, lesions, cysts, bruises, torn ears, swollen legs everywhere. Roaring, groaning, tail biting, fighting, and other “Vices,” as they’re called in the industry. Frenzied chewing on bars and chains, stereotypical “vacuum” chewing on nothing at all, stereotypical rooting and nest building with imaginary straw. And “social defeat,” lots of it, in every third or fourth stall some completely broken being you know is alive only because she blinks and stares up at you … creatures beyond the power of pity to help or indifference to make more miserable, dead to the world except as heaps of flesh into which the [insemination] rod may be stuck once more and more flesh reproduced.”
—
The Save Our Bacon Act is trying to unroll the few state protections we have against this barbaric cruelty - for example California’s Prop 12 - which banned the sale of pork from pigs kept in gestation crates.
It’s incredibly important we don’t end up with this sort of federal preemption.
SOB will not only kill the most important animal welfare related laws in the US of the past decade, but more importantly, it will also restrict ALL future legislative progress (aka how the animal welfare movement has gotten its biggest wins).
The Senate is currently deciding whether to add the SOB Act to the Farm Bill.
With relatively little money now, we can discourage the most pivotal senators in the Ag committee from backing this amendment.
Defeating this bill is even more important given the amount of philanthropic funding I expect to come online in the next year or two.
It will plausibly be over 10x more expensive to repeal SOB than to prevent it from passing in the first place.
All that money that could be spent transforming our society's relationship to mass animal suffering will instead have to be spent just getting us back to where we are right now.
That's why money spent now fighting this bill (and I mean right NOW) is so effective.
If you’re in a position to donate six figures, please DM me.
Joe Kselman retweeted
This is really stupid, and it’s not getting enough attention.
The Trump administration is pulling a working $368 million ocean monitoring system out of the water, equipment taxpayers already bought, built, and sank into the deep ocean.
And they are doing it right when the oceans are behaving in ways that alarm the scientists who study them.
Record-breaking temperatures.
A system of Atlantic currents that may be lurching toward collapse.
The response?
Yank out the instruments and walk away.
That is not budgeting. That is smashing the gauges while the engine is on fire and calling it efficiency.
For what? The Trump administration dressed it up as a “nimbler approach” and “smart lifecycle management,” which is fancy nonsense for “we shut it off and hoped nobody would ask why.” There is no return-on-investment analysis. They cannot show taxpayers save a dime, because the gear is already paid for and the science it produces protects real money and real lives.
The kicker: the same people killing the monitors want to mine the deep sea for minerals. So they are destroying the only tools that could measure what that mining does. That is not an accident.
That is the point. You cannot see the damage if you break the instruments first.
cnn.com/2026/06/03/climate/o…
Joe Kselman retweeted
DOGE didn't make a dent in the deficit, but it did bring back screwworm and enable a historically large new Ebola outbreak, so it's not like they didn't achieve *anything*
Joe Kselman retweeted
Das kann man nur krass unverantwortlich nennen.
Die US-Regierung will nicht, dass die Menschen wissen, was die fossilen Emissionen in unseren Meeren anrichten.
Als wären die Klimafolgen weg, wenn man sich die Augen zuhält.
t-online.de/nachrichten/ausl…
Joe Kselman retweeted
Yesterday I told you the government is pulling 900 ocean monitoring instruments out of the water.
Here is the part that should make every American angry, regardless of where you stand on climate.
Congress voted to fund this network. Not once. Twice. The Trump administration proposed cutting it by 80 percent in 2025. Congress restored the money. Proposed the same cut in 2026. Congress restored the money again.
So the administration labeled it a "descope" and ordered the instruments pulled anyway.
That is not a budget disagreement. That is an executive branch telling the legislative branch that its votes do not matter. The public paid for this infrastructure. Congress protected it. One office in Washington decided the public should not have it.
This is the pattern I document in 𝑾𝒆 𝑨𝒓𝒆 𝒕𝒉𝒆 𝑩𝒂𝒅 𝑮𝒖𝒚𝒔. It is not about left or right. It is about who decides what Americans are allowed to know about their own planet.
Who should make that call?
Joe Kselman retweeted
Eai, quem disposto a ir pra Índia nos próximos dias? 🇮🇳🥵
Boa parte do país terá sensação térmica acima de 50°C, alguns pontos chegando nos 55°C.
Pensa na loucura.🫠
Detalhe, essa região que atingirá a sensação de 55°C, significa também que vai atingir 33°C do bulbo úmido.
Lembra do que eu sempre falo sobre o bulbo úmido letal?
Acima de 35°C do bulbo úmido, quando a umidade está saturada e a temperatura do ar acima de 35°C temos o BULBO ÚMIDO LETAL. Nesse nível NENHUM ser humano resiste por mais de 2 horas, idosos e bebês cerca de 30 minutos para entrar em colapso térmico.
A Índia é um grande exemplo de uma nação a beira de uma catástrofe, e estamos falando do país mais populoso do mundo, quase 1.5 bilhão de pessoas.
Com o aumento na média da temperatura mundial em 3°C até 2050, essa região irá atingir o bulbo úmido letal várias vezes, significa que teremos migração de milhões de pessoas nas próximas décadas, isso só falando da Índia.
Esse é o caos que muitos analistas geopolíticos não estão incluindo nas suas análises sobre a mudança na ordem global.
Eu incluo porque é o fator principal, estamos falando em colapso civilizatório global, isso conta muitos mais do que as loucuras dos EUA em desespero pelo seu declínio hegemônico.
Os países precisam correr para conseguir fazer adaptações climáticas profundas, com o atual modelo de governança assimétrico e imperialista, não está sobrando dinheiro para as nações investirem nem na transição energética para reduzir a velocidade em que o planeta aquece.
É uma loucura ver isso e saber que um país está tentando sabotar a sobrevivência de várias nações e a estabilidade internacional.
Insanidade pura.
Joe Kselman retweeted
Everyone COPY this video, share it far and wide. Paramount Skydance billionaire baby David Ellison can’t handle that Stephen Colbert is getting millions of views . @Youtube we will cancel our subscription as we did when we dumped @paramountplus.
Joe Kselman retweeted
Almost any building, school, or parking lot could be turned into a #solarpower plant and provide #cleanenergy for our cities and homes.
RT if think more buildings should get a #solar upgrade.
#ActOnClimate #ClimateEmergency #ClimateCrisis #GreenNewDeal #renewable
#energy
Joe Kselman retweeted
Everyone who cares about climate should understand this. Texas, with no pro-climate policies, has blown passed California in clean energy. In large part because Texas has less red tape and makes it easier to build.
Joe Kselman retweeted
c'est fou comme la nature reste la plus grande ingénieure du vivant, je passe mes nuits à explorer des publications et chaque semaine je tombe sur un papier qui me retourne le cerveau plus profondément que toutes les annonces d’OpenAI réunies
celui signé par cette équipe de Cornell est de cette trempe, ils proposent un modèle de biorafinerie circulaire où le mycélium des champignons fermente nos déchets agricoles et alimentaires pour les transformer en protéines de haute qualité et en composés bioactifs
autrement dit faire de la nourriture humaine à partir de ce que l'industrie agroalimentaire jette aujourd'hui par millions de tonnes
le détail technique qui change tout c'est que les fibres de mycélium imitent naturellement la texture des fibres musculaires sans aucun procédé de transformation contrairement aux protéines végétales qui nécessitent une extrusion industrielle lourde pour ressembler à de la viande
l'équipe détaille les paramètres bioprocess critiques pour maximiser le rendement, les stratégies de prétraitement des résidus agricoles, la cocultivation entre plusieurs souches fongiques & l'ingénierie génétique pour booster la productivité, le tout dans une logique de biorafinerie distribuée qui permettrait apparemment à chaque région de transformer ses propres déchets en alimentation locale
je ne sais pas si vous vous rendez v’ compte de l'échelle du problème que cela résout car j’avais vu par ex que l'élevage représente 53% des émissions de gaz à effet de serre liées à l'alimentation et occupe 40% des terres habitables de la la planète, on jette environ 1/3 de la production alimentaire mondiale chaque année soit 1,3 milliard de tonnes de matière première pourrissante et voilà que des chercheurs nous montrent qu'on peut transformer cette décharge en source protéique complète avec un PDCAAS proche de 1 c'est à dire équivalent au lait à l'oeuf et au soja en qualité nutritionnelle, le tout en quelques jours de fermentation au lieu des 18 mois que demande un boeuf
les applications concrètes qui sortent de cette logique de biorafinerie semblent vertigineuses, des unités de fermentation modulaires installées directement dans les coopératives agricoles pour transformer le marc de raisin en bavette de mycélium, des fermes verticales fongiques en sous sol qui décomposent les drêches de brasserie en steaks complets, des systèmes embarqués pour les missions spatiales longue durée où le mycélium recycle les déchets organiques de l'équipage en repas frais et même des applications militaires pour nourrir des troupes en autonomie complète dans des zones isolées
depuis la révolution néolithique notre alimentation repose sur une logique linéaire d'extraction massive de la terre via l'agriculture intensive et l'élevage et voilà que la nature nous montre qu'on peut fermer la boucle en faisant pousser nos protéines sur nos propres déchets, qu'on peut programmer leur composition nutritionnelle en changeant le substrat comme on change un régime, qu'on peut produire en quelques jours ce que l'élevage met des années à fournir en consommant 1000 fois moins d'eau et de surface, pour moi c'est le passage de l'agriculture extractive à l'agriculture circulaire et les ingénieurs qui comprendront cette bascule avant les autres redéfiniront entièrement ce que veut dire nourrir l'humanité au 21e siècle
le vrai message que vous devez comprendre ici c'est que le futur appartiendra à ceux qui sauront dialoguer avec le vivant plutôt que de l'écraser & qui comprendront que 4 milliards d'années d'évolution ont déjà résolu la plupart de nos problèmes d'ingénierie et qu'il suffit d'apprendre à lire ce manuel d'instruction inscrit dans chaque cellule pendant que la silicon valley dépense des milliards pour empiler des GPU et générer des images, des chercheurs en blouse blanche apprennent à un champignon à transformer la peau de banane en steak
pour l'avenir de l'ingénierie est définitivement biologique
Joe Kselman retweeted
New study: most climate models underestimate the decline of the Atlantic overturning circulation #AMOC. The AMOC is on course to slow by more than 50% by the end of the century.
Very likely the AMOC will then be past the tipping point for full shutdown. 😨
us.cnn.com/2026/04/16/climat…
Joe Kselman retweeted
We still talk about the British conquering India, but that phrase disguises a much more sinister reality. For it was not the British government that began seizing chunks of India in the mid-eighteenth century, but a dangerously unregulated private company headquartered in one small office, five windows wide, in the city of London. Bringing together decades of meticulous research and masterful narration, William will tell us the remarkable story of how the Mughal empire, which then generated just under half the world's wealth, disintegrated and came to be replaced by the East India Company—an aggressive colonial power in the guise of a multinational corporation.
Do not miss the remarkable story of India and empire as it has never been told before, unfolding a timely cautionary tale of the first global corporate power.
William Dalrymple Tickets & Tour Dates - Fane share.google/OX8Wub9Sp4xLaek…







































