A pragmatic technologist, experienced in finance, travel, retail, whatever. Primary focus on distributed systems, especially microservices, and Erlang/Elixir.

Chicago, Illinois
Joined May 2008
Scott Pfister retweeted
Heads up, @OpenAI and @AnthropicAI. Rumor reaches my ears that you're doing a stupid thing, and should stop before you damage yourselves. I hear you've now nerfed your models so that when people try to use them to clean the spamware and spyware out of their televisions, you block that. If you really want Chinese open-weight models and open-source projects like OpenWaldo to eat your lunch, crippling your models so that people paying expensive subscriptions can't use them for completely legitimate purposes is a great way to accomplish this. If, on the other hand, you'd rather have a volume business, maybe stupid arbitrary restrictions that look like they have the sole purpose of protecting corporate sleazeballs aren't such a good idea. A word to the wise should be sufficient.
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Scott Pfister retweeted
Grok @bot is awesome. I like this feature.
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Heartbreaking what Europe is turning into.
We keep telling the French Jews to leave. It's not that easy. Had coffee with my French colleague. It could have been me, except for Dreyfus. It could have been me, if I hadn't broken my parents' heart and left anyway. A story. " I'm French. That is what I tell myself when the news come in, as if loyalty were still a kind of protection. My mother’s people have been in Alsace since the sixteen hundreds. We are cousins of Alfred Dreyfus— the name is still said in the family the way other people say the name of a grandfather who came home from the trenches. My father was an orphan of the Shoah. He arrived with nothing, the French police arrested and sent his parents to the Nazis, and stripped him of his citizenship for 12 years. But he decided France was worth loving anyway. He taught us the Republic was not perfect, but it was ours to cherish and make better. I believed him. I finished Sciences Po in the happy 2000s and walked out into Paris feeling that, for the first time, Jews were completely at home. I wanted the big corporate firms. I had the grades, but I do not work on Saturdays. In those years that was still a requirement, not a preference. So I built a private practice, not so bad. My husband is an engineer. Between us we pay the taxes, the school fees, the mortgage, vacations in France. In 2023 we went to Israel before the catastrophe. We were happy to be French Jews. We told ourselves we were the proof that it worked. Of course there were problems... but not like now. There is always the other tax, the one that never appears on any form. Kosher food costs more. The shops are fewer. Schools... The need to always stay a model citizen—never the one who asks for special treatment, never the one who makes the room uncomfortable, never the one who reminds anyone that the Republic’s universalism has always had exceptions. We paid the four hundred and fifty euros a month for each of the three children so they could go to the Jewish school, because the public system is no longer a place you send a child with our last name. I smiled at clients who made jokes about Jewish lawyers ethics but expected me to twist the laws for them as a matter of course. I stayed honest. I proved, year after year, that I belonged. Now many clients are "uncomfortable". Some say it is “because Palestine.” Others do not say anything; their partners simply will not sit across from a Jew. I watch the billing time like a hawk. Last month they sprayed my plaque in the street with a "Zionist w...re" and a "Palestine map." Outside, the city is still sweeping glass from the weekend. A synagogue in the nineteenth was ransacked. Groups warned m people not to go for afternoon prayers because the streets were not safe. I know the figures—more than thirteen hundred acts last year, half of every religious crime in the country, and we are less than one percent. I know friends are leaving. Nearly four thousand already this year. And I see the new arrivals to France. They do not arrive as model citizens. They do not hide their names or their calendars or their demands. They lay down their own rules in the neighborhoods, in the schools, in the streets, and the Republic that once asked me to prove I was French enough now asks nothing of them but taxes me extra to care for them. Their Djihadi Antisemitism is" an opinion", not as the old poison it is. I am still expected to be the quiet one, the integrated one, the one who pays the extra private guards when they overwhelm the police. If we go, my mother stays. 1/2
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This is how to think about comedy.
"Thoughts on the Shane Gillis monologue?!" Jimmy Carr's brand-new tour, Killing Jokes, starts with dates across the UK & USA in 2027. Sign up to the mailing list for exclusive access to the presale on Wednesday 21st October: jimmycarr.com/join-mailing-l…
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Wow, @amazon - not only are you forbidding us from using bots with you, you’ve even been stripping our information from our receipts? @bot remind me 1 month before Amazon prime renewal happens so I can cancel it
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I have no words.
Heil Honey I’m Home! (1990) 
A British show parodying 1950s sitcoms, about Adolf Hitler and Eva Braun living next door to a Jewish couple in 1938 Berlin. Eight episodes were produced, but only the pilot aired. For the skeptics: here’s the episode youtu.be/mf9jJx0NSjw?is=tJzJ…
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It’s interesting how obvious, and generally disappointing most “faith based” movies are. They start with the premise of making a “faith based”movie rather than a good film. Yet the best “faith based” movie has already been made. I’ll bet you’ve seen it… youtu.be/8sLTcQIxKCo?t=483&i…
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The link was supposed to jump you to the point where it becomes clear how religion embraced it - go to 8:03 and you’ll get it. Trust me.
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Scott Pfister retweeted
Replying to @abimaelmartell
• comments go stale very quickly and confuse agents and people • they are often used by agents to explain workarounds that would've been better off actually fixing the code instead • they are not enforceable and waste your agents' tokens my point is that moving prose (comments, rules, agent.md, skills) into deterministic lint rules, better API design/types, is far more effective, enforceable, and token efficient. comments are simply a crutch that agents will happily misuse
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Might just tell grok bot to repost all of @poteto ‘s posts … she’s got her head on straight! Learning how to manage agents so they can be trusted and not outsourcing our agency and accountability is the way to go. Writing also still matters!
i love writing. i never let agents write for me. whether it's docs, or tweets, or shitposts, or even prompts (okay maybe that one's harder as agents manage other agents) there's a simple reason for that: i still strongly believe that writing is thinking. it's a skill i hope to never give up. it's also important to me that whatever i say is always authentic, mistakes and all. my favorite posts are the ones that i just full send without any editing i suspect it also helps with prompting. being able to clearly express what i want, and knowing the vocabulary i need to be able to direct my agents does seem to make for more effective usage of agents. in the same way that engineers have an advantage when we prompt agents to write code, because we are intimately familiar with the words that make up the discipline knowing the right word incantations to get an agent to produce a desired goal almost feels like spellcasting. as models get more capable, and that input box looks more and more like a magic box that can output anything, words become the interface between you and the genie there may come a time when we give up the keyboard in exchange for brain-computer interfaces. but until then, i'm writing every word.
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Scott Pfister retweeted
My post about France went viral. Thousands of likes. Many Americans told me: "Democrats aren't socialists. America will never be France." I want to answer that seriously, step by step. Start with a simple observation. Look at what has gotten cheaper in America over the last 25 years: TVs, phones, software, clothes, toys. Now look at what has exploded: college tuition, healthcare, childcare, housing. What separates the two lists? The first lives in competitive markets. The second is exactly where government is most involved: subsidies, mandates, licensing, zoning, regulation. College. Washington lends students almost unlimited money. Universities know the money will always come, so they raise tuition and hire more administrators. The student pays the bill for twenty years. More government money, higher prices. Housing. Why can't a nurse buy a home in the city where she works? Not because of capitalism. Because of zoning laws, permits, environmental reviews, years of procedure to build a single building. The most expensive places to live in America are the places where it's hardest to build. When building is nearly illegal, prices explode. Healthcare. The patient almost never sees the price. A third party pays, regulations limit who can compete, and costs climb year after year with no one able to say no. So here is the trap. The problems you suffer from are not the failure of free markets. They are the places where the market has already been replaced by the state. And the solution you're being offered is more of the same. That's the Trojan horse. It always works the same way. A real problem. A generous-sounding promise. A program that makes things worse. Then the failure of that program becomes the argument for the next one. People who lived under communism in Poland learned to recognize the lie and the mask the lie wears. The lie never presents itself as a lie. It presents itself as compassion. In France we are at the end of that road. Debt we can never repay. Young people who can't afford a home. Our best people leaving. And every few years our cities burn. Nobody voted for this. They voted for one more generous promise, fifty years in a row. If you're a Republican, share this with the Democrat in your life. Not to win an argument. To start a conversation. If you're a Democrat, I'm not asking you to switch teams. I'm asking you to look at the pattern. Wherever the state took over, life became unaffordable. Don't fix the failures of government with more government. Stay American. Ask for less state, not more.
I’m French. I want to talk to Americans who are about to vote Democrat. Not to insult you. To warn you. I come from your future. In France we did everything your progressive politicians promise. Free healthcare, free college, generous welfare, strong unions, heavy regulation, high taxes on the rich, a state that takes care of everything. Public spending close to 57% of GDP, one of the highest on the planet. On paper, it’s the dream. Here’s what it looks like from the inside. France hasn’t passed a balanced budget since 1974. Our debt is above 3,300 billion euros. Interest on that debt is becoming one of the biggest items in the national budget. Our hospitals are collapsing despite record funding. Our schools rank lower every year. Young people with degrees can’t afford an apartment in the city they were born in. Our best engineers leave for London, Zurich and San Francisco. And the rich you wanted to tax? They left too, and took the jobs with them. The promise was protection. The result is stagnation. The worst part is that nobody in France voted for decline. Every single step sounded generous, compassionate, reasonable. One more program. One more regulation. One more tax to fund it. Each step alone makes sense. Fifty years of them, and you wake up in a country that can no longer build a nuclear plant on time or keep its streets safe. I love America because it’s the one place on earth where people still believe they can build something from nothing. I came to Silicon Valley as a self-taught kid and it changed my life. That spirit is the most precious thing your country has. Before you vote, ask yourself one question: is the program you’re voting for making America more like America, or more like France? Trust me. You don’t want to be France.
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I wonder… The idea of teams of lawyers authoring a multi-hundred or thousand page contract for, say, a company merger… Does the head attorney read all of it? Hell no. He delegates. Does he read some? Absolutely. Does he care about it? Also, strong yes. IMO “Reading the code” is far too vague to encapsulate what is truly being discussed. It’s not entirely Boolean (always/never). It is… (I hate myself for saying this…) A spectrum. 🤦‍♂️
Replying to @poteto
You're absolutely right! 😅️ Which is why I think that statements such as "there was slop before" are dangerous (not to mention misleading, because it's a false equivalence), and that the implication is that we shouldn't care about the code. Code is a part of the context. Arguably its biggest part. And if it becomes a bloated slop, it's more difficult for the agents to deal with it too. So yeah, we need to steer the agents to write good code, and part of that steering IMO shockingly involves reading some of it 🤷‍♂️️
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Coding benchmarks have focused on writing working code. I wonder if we’ll start seeing ones that can measure maintainability tokens to fix a bug in the same app, written differently… 2nd order metrics are inherently limited, but could be insightful.
Replying to @poteto
i think your POV is potentially biased slightly by the fact that you have access to infinite tokens :) i would measure maintainability by how many tokens are needed to add a new feature or make a change the same product can be written in a clean codebase or a messy one. if the latter makes every future change 10x more expensive to make, that still matters, right?
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This is poignant - what makes “clean code” is changing. Optimizing for human maintainability is rapidly decreasing in value. But also “most of the PRs I land are refactorings” Taking extreme “[everything|nothing] is changing” positions is the true error in current discourse.
it's very interesting how many replies i've gotten about maintainability and clean code being still important. i would argue that that is no longer true and we all need to update our priors on what Good Code really means in 2026. clean code has always come at a cost - performance. indirection and making code readable/understandable for a human is not free, it often comes at the cost of worse performance. we have historically been okay with this because of Moore's Law and the fact that most code is not on the hot path. these principles also came from a time where humans maintained code. it made sense to optimize for humans then, but it makes less sense now when agents are already writing all the code. we will in fact probably discover and come up with new principles: principles of agent friendly architecture (i plan to write more thoughts about this soon)
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Scott Pfister retweeted
⚠️ Warning: Reading this woman’s story could break your heart. Her husband took the children outside. Her brother came with a knife. And her family reportedly defended her killers. This is not a horror movie. This happened in Iran. Her name was Maryam Yarmohammadi. She was only 28 years old. A mother of two children . On October 5, in Qeshm, southern Iran, her husband took their two children out of the house, reportedly to make way for her murder. Then her own brother entered. I cannot believe that I Am even writing this .😔 Her brother came with a knife and stabbed his sister in the neck, breasts, and genitals. He literally, stood over her body, butchered his sister and waited as long as he was certain she was dead, then he took her to the hospital. But the most horrifying part of this story came afterward. Some of Maryam’s own relatives gathered outside the hospital. Not to demand justice for her. Not to mourn her murder. They protested the arrest of her brother and husband. They said death was the least punishment she deserved. They called it HONOR. What kind of honor requires a brother to butcher his sister? What kind of honor turns a husband into an alleged accomplice in the murder of his children’s mother? And what kind of society allows a woman’s life to be treated as family property? Let me tell you why honor killings happen in Iran; Under the laws of the Islamic Republic, misogyny is not just a mindset. It is taught, institutionalized, and protected by law. From childhood, boys are taught that a woman’s body, her hair, her sexuality, and her choices are matters of male honor. In schools, universities, state media, and religious institutions, the message is repeated: A woman belongs to a man. First her father. Then her brother. Then her husband. At the end the strangers in the street called “morality police “. And when a woman dares to disobey, these men think they have the right to punish her. In Iran, a woman get arrested, beaten, and flogged for showing her hair in public. But a man who beheaded his 17-year-old wife and paraded her head through the streets received just over eight years in prison. Eight years. For cutting off a woman’s head. And you wonder why women are being murdered in the name of honor again and again! A woman’s hair is treated as a greater threat than a man holding his sister’s or his wife’s dead body. Now, do you understand why we try to educate some men in 21st century and shout laud that, we are not your honor. We are not your property. We are not your family reputation. Our bodies do not belong to our fathers, brothers, or husbands. Stop killing women in the name of honor. Stop controlling women in the name of religion. Leave women alone. I cannot stop thinking about Maryam’s two children.💔
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Scott Pfister retweeted
Super excited to be interviewing @poteto, live, in ~48 hours on YouTube. We'll be nerding out about skills, high-velocity software factories, and learning SOTA techniques for shipping with agents. This Friday - 9AM PT. Don't miss it! youtube.com/live/MN9dGgmLyso
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I think what infuriated me most about 2024's interpretation of SHOGUN is that it proved people still know how to make very good television. Most of the studios just choose not to.
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You know, I’ve long tried to keep my general opinions to replies, so my main posts could be focused on technology and maybe the occasional rare original thought I had. And when it seemed that technologists in my industry were always punished for having the “wrong” opinions publicly, but only when they were wrong on one side of the spectrum, I thought it would be wiser to simply remain silent, for the good of my career and my family. But my family’s gone, grown, and I’ve achieved elder statesmen age so I may just pontificate a bit more directly. If you disagree, as you are more than welcome to do so, I encourage your discussion! If you just hate anyone who disagrees with you and think your view is the only righteous one in the world and everyone else is just a fascist racist Zionist Islamophobic sexist transphobic misogynistic bigot, then do let me know so I can give your comments all the attention they duly deserve. Thank you for your attention to this matter 😉
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Scott Pfister retweeted
Replying to @BarackObama
FYI - here's what venture Capitalist/innovator Marc Andreeson was told when discussing AI startups with Obama/Biden admin insiders:
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Headline: 20% of code at Anthropic is still written by hand!
At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale: claude.com/blog/agentic-codi…
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(Yes, this is tongue-in-cheek - there are clearly nuances to this stat)
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