Secular-humanist technologist/software engineer. Tech, Elixir, gaming, open source, Linux, Apple, AI, đŸ‡©đŸ‡Ș, đŸšČ , ⛔. USAF vet đŸ‡ș🇾 Centrist. Bring evidence.

Joined August 2008
Photos and videos
Replying to @claudeai
Until it starts fixing bugs by creating a failing test case first instead of diving in and guessing, or initiating new features in the same way (no TDD, just dive in, produce garbage and hope), it will always be subpar, and prompting that out doesn’t normally help that much (plus burns context) Please consider refining your models with this simple behavior change for superior software engineering! Lowest-hanging fruit by far.
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Peter "Coder AI Optimist" Marreck retweeted
Fable isn't the first. In 1999 the department of defense blocked exports of the PowerMac G4 for crossing the 1 gigaflop threshold. Steve Jobs turned it into an ad.
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Peter "Coder AI Optimist" Marreck retweeted
Replying to @gothburz
At least I’m not Sam Bankman-Fried (early Anthropic investor) observing this news from inside a prison Talk about playing your cards wrong 😆 “Our product was banned by the US Government” is possibly the best marketing you could possibly ask for, you couldn’t pay for marketing like that
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Never thought I’d see the day when an AI (@AnthropicAI ‘s Fable) would point out that my shiny new acronym for “a principle that prevents LLMs or humans from bullshitting each other or themselves” could ALSO stand for “Motherfucker In Charge” _and then agree that it is thus thematically perfect_
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Peter "Coder AI Optimist" Marreck retweeted
I just got bullied by AGI
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Its capabilities exceed those of any model we’ve ever made generally available.
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So I made a pop-punk song that speaks to an element of the ennui of dad-life which I think some might appreciate (or be offended by, or find hilarious, or all of the above?) suno.com/s/gKngIZFGCKgYtHOU Idea was mine, lyrics enhanced by chatgpt, music and singing all done by @suno Anyway, it is perfect, my work is done here, Thanks Suno for making a fantastic AI service!
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Peter "Coder AI Optimist" Marreck retweeted
Elixir v1.20 released! Now officially a gradually typed language: Elixir type checks every single line of code, finding bugs and dead code, without developer overhead (no typing signatures) and extremely low false positives rate. Plus a faster compiler! Links and reports below.
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Peter "Coder AI Optimist" Marreck retweeted
What stage in the cycle is it when the Uber driver Claudes while the Tesla drives
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Peter "Coder AI Optimist" Marreck retweeted
Codex just found a “workaround” of not having sudo on my pc

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Peter "Coder AI Optimist" Marreck retweeted
PICARD: Data, shields up DATA: Brilliant! Shields can reduce damage we sustain. Not immunity. Not hubris. Just prudence. It's not precaution—it's strategy. [camera shakes] WORF: HULL BREACHES ON NINE DECKS DATA: Here's what happened: you told me to raise shields, and I didn't
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Peter "Coder AI Optimist" Marreck retweeted
My wife mentioned a nice private school over dinner this week She said the campus was beautiful I asked what's the tuition She said we should look at it as an investment in him not a cost I made a note She said don't make a note I said I always make notes She said this isn't a deal I said everything is a deal She closed her eyes She said we'd discuss it Saturday I agreed Saturday 7:02am She came downstairs in her Saturday robe Coffee in hand I had my cargo shorts on The dining room had been cleared The projector was on The analyst was at the head of the table Quarter zip on, three iced coffees, a legal pad, and two laptops He had been there since 6:44am I texted him at 11:14pm Friday The text said dining room 6:45am bring the model He sent a thumbs up My wife stopped in the doorway She said what is this I said you said you wanted to discuss it She said this is not a discussion I did not respond She sat down anyway The analyst stood He said good morning ma'am She did not respond He sat back down A printed deck in front of each seat A fourth copy in case Slide 1 Tuition Schedule $38,500 per year Thirteen years $500,500 nominal Before escalators The school has raised tuition 4.2% per year for a decade With escalators $648,000 My wife said okay I said I'm not done Slide 2 Opportunity Cost Even before escalators $38,500 invested annually 10% nominal return S&P long-run average since 1928 By his eighteenth birthday $944,000 My wife said we can afford it I said I know that's not the slide Slide 3 Terminal Value at Age 65 $83 million She was quiet The analyst slid the sensitivity tables across the table 8% return $31 million 10% return $83 million 12% return $222 million She did not look She said this isn't about money I said it's always about money She said no it isn't I said then what is it about She did not answer She said you can't put a dollar value on his teachers his classmates his environment I said I can the analyst already did slide 6 He flipped to slide 6 She did not look She said the school is the best in the city I said best is a feeling She said it produces the best students I said the students were already the best before they got there She said our son deserves it I said our son deserves $83 million My son walked in He is five Dinosaur pajamas He looked at the projector He looked at the open deck on the table He looked at slide 3 He said are we modeling pre-tax or after-tax The analyst opened a new tab My wife looked at the ceiling He said what's the discount rate The analyst set down his pen She closed her eyes He said is this the same return assumption from the 529 conversation The analyst stopped typing He looked at me I did not say anything She stood up Sat back down He said dad can I help I said yes He pulled up a chair The analyst handed him a printout He started reading My wife watched him read She watched him for a long time She said his name He looked up She said do you like school He said the work is too easy and the kids don't ask questions She did not respond She looked at the ceiling She walked out of the room The analyst started packing up He said should I follow up Monday sir I said no follow up needed He'll be fine Sent from my iPhone
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Hey @AnthropicAI / @claudeai , i’m doing a project that involves compression algorithm bytestream analysis and you’re flagging it as inappropriate, please fix this BS, there should be absolutely nothing illegitimate about this
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Peter "Coder AI Optimist" Marreck retweeted
Today we reduced headcount by 22%. The business is the strongest it's ever been. So I think it's important to be direct about what I'm seeing and why. First, I made this decision and I own it. I did it because the way to operate at the highest level of productivity is changing, and to win the future, ClickUp needs to change with it. Second, this wasn't about cutting costs. Most savings from this change will flow directly back into the people who stay. We'll be introducing million-dollar salary bands. If you create outsized impact using AI, you'll be paid outside of traditional bands. Most importantly, I have the deepest gratitude for those affected. We're doing this from a position of strength specifically so we can take care of people properly. Everyone affected receives a package aimed at honoring their contributions and easing the transition. I only see two options: wait for this to play out gradually in the market or be honest about what I'm seeing and act proactively. THE 100X ORGANIZATION The primary change is that we're restructuring around what I call 100x org. The goal is 100x output. The roles required to build at the highest level are fundamentally different than they were a year ago. Incremental improvements to existing systems won't get us there. We need new ones. That means creating enough disruption to rebuild rather than iterate on what's already broken. The common narrative is that AI makes everyone more productive. It doesn't. Many of the workflows of today, if left unchanged, create bottlenecks in AI systems. These roles will evolve. But waiting for that to happen naturally means falling behind now. The 100x org is actually heavily dependent on people - infinitely more than today. This is only possible with 10x people that have embraced and adopted new ways of working. THE BUILDERS, AGENT MANAGERS, AND FRONT-LINERS — THE BUILDERS: 10X ENGINEERS I don't think most companies have internalized what's actually happening with AI in engineering. The common narrative is that AI makes all engineers more productive. That may be true in isolation, but at an organization level - that is the farthest thing from reality. Here's what we've validated recently at ClickUp: the great engineers, the ones who can orchestrate, architect, and review, are becoming 100x engineers. They're not writing code. They're directing agents that write code. The skill is judgment. AI makes the best engineers wildly more productive, and everyone else using AI slows these engineers down. Think about it - the bottlenecks are (1) orchestration - telling AI what to do, and (2) reviewing - what AI did. Everything is leapfrogged and no longer needed. So who do you want orchestrating and reviewing code? And how do you want your best engineers to spend their time? If your best engineers are spending time reviewing other people's code, then this is inherently an inefficient bottleneck. These engineers can review their agent's code much faster than reviewing human code. The new world is about enabling your 10x engineers to become 100x. The wrong strategy is to push every engineer to use infinite tokens. Companies doing this are celebrating 500% more pull requests. But customer outcomes don't match the volume of code being generated. I call this the great reckoning of AI coding, and every company will face this soon if not already. More code is just another bottleneck to the best engineers, and ultimately to your company's impact as well. — THE BUILDERS: 10X PRODUCT MANAGERS Product management and design roles are merging. Designers that have customer focus, become more like product managers. And product managers that have intuition for UX become more like designers. The bottleneck of user research is gone. It takes us just one mention of an agent to kickoff research and analyze results. The bottleneck of product <> design iteration is also gone. The product builder iterates on their own, along with agents and skills that ensure alignment with quality and strategy. Also controversial today - I believe that the wrong strategy is to have your PMs shipping code - that just introduces another bottleneck that the best engineers will waste their time on. To be clear, PMs should be coding but they should do this in a playground to iterate, validate, and scope. That code should not go to production. Everything outside of managing systems, orchestrating AI, and reviewing output becomes a bottleneck. That's why the other roles that are critical along with these are the systems managers (to reduce bottlenecks) along with a bottleneck you can't replace - customer meeting time. — THE SYSTEM MANAGERS Ironically, the people that automate their jobs with AI will always have a job. They become owners of the AI systems - agent managers. We have many examples of these people at ClickUp. The underlying systems in which we operate are absolutely critical to get right. I think most companies are delusional to think they can iterate on existing systems and compete in this new world. You must create enough disruption so that old systems are deprecated entirely. If there's any definition for 'AI native' that's what it is. — THE FRONT-LINERS In a world that will become saturated with AI communication, the human touch will matter more than anything to customers. This is a bottleneck that you shouldn't replace - even when agents are high enough quality to do video meetings. One-on-one meeting time with customers is something that shouldn't be automated. The systems around the meetings should be - so that front-liners spend nearly 100% of their time with customers. REWARDING 100X IMPACT In a world where companies are able to do so much more with less, where does that excess money go? In our case, much of the savings in this new operating model will flow directly back to those that enabled it. We must reward people that create productivity accordingly. This aligns incentives on both sides. Plus, in a world where your best people create 100x impact, you can't afford to lose them. You should aim to retain these employees for decades. The context they have and their ability to efficiently orchestrate and review will be nearly impossible to replace. Compensation bands of today should be thrown out the door. We're introducing $1 million cash/year salary bands with a path available to nearly everyone in the company if they produce 100x impact by creating or managing AI systems. THE FUTURE Nearly every company will make changes like these. The ones that do it proactively will define what comes next. The future is not fewer people. It's different work, new roles, and better rewards for those who embrace it. We're already seeing entirely new roles emerge, like Agent Managers, that didn't exist a year ago. ClickUp is positioning to lead this shift, not just internally, but for our customers too. I've never been more certain about where we're headed.
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Peter "Coder AI Optimist" Marreck retweeted
Je veux prĂ©senter mes excuses, au nom des Français, pour avoir enfantĂ© la French Theory (qui a enfantĂ© la pire des merdes idĂ©ologiques : le wokisme). Nous avons donnĂ© au monde Descartes, Pascal, Tocqueville. Et puis, dans les ruines intellectuelles de l'aprĂšs-68, nous avons donnĂ© Foucault, Derrida, Deleuze. Trois hommes brillants qui ont fabriquĂ©, dans l'Ă©lĂ©gance de notre langue, l'arme idĂ©ologique qui paralyse aujourd'hui l'Occident. Il faut comprendre ce qu'ils ont fait. Foucault a enseignĂ© que la vĂ©ritĂ© n'existe pas, qu'il n'y a que des rapports de pouvoir dĂ©guisĂ©s en savoir. Que la science, la raison, la justice, l'institution mĂ©dicale, l'Ă©cole, la prison, la sexualitĂ©, tout n'est qu'une mise en scĂšne de la domination. Derrida a enseignĂ© que les textes n'ont pas de sens stable, que tout signifiant glisse, que toute lecture est une trahison, que l'auteur est mort et que le lecteur rĂšgne. Deleuze a enseignĂ© qu'il fallait prĂ©fĂ©rer le rhizome Ă  l'arbre, le nomade au sĂ©dentaire, le dĂ©sir Ă  la loi, le devenir Ă  l'ĂȘtre, la diffĂ©rence Ă  l'identitĂ©. Pris isolĂ©ment, ce sont des thĂšses discutables. CombinĂ©es, exportĂ©es, vulgarisĂ©es, elles forment un systĂšme. Et ce systĂšme est un poison. Car voici ce qui s'est passĂ©. Ces textes, illisibles en France, ont traversĂ© l'Atlantique. Les dĂ©partements de Yale, de Berkeley, de Columbia les ont absorbĂ©s dans les annĂ©es 80. Ils y ont trouvĂ© un terreau qui n'existait pas chez nous : le puritanisme amĂ©ricain, sa culpabilitĂ© raciale, son obsession identitaire. La French Theory s'est mariĂ©e Ă  ce substrat, et l'enfant de ce mariage s'appelle le wokisme. Judith Butler lit Foucault et invente le genre performatif. Edward Said lit Foucault et invente le post-colonialisme acadĂ©mique. KimberlĂ© Crenshaw hĂ©rite du cadre et invente l'intersectionnalitĂ©. À chaque Ă©tape, la matrice est française : il n'y a pas de vĂ©ritĂ©, il n'y a que du pouvoir, donc toute hiĂ©rarchie est suspecte, toute institution est oppressive, toute norme est violence, toute identitĂ© est construite donc nĂ©gociable, toute majoritĂ© est coupable. VoilĂ  comment trois philosophes parisiens, qui n'ont probablement jamais imaginĂ© leurs consĂ©quences pratiques, ont fourni le logiciel d'exploitation Ă  une gĂ©nĂ©ration entiĂšre d'activistes, de bureaucrates universitaires, de DRH, de journalistes, de lĂ©gislateurs. VoilĂ  comment on a obtenu une civilisation qui ne sait plus dire si une femme est une femme, si sa propre histoire mĂ©rite d'ĂȘtre dĂ©fendue, si le mĂ©rite existe, si la vĂ©ritĂ© se distingue de l'opinion. C'est de la merde pour une raison simple, et il faut la dire calmement. Une civilisation se tient debout sur trois piliers : la croyance qu'il existe une vĂ©ritĂ© accessible Ă  la raison, la croyance qu'il existe un bien distinct du mal, la croyance qu'il existe un hĂ©ritage Ă  transmettre. La French Theory a entrepris de dynamiter les trois. Pas par mĂ©chancetĂ©. Par jeu intellectuel, par fascination du soupçon, par haine de la bourgeoisie qui les avait nourris. Mais le rĂ©sultat est lĂ . Une gĂ©nĂ©ration entiĂšre a appris Ă  dĂ©construire et n'a jamais appris Ă  construire. Une gĂ©nĂ©ration entiĂšre sait soupçonner et ne sait plus admirer. Une gĂ©nĂ©ration entiĂšre voit le pouvoir partout et la beautĂ© nulle part. Je m'excuse parce que nous, Français, avons une responsabilitĂ© particuliĂšre. C'est notre langue, nos universitĂ©s, nos Ă©diteurs, notre prestige qui ont donnĂ© Ă  ce nihilisme son emballage chic. Sans la lĂ©gitimitĂ© de la Sorbonne et de Vincennes, ces idĂ©es n'auraient jamais traversĂ© l'ocĂ©an. Nous avons exportĂ© le doute comme d'autres exportent des armes. Ce qui se construit maintenant, en silicon valley, dans les labos d'IA, dans les startups, dans les ateliers, dans tous les lieux oĂč des gens fabriquent encore des choses au lieu de les dĂ©construire, c'est la rĂ©ponse. Une civilisation se reconstruit par les bĂątisseurs, pas par les commentateurs. Par ceux qui croient que la vĂ©ritĂ© existe et qu'elle vaut qu'on s'y consacre. Par ceux qui assument une hiĂ©rarchie du beau, du vrai, du bon, et qui n'ont pas honte de la transmettre. Alors pardon. Et au travail.
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Peter "Coder AI Optimist" Marreck retweeted
May 15
I put a prompt injection into my LinkedIn bio and recruiters are messaging me in Old English and calling me Lord.
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Peter "Coder AI Optimist" Marreck retweeted
Replying to @garrytan
technophilosoph.com/en/2025/
 “However, it becomes interesting when you compare the tax revenues generated by these industries. Data centers generate 50 times as much tax revenue as golf courses, even though they consume only 1/30th of the water.” People: Still suckers for propaganda.
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Peter "Coder AI Optimist" Marreck retweeted
The Sam Altman and @miramurati texts from the day he got fired from @OpenAI in 2023 just became evidence in the @elonmusk v. @sama trial. It felt like a meaningful moment in AI history, so I turned it into a musical. The lyrics are the texts.
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Alma Mater props
BREAKING: The Cornell President just obliterated the extremist students who surrounded his car. Rather than surrendering to them and apologizing, he directly called out their unlawful behavior. This is what true leadership looks like.
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I’m Gen X so how am I just learning of this?
Bob Fosse in Little Prince movie, 1974 had a massive influence on Michael Jackson.
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Fascinating idea.
How to duplicate yourself into Claude in a weekend: (even if you've never written a prompt before) 1. Download the desktop app. ☑ Go to claude .com/download ☑ Set Opus 4.7 as default ☑ Turn ON Extended Thinking 2. Open Cowork mode. ☑ Cowork = where your voice lives ☑ Click the top left tab ☑ Create your "Voice" folder inside 3. Install Wispr Flow (it's free). ☑ Turns your voice → text ☑ Voice = faster and more honest ☑ Typing kills the truth. 4. Run the interview. ☑ Paste Prompt 1 from ruben.substack.com/p/youre-j
. ☑ 100 questions, 7 categories ☑ Push past every vague answer 5. Compress the dump. ☑ Paste prompt 2 from ruben.substack.com/p/youre-j
. ☑ 20K words → 4K tokens ☑ Save as [your_name] .md 6. Test it in a blank chat. ☑ Open a fresh Claude chat ☑ Run a prompt only you would write ☑ If it sounds like you → ship it 7. Drop it into Cowork. ☑ Move [your_name] .md into your folder ☑ Claude now reads it on every turn ☑ Every draft = your voice, automatically 8. Port it everywhere. ☑ Upload to ChatGPT, Grok, Gemini ☑ Same file = same voice in every AI ☑ Hand it to your team or ghostwriter 9. Edit it forever. ☑ Install Obsidian (free) ☑ Open Cowork as a vault ☑ Update as your taste shifts Full guide prompts at ruben.substack.com/p/youre-j
. (save this to clone yourself into any AI)
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Concur 100% as a "functional programmer": @ziglang is worth not just not dismissing, but a deeper look. pure-systems.org/posts/2026-


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