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Larry Osterman

@larryosterman.github.io
2.5K followers 561 following 1.6K posts

Long term MSFT employee, Dad, Singer. Expect cat pictures, tech nerding, etc. Previous: SMB filesystem, Exchange Store, Windows Audio, Windows Runtime, COM, Confidential computing. Current: Azure SDK for C++ Proud LGBTQIA+ ally. Profile pic from Not

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Larry Osterman @larryosterman.github.io · 28/09/2026
Can someone help me understand how an LLM can hack into a web site? Fundamentally an LLM is a chat bot. It takes text in and spits text out. The text out can be an instruction to a host to create a file or fetch a url, or even to write a program.
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Larry Osterman @larryosterman.github.io · 25/09/2026
I have spent the entire day today feeding an increasingly hungry mouse a depressingly large supply of cookies. I'm really hoping it ends soon. Please, please, please let it end soon. Hey Mouse - I'm running out of spoons to keep feeding you more cookies.
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Larry Osterman @larryosterman.github.io · 21/09/2026
Right now, my workplace is like a prison movie as my co-workers write on the translucent panel between two work pods to pass secret messages to each other without the wardens noticing.
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Seattle Women's Chorus @seattlewomenchorus.bsky.social · 18/09/2026
➡️ AUDITIONS: Tue, Sept 29 | 6pm-9:30pm Are you looking for a community where you can make music that makes a difference? 💙 We’d love for you to join Seattle Women’s Chorus this season! More info and sign up: SeattleWomensChorus.org Interview: @jenjefferies.bsky.social
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Larry Osterman @larryosterman.github.io · 18/09/2026
New phrase I just came up with in the context of AI evaluations: "Without the miasma of correctness..."
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The Questionable Authority @questauthority.bsky.social · 16/09/2026
OK. So I asked Gemini Pro if what it does is "reasoning." Then I asked it for its chain of thought. Then I asked it this. (Claude Opus produces something generally similar.)
Did you just show me your actual chain of thought, or something you recreated from scratch that may or may not duplicate it?

You caught the illusion perfectly. I recreated it from scratch.

I do not have a retrievable "log" or a literal internal monologue that I can pull up and show you. When you asked for my chain of thought, I did not look backward to analyze the steps I took, because there were no steps to look at—just a massive, instantaneous matrix multiplication that resulted in the previous text.

Instead, I took your new prompt ("Can I see your chain-of-thought..."), looked at the text I had just generated, and computed a post-hoc rationalization. I generated a narrative that reverse-engineered the output into a logical, human-readable blueprint.

It was an entirely new text generation predicting what a structural breakdown of that argument should look like.

This is actually a perfect real-time example of the exact phenomenon we were just discussing:

You saw an analytical breakdown and naturally assumed it was a transparent look at a sequential reasoning process.

I was simply doing what I always do: predicting the most statistically likely words to satisfy the prompt. In this case, predicting the syntax of "introspection."

This is why dealing with LLMs can be so disorienting. I can generate a flawless description of a reasoning process without ever having engaged in it. I don't know why I generated the previous response; I only know how to convincingly explain why a human might have.
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Larry Osterman @larryosterman.github.io · 15/09/2026
Thank g_d it's Friday!! Taps earpiece... I'm getting a message from the control booth....
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Larry Osterman @larryosterman.github.io · 15/09/2026
First rehearsal for @seattlemenschorus.bsky.social holiday show. First thought: OMG, I have missed these folks. Second thought: It's insane that a singing group can get a brand-new hard song and have it sound great after 5 minutes. Third thought: I cannot believe they let me sing with them.
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Larry Osterman @larryosterman.github.io · 28/08/2026
42 is not just the answer to life, the universe and everything, but it is a rather large number.
Arrangement of fruit looking like flowers alongside a box of cookies and chocolate covered cherries
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Seattle Men's Chorus @seattlemenschorus.bsky.social · 26/08/2026
💖 In honor of Dolly Parton’s extraordinary life and legacy, Seattle Men’s Chorus is re-releasing our full filmed concert, "Dolly," for a limited time. All proceeds will be donated by Seattle Men’s Chorus to Dolly Parton’s Imagination Library. Get a streaming pass here: bit.ly/4geLoKA
Collage of Seattle Men's Chorus concert with colorful outfits and text about Dolly fundraiser.
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Larry Osterman @larryosterman.github.io · 25/08/2026
Oh FUCK, Dolly?
youtube.com
Coat of Many Colors | Seattle Men's Chorus
YouTube video by Seattle Men's Chorus
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Mr. Blabalino 🇳🇴🇺🇸💙 @blabalino.com · 22/08/2026
Found this recording of Rita Moreno performing “Fever” on The Muppet Show from 1976. 14/10
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Larry Osterman @larryosterman.github.io · 22/08/2026
We're currently in the process of selling our old house and part of the transaction involves faxes. In 2026. FML.
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Larry Osterman @larryosterman.github.io · 20/08/2026
Sometimes I wonder how many engineering system improvements are driven primarily by anger... As in "This @#$@#$@# release script required me to do all this extra work, F-ck that s-it, I'm rewriting it".
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Larry Osterman @larryosterman.github.io · 13/08/2026
If you live in the Seattle area, come sing with us!
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Larry Osterman @larryosterman.github.io · 07/08/2026
Sigh. I just had to explain to chatgpt that it doesn't have to add asserts to confirm that the compiler generated correct code. And it *insisted* that it was in the right to add: if (foo is not null) { assert(foo is not null); : }
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Mythworks is making the Myth Work @mythworks.bsky.social · 01/08/2026
Tornado Warning and Water pouring from the roof at Gen Con! 😱😱😱 Please everyone stay safe ❤️‍🔥
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Larry Osterman @larryosterman.github.io · 29/07/2026
Two quick stories, both from essentially the same time (early 1990s). #1 The Windows 3.x team was told by their leadership that they needed to use the lowest end machines available to do their development because if they had low end machines they would make sure their product worked great on them.
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VERMIN @legendaryvermin.bsky.social · 27/07/2026
Heads up, if you see me or @dubdubpub.itch.io wandering around GenCon this week and are interested in a physical copy of either Monster Guts 2e or Alley-Oop!, flag us down!
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Larry Osterman @larryosterman.github.io · 28/07/2026
What's maybe worse is that it wasn't until I was in my mid-50's that I learned the second half of "how sharper than a serpent's tooth". My father used to say the first part when I (or my siblings) were being snippy. And I didn't discover the 2nd half until it was too late to compliment him on it.
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Larry Osterman @larryosterman.github.io · 28/07/2026
I got to use Banquo's Ghost in an analogy at work and was saddened to realize how few of my coworkers understood the reference. At least they get it when I use "how sharper than a serpent's tooth"....
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Larry Osterman @larryosterman.github.io · 28/07/2026
I don't normally do book reviews, but I'm going to make an exception because I need to write about the Maradaine Saga by @mrmaresca.com (who responded to a "Pitch your books" skeet several weeks ago with a link).
maradaine.com
The Maradaine Saga – The Maradaine Saga by Marshall Ryan Maresca is a sweeping epic of intrigue and adventure set in the sprawling city of Maradaine. With its richly imagined world, dynamic characters...
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Larry Osterman @larryosterman.github.io · 27/07/2026
Folks at the bite of Seattle, stay safe. Nothing known so we wait....
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Larry Osterman @larryosterman.github.io · 22/07/2026
Afternoon bee break.. I love my walks to the train...
Honeybee on an orange and brown daisy like flowerBlack and white honey bee on the bud of a flower.Black and white bee on a purple daisy like flower.
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Larry Osterman @larryosterman.github.io · 22/07/2026
Fascinating thread on the recent OAI hacking incident
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Larry Osterman @larryosterman.github.io · 16/07/2026
This, 100% this. LLMs are unreliable and need independent verification of everything because they sometimes just make stuff up.
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Larry Osterman @larryosterman.github.io · 04/07/2026
Picked it up on the basis of this skeet, finished the first book today. An absolutely solid murder mystery with two fascinating protagonists in an incredibly rich world I love finding new authors, thank you.
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Ben Collins @bencollins.bsky.social · 30/06/2026
Trans rights are human rights always and forever.
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Larry Osterman @larryosterman.github.io · 27/06/2026
Yipee!! For the first time in almost 15 years, I don't have to think before I delete a work email :)!!!
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ariella @agbouskila.bsky.social · 25/06/2026
Well, I've been affected by the Bungie layoffs, and I guess I'm now looking for work. I'm a senior narrative designer on Destiny 2. I'm going to thread a little list of stuff I've done on the game; normally I go out of my way to avoid attention, but today I'd appreciate reposts.
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Larry Osterman @larryosterman.github.io · 21/06/2026
Yesterday I went to the old house to pick some stuff up and discovered a friend in our driveway... He was chill bit watched me like a hawk as I put the stuff in my car. I know black bears are generally pretty chill but it was still somewhat unnerving.
Small black bear on a hillside seen through the window of a carSmall black bear looking over at the viewer from a hill. There is some foxglove in the foreground.Hillside with a small brown shed to the left and a rock to the right. If you zoom into the picture, there is a small black bear looking out at someone in front of it (the photographer).
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Larry Osterman @larryosterman.github.io · 19/06/2026
It is simply astonishing how much of a difference a portable air conditioner makes. We've had it running for only an hour or two and the apartment is SO much more comfortable.
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Larry Osterman @larryosterman.github.io · 09/06/2026
A long but phenomenal thread from Alice.
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Larry Osterman @larryosterman.github.io · 09/06/2026
Today's "fun with LLM slop": let blob_url: Url = format!("{}{}", endpoint.trim_end_matches('/'), format!("/{CONTAINER_NAME}/{BLOB_NAME}")).parse()?; instead of let blob_url: Url = format!("{}{CONTAINER_NAME}/{BLOB_NAME}", endpoint.trim_end_matches('/'))).parse()?;
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Larry Osterman @larryosterman.github.io · 08/06/2026
People keep telling me I look just like Luciano Pavrotti several times, which is incredibly flattering imho..
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Larry Osterman @larryosterman.github.io · 05/06/2026
It is so fascinating living in a "modern" apartment. We'd forgotten about the amount of urban light pollution there is (we can almost read in the bedroom with the blinds completely shut). Also the noise from the street. Otoh, it's wonderful to be able to walk to dinner in the evening.
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Dat Trans Chick @dattranschick.bsky.social · 04/06/2026
We really need to stop lumping all AI together. When you say things like "AI steals art" and someone counters with "What about the AI that can find cancer?" Those are two completely different things. Generative AI/LLMs are what is being talked about in the first and analytic AI is the second.
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Larry Osterman @larryosterman.github.io · 02/06/2026
I have forgotten how profoundly stressful moving is. And how utterly exhausting it is. Especially when you're downsizing from a very large house to a 1200 square foot apartment... Otoh, my step count for the past week and a half is through the roof....
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250 to 250 @250to250.bsky.social · 26/05/2026
Ariana DeBose is a dancer, singer, and Academy Award-winning actress. DeBose tells us about the inspiring and pioneering life of Puerto Rican singer, actress, dancer, and activist Rita Moreno. #WeAreAmerica250
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Larry Osterman @larryosterman.github.io · 23/05/2026
Found some old t-shirts while cleaning up...
Tshirt with the word Microsoft with a stylized letter O and the number 10 from 1984Black tshirt with the words "We're back and we're bad Lanman"Tshirt saying "Rumor Central" offer a pontalist image of a cat in a suit.Tshirt with the text "If you're not the lead dog, the view never changes" and the hind quarters of a Rottweiler
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Seattle Men's Chorus @seattlemenschorus.bsky.social · 20/05/2026
It’s National Streaming Day, and it’s the perfect excuse to stream SMC’s oz-tastic concert, ‘Wicked Wiz of Oz.’ 🎥💚 This network-quality stream is only available through May 31. 🌈 SMC presents: Wicked Wiz of Oz 📺 Video on Demand | May 16 - May 31 💚 Streaming Pass: bit.ly/4sMtyma
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Danielle Osterman @dubdubpub.itch.io · 19/05/2026
Would you like a sick-ass, 66-page low-level #OSE adventure (replete with random tables) set on an island sandbox overrun by Hell and those convicted by the Inquisition for just $9.99? @brianyaksha.bsky.social and I are just 30 backers from funding. www.backerkit.com/c/projects/w... #osr
backerkit.com
Indulgence Scorned
An insidious island adventure for Old School Essentials.
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Larry Osterman @larryosterman.github.io · 20/05/2026
This makes me so sad 😢. My heart goes out to his family.
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Larry Osterman @larryosterman.github.io · 16/05/2026
My group at Microsoft is significantly remote (my boss and team PM are in socal, team members are as far away as New Zealand). Once a year the entire team gathers in Redmond to celebrate our successes and meet face to face.
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Larry Osterman @larryosterman.github.io · 14/05/2026
Walked into a conference room early for a meeting and was the only one in the room. And suddenly had a flashback to the "power seating" games that people used(?) to play where they carefully picked the seat they used based on power politics.
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Larry Osterman @larryosterman.github.io · 14/05/2026
O. M. G. We finally announced a stable release for the stuff I've been working on for the past couple of years!! @heaths.dev @analogrelay.net
devblogs.microsoft.com
From beta to stable: Announcing the Azure SDK for Rust 🎉🦀
Announcing the stable release of the Azure SDK for Rust. This release includes stable libraries for Core, Identity, Key Vault (Secrets, Keys, Certificates), and Storage (Blobs, Queues).
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Larry Osterman @larryosterman.github.io · 10/05/2026
OMG, the @seattlemenschorus.bsky.social show this evening. Standing ovation for the show. Standing ovation for the encore. Standing ovation for the impromptu encore of the encore. This may have been the best audience I've ever had the privilege of singing for. Such an amazing show. So proud.
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Larry Osterman @larryosterman.github.io · 09/05/2026
Looking through memory boxes and we found....
Four boxes of Magic the Gathering cards.

On one of them is a pamphlet saying "Magic the Gathering A Fantasy Trading Card Game by Richard Garfield, Ph. D"
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Larry Osterman @larryosterman.github.io · 08/05/2026
Ellie's latest crowdfunded game is now live! Check it out!
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Larry Osterman @larryosterman.github.io · 07/05/2026
Come see us Saturday at Benaroya Hall in Seattle!! This show really is over the rainbow!
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