Chris Luttrell

Solutions Architect, Data Architect, Database Architect, Agile Enthusiast.
blue dot in a red sea

[Andy Beshear @AndyBeshearKY]

Democrats can win in hard places – I've proven that. And the great state of Iowa is going to prove it again come November. Let's flip the Hawkeye State and make life better for Iowans.

[Acyn @Acyn]

Buttigieg: If everything was going just fine in this country, we wouldn’t be here. All of that is what led to all of this which means we cannot just be aiming to go back. Everything in our economy and political structure needs to be reconsidered.

[Bill Madden @maddenifico]

No truer words...

[Marco Foster @MarcoFoster_]

“It’s time to wake the fuck up”

Neil deGrasse Tyson: “Half of my fellow graduate students when I was getting my PhD were foreign nationals. Do you realize one third of all the Nobel Prizes in sciences won by Americans were won by immigrants to America? If you’re gonna trail the world in practically everything, including your economy, it’s time to wake the fuck up”

[Acyn @Acyn]

Talarico: Here's what real men don't do. They don't lie and cheat their way through life. They don't sell their soul to the highest bidder. Real men serve others, weak men serve themselves. So I welcome this debate. I don't think Paxton or Cruz are in a position to tell anyone what a real man is.

[Judy Graves @JudyGra35816777]

With profound sorrow & deep respect, we honor the life and legacy of Lawrence N. Brooks, who passed away at the remarkable age of 112. As the oldest living ‘American World War II Veteran’ at the time of his passing, represents one of the final living links to this generation.

[Eric Alper 🎧 @ThatEricAlper]

Charles Schulz was so good.

[Taelin @VictorTaelin]

this is my personal singularity moment

this post may sound like a paid ad. I only wish. I'm concerned, more so than happy. the world is changing, and, among the scenarios where AI goes terribly wrong, inequality is the most realistic, yet, the one Anthropic seems to be the least concerned about. I'm glad OpenAI is taking the opposite stance: *personal AGI for everyone*. I think this is a commendable position in the times we live. but who am I in the queue of the bread?

anyway, Fable is here, so I'll just report my first-hour experience

first of all, all my pet prompts are solved.
→ λ-calculus puzzles
→ bug questions
→ one-shot apps
all are trivial to it.

I don't have anything harder other than my
ongoing work

so, in the last several days, I've been toying with HVM5, a new interaction net evaluator with a faster loop.

after writing the first version, I left 32 GPT-5 agents working for ~20 hours each. this resulted in up to 2x speedups, but the file size increased by 2-fold and quality decreased significantly.

I then simplified the whole thing into an even simpler core, and left Opus 4.8 and GPT 5.5 optimizing it for 8 hours. Opus got a legit 6% - 34% speedup in most benches. GPT got better results, but, sadly, an unusable file.

I then asked Fable to optimize it.

2 hours later, it landed a 1770% speedup in one case, 100%+ in other 4, and 22% in average. yes, in 2 hours it outperformed me, opus 4.8 and a swarm of gpt 5.5 agents, by one order of magnitude.

that could not possibly be legit. "it must be hardcoding the benchmarks" (GPT trauma). so I read its explanation and what it did was, indeed, the most high impact optimization one could try first. seems like HVM5 was wasting a lot of time garbage-collecting unused branches of pattern-match nodes. I had optimized that for static mats, but not for dynamic mats. skill issue. Fable figured how to do it for these, resulting in a massive speedup in some benches

but wait, is that *correct*? I'm not sure yet, it is credible, but this is the kind of thing that is very easy to get wrong on interaction nets. the problem is, when I was ready to start auditing Fable's solution so I could tell whether it was buggy or legit, it interrupted me to tell me it had found a massive bug on the code *I* had written.

... wait, what?

so... for garbage collection purposes, I stored a bit on lambda term pointers that meant "the variable bound by this lambda has been freed, so, its lambda must free whatever argument it is applied to". that's fine. yet, on duplicator nodes, I also used the same bit to mean "one of the duplicated variables was freed, so, treat this dup as a passthrough no-op". so, if a lambda entered a duplicator, it would mistake the lambda's collection bit for its own, resulting in corrupted interaction!

that's a mouthful, why I'm writing this?

just so you can appreciate the sheer absurdity of what just happened. I didn't ask it to find bugs. I asked it for an optimization. and even if I did ask it to find bugs, this bug is so astonishingly subtle and specific, identifying it takes mastering the domain to an extent that it beyond even me. I'd easily need hours or days to fix it, *if* I ever came across it. chances are it would just go unnoticed. and Fable found it and fixed it like it was nothing, while it was busy adding a 17x speedup to a file that neither I, nor Opus 4.8, nor a fleet of GPT 5.5 managed to barely make 2x faster.

oh and there is also another tab where it is also ripping through Bend's codebase and finishing everything I had to do

I don't know what to say anymore

this isn't about Anthropic or OpenAI, this is about our collective future as a species. the world is changing, and we need to be aware of it, and discuss how to handle this change.

receipt below . . .

[John Collins @Logically_JC]

This one hits hard.

[The Democratic Voice @TheDemVoiceNow]

If you want Colbert to put his new show on PBS, join our community! (Link in bio)

[Gary Sinise @GarySinise]

Thank you to all who fought and sacrificed in freedoms defense all those years ago. Incredible footage here. Blessed that both my uncles survived and will never forget the over 400,000 who did not come home.

[Dovi Safier @safier]

“It was one of the most monumentally unselfish things one group of people did for another.”

-#DDay veteran Andy Rooney on the young 🇺🇸 🇨🇦 🇬🇧 soldiers who stormed the beaches of Normandy 82 years ago.

Required watching for every young person today!

[Andrew Lynch @andrewglynch]

Twitter acting shocked that the Georgetown and Yale-educated son of a six-term senator, two-term VP and one-term president is intelligent, well-informed and a good communicator

[‏ً @omgsidewalks]

If every billionaire on earth stopped working, nobody would even notice.
If every billionaire's workers stopped working, society would collapse.
We don't need them. They need us.

[Negan @Roger_Negan]

This