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Posts by Moishe Lettvin

This is probably not a popular take, but after more than 40 years programming (35 of that professionally), using LLMs to help me code has helped me rediscover the joy I had for coding when I was in my teens.

I've found a longer lever, with all the power and danger of that.

5 months ago 6 0 2 0

I didn't find it scary, per se, so much as intense. I thought it was very good.

7 months ago 1 0 0 0

I don't post on BlueSky very often but when I do you'd better believe it'll be about slime mold.

This is super cool.

8 months ago 15 2 0 0

this rules

8 months ago 1 0 0 0
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Hey Ben what was John Lewis known for? What is this book about?

10 months ago 15 2 1 0
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Ben Chestnut made $6B pretending to be progressive so that his employees would buy into his cult without demanding equity. Honestly the worst part about it is that he has nothing better to do with his life now than punch down on the social network for bland airheads (LinkedIn).

10 months ago 16 5 5 1
Generative coding tools and <p>Recently, at work, someone mentioned that a popular generative coding tool, which will remain nameless, introduced a “security review” feature. I expressed some doubt about the value of an LLM-driv...

Wrote up some thoughts about LLM-powered "security reviews" here: www.moishelettvin.com/2025/06/06/s...

10 months ago 14 3 0 0

That’s the beauty of open source,

there’s always someone out there, ready and willing to contribute to your project,

who is wrong.

11 months ago 117 22 1 1

that was one of my favorite days!!! Your photos bring back such great memories.

11 months ago 3 0 1 0

An amazing thing AI does is lets us see who lacks a theory of mind.

11 months ago 14 1 1 1
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GeLLMan Amnesia

1 year ago 2 0 0 0
Trees and rocks, lit up red and white

Trees and rocks, lit up red and white

Pre-dawn aspen trees in front of a misty backdrop, lit pale red

Pre-dawn aspen trees in front of a misty backdrop, lit pale red

Snow flakes illuminated in front of silhouetted out of focus trees.

Snow flakes illuminated in front of silhouetted out of focus trees.

Headlights illuminate an aspen grove, split by a dirt road with snow.

Headlights illuminate an aspen grove, split by a dirt road with snow.

Woke up at 4am and drove into the mountains to take some photos.

1 year ago 24 1 1 0

Prompt engineering? No, the shit takes ages and the estimates are always fucked

1 year ago 7 2 0 0
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Sign — Pearl for You

Hey #Boulder folks - time to sign a petition to get West End Pearl Street as a pedestrian zone added to the ballot.

Idiot city managers re-opened this space despite all data to the contrary.

www.pearlforyou.org/sign

1 year ago 2 1 0 0
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Great quote by Thomas Merton, who was a poet and (should be) a saint.

1 year ago 19 5 0 0

Beyond this being doomed to failure for any code, I’m thinking about how complex and full of weird little quirks and complexities the payment code is at $prevstartup, and that code had only been around a few years and only served a few thousand customers.

1 year ago 13 0 1 0
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I have Severance takes

1 year ago 66 5 7 0

I saw them just a few weeks after that at the Mercer Arena in Seattle. Wish I still had the ticket stub!

1 year ago 1 0 1 0
OF THE EMPIRE

We will be known as a culture that feared death
and adored power, that tried to vanquish insecurity
for the few and cared little for the penury of the
many. We will be known as a culture that taught
and rewarded the amassing of things, that spoke
little if at all about the quality of life for
people (other people), for dogs, for rivers. All
the world, in our eyes, they will say, was a
commodity. And they will say that this structure
was held together politically, which it was, and
they will say also that our politics was no more
than an apparatus to accommodate the feelings of
the heart, and that the heart, in those days,
was small, and hard, and full of meanness.

OF THE EMPIRE We will be known as a culture that feared death and adored power, that tried to vanquish insecurity for the few and cared little for the penury of the many. We will be known as a culture that taught and rewarded the amassing of things, that spoke little if at all about the quality of life for people (other people), for dogs, for rivers. All the world, in our eyes, they will say, was a commodity. And they will say that this structure was held together politically, which it was, and they will say also that our politics was no more than an apparatus to accommodate the feelings of the heart, and that the heart, in those days, was small, and hard, and full of meanness.

This one has already circulated a lot over the past few weeks but honestly it's all I've been able to think about lately

1 year ago 73 18 3 0
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You can make the world better by trying the dumbest, easiest thing you can think of, and repeating and building on the ones that work.

1 year ago 12 2 0 0

likewise!

1 year ago 0 0 0 0

Senator: [shuffles assorted papers] and you said that the park squirrels have appointed a king to rule over their kingdom, correct?

RFK JR: arg [incoherent mumbling] I think I said queen

Senator: alright let’s play the clip

1 year ago 195 29 2 1
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1 year ago 25 6 3 0

Email to the group house when someone ate some of your peanut butter.

1 year ago 151 16 8 1
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Anne Castle steps down as the federal representative to the Upper Colorado River Commission Worth sharing in full: January 282, 2025 Re: Resignation as U.S. Commissioner to Upper Colorado River Commission Dear (addressee redacted) As requested, I am submitting my resignation as U.S. Commi…

Anne Castle's letter of resignation as US Commissioner on the Upper #ColoradoRiver Commission is worth a read: www.inkstain.net/2025/01/anne...

1 year ago 38 16 2 6

Really loved this on Civil War & Alex Garland’s career.

1 year ago 19 2 0 0
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January 27th, 2025.
10:22 AM local time.
The frigid North Atlantic waters 8 miles southeast of York Harbor, Maine.
It begins.

1 year ago 37 4 4 0

the main thing this makes me think about is what US-built models are doing now that is less obvious to us, and what they might do in the near future given our current political landscape.

1 year ago 1 0 1 0
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The first two responses here are unsurprising but the third is a confabulation. Leica was boycotted in China in 2019 because they used a Tank Man photo in an ad.

1 year ago 1 0 1 0

That they serve as an accretion point for more traditional misinformation and propaganda is an unfortunate but probably inevitable side effect.

1 year ago 3 0 0 0