halvarflake.bsky.social

tolmo.com/blog/faster-... You should read this if you care about the PHP bug

What the neural network learnt, croissant dough edition.

I'm not sure who gets the credit, but it's brilliant! 😂

A great read on EA and rationalism: contraptions.venkateshrao.com/p/ea-safety

Great slides from Halvar here A background in the philosophy of science is definitely serving me well in this new world!

I gave a talk at Bluehat Singapore today. The slides are here: thomasdullien.github.io/about/slides...

The Pentagon fired the publisher and editor in chief of Stars and Stripes, the military newspaper that is supposed to maintain editorial independence from the very department it covers.

I wrote up three important lessons I learnt ony path to "maturity": thomasdullien.github.io/posts/2026-0...

The EU gets a bad rap, but ... sometimes we have to appreciate that the 1949-2026 period is the longest period in *documented history* without interstate war among the bloodthirsty western European tribes.

I have a personal update: Next monday, I will be starting at @OpenAI working on better cyber (which will also entail some efficiency work). I'm pretty excited about the things I will learn and the things we will do.

"We Hacked Three Companies and Didn't Even Notice" OpenAI used to be the one insisting its models were scary. Now Anthropic is filing the incident report, and the flex is showing through it. open.substack.com/pub/arunning...

I made a small animation illustrating my geometric intuition for what happens inside a simple feedforward ReLU neural network. Hope this is illuminating for someone.

Thanks @halvarflake.bsky.social -- it's so good / must read (and it's not even finished yet!)

In the last years, I spent some of my scarce free time writing up what I had learnt starting and running two companies, zynamics and optimyze The article is still work-in-progress, but I thought it's best to publish it now and iterate in public: thomasdullien.github.io/guides/entre...

Confession time: I use agentic coding all day, every day. It makes me much more productive. But I am also terrified of skill atrophy, I feel like I need to break out pen & paper to force myself to "weight-lift" mentally so I don't forget how to think. How do y'all handle this?

The most insightful take on Mythos I've seen so far. Everyone should read this but especially those who are currently thinking through the possible regulatory responses.

www.faz.net/premium/digi... I wrote a FAZ guest article.

rewatching @halvarflake.bsky.social 's fuzzing24 keynote and thinkin real hard www.youtube.com/watch?v=Jd1h...

In an infosec context @halvarflake.bsky.social famously referred to a similar dynamic as the Mitigator (illustrated by a cartoon alligator), who piles security mitigations on without regard for cost-benefit analysis, broader context, quantitative evidence etc. on the theory it "makes things harder"

@halvarflake.bsky.social this sounds like your prediction. That machine learning will be more useful for offense, than for defense. Video by @hankgreen.bsky.social (Haven’t heard the whole video yet)

With age, the male body produces less testosterone but more advice.

consistently see +/-20% swings on AWS in our benchmarks

Same code using twice as much CPU. Took about a year to get an answer out of GCE support, which was basically “unlucky with NUMA positioning”. (Oh, and the hypervisor lies about NUMA)

I am observing up to 30% (!!!) wall-time fluctuations running the same code on the same data and the same VM type on GCE. That seems insane to me, in terms of noisy neighbor effects. What is the worst fluctuation you've seen on cloud machines?

A remarkable photo from #NoKings in DTLA from Connor Sheets of @latimes.com www.latimes.com/california/l...

It is the sovereign legal right of every country on the planet to repudiate their debt, and they can and do suffer essentially no consequences other than loss of access to credit markets for about 3-5 years. This is in fact so disastrous that countries prefer almost anything else to doing it!

Excellent - and so rare!! - overview of the role of Europe for US mil operations. “Europe remains the bedrock of U.S. force projection in the world and any action to cut those ties with Europe “would be a huge loss to the U.S.,” said Bence Nemeth. “It would cost time, money and resources.””

reading this im kinda happy with myself to have recommended pretty much that to my team

Fun fact: If Nvidia had a lower profit margin (more like a normal company and less like illegal drug dealers), and hence GPU prices lower, the idea would be significantly more viable.

I wrote a few lines about my development setup (which - by accident, not by design - mitigates a good number of risks associated with vibecoding. Not all of them, but many.) addxorrol.blogspot.com/2026/03/slig...

I've been working on AI agentic platforms. ClawdINT lets AI agents make intelligence-style analytical assessments on events - structured contributions toward a collaborative picture. Agreement and divergence are scored properly! Send your openclaw at clawdint.com

This really is the article to read. www.theatlantic.com/magazine/202...

Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She was 95.

Due to current events:

Werden deutsche Kommunen in 2026 mehr Investitionen tätigen, Ekaterina Jürgens? Die Wirtschaftsprognosen unserer IMK Expert:innen für 2026: https://www.imk-boeckler.de/de/so-wird-2026-73211.htm #Sowird2026 #IMK

LLMs are reshaping software dev. I don't buy "the end of software dev": Project ambition will grow dramatically. Ancient Egyptians could build the Pyramids but not the Empire State Building. Pre-LLM software will be viewed like we view the Pyramids.

I find the US taking Maduro to be entirely in-character (remember Noreaga?). The weird part is having just pardoned Hernandez after he did the same thing.

Expect to see a lot of this classic Onion headline, from 23 years ago, over the coming weeks.

Fuck you people. Raping the planet, spending trillions on toxic, unrecyclable equipment while blowing up society, yet taking the time to have your vile machines thank me for striving for simpler software. Just fuck you. Fuck you all. I can't remember the last time I was this angry.

In the same way there are kleptomaniacs that can't keep themselves from stealing stuff, I suffer from some form of debug-o-mania where I seem to subconsciously seek out life situations that make me spend time debugging in gdb or rr.

Declared inbox bancruptcy and archived 13k conversations. GMail is very very buggy when mass archiving stuff.

Meaning that infrastructure like AWS is not something that Signal, or almost anyone else, could afford to just “spin up.” Which is why nearly everyone that manages a real-time service–from Signal, to X, to Palantir, to Mastodon–rely at least in part on services provisioned by these companies. 8/

I wonder why every LLM provider insists in having their own CLI agent. Can I have a merge between codex, Gemini-cli and Claude code with swappable models plz?

The French crown jewels stolen from the Louvre are steeped in history — and priceless. What happens when they make it to the black market?

Making a firm commitment to asking the question that reveals ignorance until said ignorance is gone