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.
@halvarflake.bsky.social
"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...
"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
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!)
@halvarflake.bsky.social · last mo.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...
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...
Halvar’s Guide to Entrepreneurship – Thomas Dullien / Halvar Flake
Thomas Dullien’s guide to software and SaaS B2B entrepreneurship.
thomasdullien.github.io
The weirdest observation: I generated movies visualizing the polytope boundaries for ReLU networks using Muon and AdamW. Same experiment, same data, same random seed. The difference is the "crease pattern" that the optimizers produce.
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.
@halvarflake.bsky.social · 3mo agowww.faz.net/premium/digi... I wrote a FAZ guest article.
www.faz.net/premium/digi... I wrote a FAZ guest article.
Thomas Dullien zu Anthropics Mythos: Software war nie auf perfekte Sicherheit ausgelegt - das rächt sich
Schwachstellen in Computern wurden lange hingenommen. Denn sie auszunutzen war technisch komplex und teuer. KIs ändern das nun. Damit zwingen sie uns, Altlasten schneller anzugehen.
faz.net
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"
Philo@opfuchs.gay · 3mo agoIt shows not only America being lol about rail, but the utterly insane way America thinks about public safety. "Just one more security control/surveillance measure" is the "one more lane" of the American public security imagination.
@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)
You Actually Do Need to Understand Mythos
YouTube video by Hank Green
youtu.be
With age, the male body produces less testosterone but more advice.
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!
M. Nolan Gray 🥑@mnolangray.bsky.social · 4mo agoWhat's something that experts/practitioners in your field universally agree upon, but that remains a "hot take" among the general public?
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.””
Europe Is Quietly Playing a Crucial Role in the Iran War
European military bases are facilitating one of the most logistically complex operations the U.S. military has been involved in for decades.
wsj.com
reading this im kinda happy with myself to have recommended pretty much that to my team
@halvarflake.bsky.social · 4mo agoI 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...
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...
Slightly safer vibecoding by adopting old hacker habits
I have seen a lot of public discussion around supply-chain attacks on the Python ecosystem, prompt injection risks when using coding agents,...
addxorrol.blogspot.com
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
Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She was 95.
Dr. Gladys West, Mathematician Whose Work Made GPS Possible, Dies at 95
ALEXANDRIA, VA — Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She passed away
thezebra.org
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.
