Simon @spoltier@qoto.org

ADVANCED AIRHORN TUTORIAL
https://www.youtube.com/watch?v=ttDQRBQEyBs

After two days with Claude Fable 5 the best way I can describe it is "relentlessly proactive" - here's an example where I dropped in a screenshot of a bug and it span up custom CORS Python servers and used pyobjc-framework-Quartz to capture screenshots https://simonwillison.net/2026/Jun/11/fable-is-relentlessly-proactive/

afaict the thing i'm doing is creating a sandbox for an agent, and Fable is probably hypothesizing about how to break the sandbox it created which, that's *secure* behavior. uuuuugh! support.claude.com/en/articles/...

Blogged about the time I doubled our users by doing proper engineering instead of React slop

https://www.mohkohn.co.uk/writing/html-first/

Ok, I have a 2048x3072 pixel video that shows the differences in training dynamics between Muon and AdamW, and they are fascinating to watch. Where can I upload/share such a video without it getting compressed to shreds?

A black leather jacket may be Jensen Huang’s signature look, but it’s hard to keep up appearances in sweltering heat.

who called it “losing your virginity” instead of “initial pubic offering”?!!

I may have finally found the Python-in-a-sandbox solution I've been looking for... here's my latest experiment, this time running MicroPython in WebAssembly inside my Python applications https://simonwillison.net/2026/Jun/6/micropython-in-a-sandbox/

i’ve noticed that Ai2 has shifted most of its press releases into public benefit point solutions, like OlmoEarth it’s all good stuff, but i imagine it’s a bit underwhelming for researchers like @natolambert.bsky.social@bsky.brid.gy who were trying to push the SOTA of American open weights AI

Francesca Albanese is trying to stop a genocide.
The United States and Israel are trying to stop her – by destroying her life, her career, her family, and her voice.
The US has sanctioned UN Special Rapporteur Francesca Albanese, 8 ICC judges, 3 court officials, and Palestinian human rights organisations Al-Haq, Al Mezan, and PCHR. The message is chilling: investigate genocide, speak up for international law, and we will destroy your life.

https://petition.qomon.org/0b54a0b8-demand-justice-defend-the-defenders/

#news #gaza #genocide #icc

Our AI development stack is shaping up nicely!

As a base, using any programming language:
* Sandcat to securely run agents, without having to answer tedious questions
* Orca to create deterministic development flows

Then for Scala/Java in particular, we've got:
* Metals MCP to avoid bash round-trip when compiling/testing/browsing code
* Cellar to fetch metadata of external dependencies
* Scala Skill to steer the agents towards producing maintainable, concise FP code

We built four malicious skills to test whether skill scanners actually work. Three took less than an hour to conceive and implement. ClawHub, Cisco's skill-scanner, and Vercel's skills .sh marked them as safe.

In our simplest bypass, we prepended 100,000 blank lines to a malicious skill. ClawHub's scanner truncated the file before reaching the payload, then marked the skill safe. https://blog.trailofbits.com/2026/06/03/the-sorry-state-of-skill-distribution/

In a world where a spurious regression effect in 2006 can be a lever for justifying narratives that create widespread violence and loss and grief in our communities twenty years later, you need people like me and this economist and everyone like us. I hope enough of us survive this era and get to keep doing social science.

Here's a metric that I call the 'business-to-industry' index.

It consists of the US share of world income relative to the US share of world energy use. Two centuries ago, the US was industry dominated. Today it is business dominated.

https://economicsfromthetopdown.com/2026/05/22/the-business-of-war-and-the-mismeasurement-of-military-might/

Auf dem Feld ⬆️ (hier ein anderer Blickwinkel und ein paar Stunden früher) hagelt es nur so von #Mohn. Als ob da am #Mohntag ein Mohnsun da eine Mohnokultur hätte errichten wollen.

Geniesst den Abend!
#SonneTeilen