My Take on Undefined Behavior in C :root { color-scheme: light dark; } * { box-sizing: border-box; } body { max-width: 68ch; margin: auto; margin-bottom: 40em; font-family: -apple-system,…

Introduction ✨ Code: In , we built transformer-like modules around naive mean-field descriptions of driven stochastic vector spins wobbling about on hyperspheres. The modules , but their mean-field…

Every shift in software has been told it’s already solved. With AI, that pushback has become gatekeeping, and it risks talking us out of the biggest chance in decades to change how we build.

Last of my three Booker shortlisted birthday novels, and another absolutely brilliant, original book. Switzy is the last few days in the life of a guy heading to his assisted death, told in the first…

Originally I was toying around with a question about floating-point precision in PyTorch: as a joke, I was curious to see if it's possible to find some weird loss \(\mathcal{L}\) for which calling…

Up early, planning call, sync with Laser, lunch. Catch up with Andras, Monthly management meeting, sync with Kohei. Dentist, more admin.

Ten days. Thirty-five of my closest Kansas City friends. Multiple countries. Thousands of stairs. Millions of calories. And enough cheese to make a Wisconsin dairy farmer weep with joy. Hosting...…

You may have seen these “loud working” types. That is someone who is always announcing how hard they are working, how valuable they are and how important they are to the…

I’ve been seeing a few folks around making posts about their laptop stickers, and thought it would be a fun little diversion to post about. I have far too many stickers in my craft…

Push to multiple git remotes with one command I keep my main repo on a self-hosted server and mirror it to GitHub. Two remotes, one command. 1. Add the remotes git remote add aurcade…

Summary In which our intrepid explorers actually, you know, explore. Day Three I woke up early and went for a walk to watch the sunrise. Banff was quiet - just some folks walking to their jobs - and…

Landlock users in Go, by library Not using Go-Landlock yet? Landlock feature sets in use How to use more Landlock features If you maintain a software library, it is easy now to crawl code…

Four years ago in 2022 a paper appeared in the journal Science Translational Medicine entitled “SARS-CoV-2 S2–targeted vaccination elicits broadly neutralizing antibodies”. It…

Fucking fall is here. Or so I would’ve thought in earlier years. These days I’m not so sure. I haw learned to appreciate the seasons for what they are. At least a little more.Our…

In my career, first as a mathematician and then as a math writer, I’ve read a lot of books that were written by mathematicians “for the general public.” And yet I have found very…

I'm a former homemaker. I spent about two decades as a full-time homemaker and I think my oldest child was nineteen when I got my first full-time paid job during my divorce. At some point, I read…

The Ana and Din Mysteries, currently three books starting with The Tainted Cup is a fantasy detective series that managed to tell both interesting detective stories and provide an interesting world…

The Frankenstein genesis legend gets a delightfully 80s-horror-film makeover in this semi-obscure classic.

I have been angry about this for days.

Somedays you wake up and your head lifts from the pillow like a brick tied to a noose. A heavy lead ball, disaffected and disjointed, you cradle one hand against the disappointment of your face, and…

After the recent announcements by OpenAI et al., I am often asked whether there is still a future for researchers in academia. I think this is an important question—but I believe an equally…

Isaac Correa's study of eight months of his own daily work with Claude Code: the model mattered more than the rules he wrote, guards filtered without teaching, and his supervision moved from…

One of the struggles I have come to know intimately over a career as a programmer is the tendency to over-engineer solutions. You constantly walk a knife edge trying to write good clean code and also…

October Microsoft Patch Tuesday. A total of 1,409 vulnerabilities. For comparison, there were 973 in September, an increase of about 45%. 🙈 Thirteen products had fixes for 20 or more vulnerabilities:…

In mountaineering, the idea of climbing 2 or more mountains in one trip, which may often cover multiple days, is nowadays called enchainment. By one trip, I mean in one push. And by that, I mean in…

Supplements advertise boosting your immune system because it's not a medical claim.

Derek Sivers brilliantly explains in under five minutes what it takes to be a leader. Not all TED talks deserve your attention, but this one definitely does. And Derek Sivers himself too. After his…

One of eMudhra's certificate authority private keys is the number 4.Not a number that starts with 4, or the number 4 followed by a few hundred random digits, just, 4... Another one is 56, and…

I was in Chicago, stopped by Dusty Groove, and found this album in the “new used” crate. With tenor saxophonist Houston Person, the provocative cover art (by Hal Wilson), the Muse label, the sidemen,…

Security personnel around the world are on high alert Tuesday following... Continue reading →

A practical look at what happens when you push Java Virtual Threads in the wrong direction: how unmounting copies stacks to the heap, triggers OutOfMemoryErrors, pressures the Garbage Collector, and…

Hydrogen remains one of the most exciting applications of clean , renewable energy. Its production has been demonstrated on an industrial scale. Today the price of hydrogen is at an all time low of…

🛠️ The Year is 1999. Meerendal Wine Estate. If you clean out your old desktop folders long enough, you occasionally stumble across absolute gold. The photo above takes me straight back to the winter…

BICEP – “Gas” ft. Lauren Duffus & SOARR BICEP – “Ultra” ft. Eartheater & Saskia BICEP – “Equarium” ft. Kehina The post BICEP – Gas /…

Next up was the Anchor, a pub that wasn’t on my original list, but I’m pleased now that I took a punt on this lengthy oak-beamed building that is over 300 years old. Situated close to the quayside…

I first heard of Squint back in 2022, when they released their Feel It EP. I'm pretty sure that I got the tip from No Echo on the band... back when I was paying attention to this kind of thing. I…

"Can I go into your heart?" A girl (Arabella Olivia Clark) is targeted by some demon that tries to take over her heart by shapeshifting into her mother (Jessica Chastain). As the family realise what…

Mountains calling

How cushy did those Boomers have it compared to Gen Z, really? Posted by Ed Folsom, October 20, 2026. (Revised 10/22/26 9:15 a.m., to correct faulty median home sale price numbers for 1985, 1987,…

I’ve been experimenting with LoRa mesh networks, AI agents, and running local LLMs with Ollama. At some point, it occurred to me: why not bring them together? Both Meshtastic and MeshCore…

A few weeks ago I linked to Rich Hickeys Gist-Post about open source. Yesterday, Konstantin pointed me to the CultRepo-Youtube-channel and their playlist Documentaries for Developers. Concidentally,…

Jesus knew who would betray him and who would deny him, yet said he did not know the day or the hour. What that tells us about free will. Giotto di Bondone, Kiss of Judas, fresco, Scrovegni Chapel,…

xss in the rss reader yarr

A few years ago, I was having coffee at a conference with a friend and fellow speaker, when someone approached with a question."Jay!" she said. (A fine opening, I thought. For that, dear reader, is…

WE'RE DOIN' IT AGAIN!!! This dungeon can be either standalone (in which case there is an area for a potential entrance marked with a large E on the map above) or it can serve as a lower dungeon level…

The January issue of my monthly newsletter is out!

The February issue of my monthly newsletter is out

The UK’s political conversation is almost entirely focused on how to find money and how to spend it. We debate taxes, borrowing and public service budgets while neglecting the economy that generates…

I have worked in software engineering for more than thirty years and witnessed several combinatorial explosions firsthand. The AI-driven explosion now under way is different, and that distinction…