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Since learning about the effects of high CO2 concentration on attention and cognitive performance—especially at levels much higher than 2000ppm—I've started monitoring CO2 and other air quality indicators in my house, at my studio, and even on the road.

I have a few other air quality monitors I'll be covering in the future, but today I wanted to focus on one I only heard about in the comments on a recent video tearing down a cheap no-name 'Air Quality Detector' from Amazon.

Want me to fix that too?

A few days ago I booked a Novotel hotel on Booking.com - two days later I received these phishing messages via WhatsApp. Both knew my exact name, phone number, location of stay, and date of stay. Luckily, both were fairly inept. Let's take a quick look at them. The first came from a Portuguese business account. Obviously the name doesn't match that of the large chain hotel I booked with. The …

It was 25 years ago this week, on October 25, 2001, that Microsoft released Windows XP. I find it interesting that Microsoft released two of the most beloved Windows versions in the same week, 8 years apart, and another one

The post Windows XP released October 25, 2001 appeared first on The Silicon Underground.

Many people are saying that AI will make software faster by rewriting it in faster languages, but this isn’t generally true. Most programs cannot be meaningfully sped up by rewriting them in C or Rust. How can this be true? Some languages are orders-of-magnitude faster than ...

DE STAAT - FREEDOM (Official Music Video)

OK well this is a first for me... at 00:44 in this new music video by Dutch alternative rock band De Staat:

The visual effects are credited to Matties Grooten of Fake it or Leave it.

Via flir on Hacker News

Tags: music, ai, generative-ai, pelican-riding-a-bicycle

Donating Agent Skills to the Agentic AI Foundation News today from Anthropic: We’re committed to keeping Agent Skills open, community-driven, and vendor-neutral. Today, we are donating the standard to the Agentic AI Foundation (AAIF) under the Linux Foundation, which we co-...

Nobody in the tech industry wants to see them collapse, but the stock has dropped over 50% in the last six months, anyway

I'd say in a given week I probably only do about fifteen minutes of real, actual, work. — Office Space I was watching a video where a guy said he has 8 agents working in the background. He was stressed out and was trying to "get shit done." At one point he said "I have no ...

A Python script that worked a few days ago wouldn’t work today. I suspect it might have something to do with my updating everything I could think of in response to recent security breaches. I got an error message that said error: The script contains multiple PEP 723 metadata blocks I searched on what that […]

The post Working around a strange Python problem first appeared on John D. Cook.

As fun as AI is, we built so much bad software over the last 30 years, and now the universe is punishing us for our sins.

— Armin Ronacher

Tags: security, generative-ai, armin-ronacher, ai, ai-security-research, llms

Been a while! Man, it's so much harder to write essays for a newsletter when I have a full time job writing essays for a company. So three bits of housekeeping first of all: As of last month I now live in NYC! Let me know if you want to get coffee or have me swing by an off...

Building systems that incentivise good behaviour

What I learned from touring Intel’s most advanced fab and talking to its leadership.

In the hours following the release of CVE-2026-93479 for the project NGINX, site reliability workers and systems administrators scrambled to desperately rebuild and patch all their systems to fix a heap buffer overflow in worker script evaluation triggered by crafted...

Who knows what piece of infrastructure might be attacked next.

You may have seen references to a password being the number 4. There are countless allusions to this online, but they don’t give the context. As I mentioned in an earlier post, eMudrha was using the numbers 4, 56, 115, 155, 156, 230, and 237 as secret keys. I haven’t seen details of how this […]

The post How the eMudrha certificate debacle might have happened first appeared on John D. Cook.

In the theme of NixOS enabling fearlessness, here’s a way I use Nix on other Linux distributions to sleep better at night: managing dependencies of simple scripts. This way of using Nix is for everyone, not just those willing to try NixOS. We’ll look at it first for a...

The good folks at Mokin have sent me their new USB-C hub and it is a beast. This is the MODK2403 - the latest in their line of high-tech USB-C docks. It does close to everything you could want and has an LCD monitor for showing the weather. Errr… What? OK, a quick product shots, then on to the specs. On to the ports: Triple display Either 3x HDMI or 1x HDMI and 2x DisplayPort 4x U…

An elliptic curve E over a finite field F consists of the set of points (x, y) satisfying the equation y² = x³ + ax + b with x and y in F. Typically in cryptography the field F is the integers mod p where p is a very large prime number. The number of points on E is roughly the number […]

The post The number of points on an elliptic curve first appeared on John D. Cook.