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Today's links How the EU can punish Google (despite Trump): Grant me the courage to change the things I can. Hey look at this: Delights to delectate. Object permanence: Chilling Effects; Billy Bragg v Myspace; Glenn Beck calls murdered Norwegian children "Hitler Youth"; Photo...

I have a copy of SICP, or as it is also known, The Wizard Book. This book is widely praised, but I can’t take the time to work my way through all of it. Instead, I’m going to occasionally jump into the parts of it that look interesting. In the previous two instal...

ARCNET was the first commercially available local area network standard, beating both Ethernet and Token Ring to market. Conceptually, it had similarities with both, and because it was inexpensive and efficient, it was popular for a good 15 years or

The post What happened to ARCNET appeared first on The Silicon Underground.

Let σ be a permutation on n elements. If there is a permutation τ such that applying τ twice has the same effect on the list of elements as applying σ once, we say σ = τ² and τ is a square root of σ. If we let our n elements be the integers 0 […]

The post Permutation roots first appeared on John D. Cook.

An Inside Look at the Relay Market Powering Token Resellers and Fraud Fascinating investigation by Matt Lenhard into the market that has grown up around reselling LLM tokens at a discount by pooling API keys from various sources. This looks to be mostly a thing in China. Res...

A couple weeks ago, the CEO of Snap was all over the news in the US because he and his wife made a large donation. The weird part about it was that every news outlet that covered it had an acrobatic title where they didn't specifically say how much they donated, yet insisted on that $550 Million amount.

When you read the article a bit deeper, you can do the math. They donated one hundredth of that amount. So I wondered, why did they inflate the amount in the first place? It looked like a PR stunt.

This past couple weeks, I worked on a video to explain what really happened and how we should take this news.

Enjoy

The function expq(x) is defined by taking the power series for exp(x) and keeping only the terms whose index is a multiple of q. For example, exp2(x) keeps only the even-numbered terms in the exponential power series and so equals cosh(x). In general, The first sum uses Iverson’s bracket notation: a Boolean expression in brackets […]

The post exp_q first appeared on John D. Cook.

To call this derivative is an understatement. But that's what this genre demands; rehash all your favourite media properties into something new. It's the literary equivalent of having your Transformers™ fight your He-Man© toys. The plot, such as it is, features the Vogon Constructor Fleet destroying Earth due to a late beurecratic appeal, forcing people to play The Hunger Games, while a Twitch …

The Origin Energy breach down here in Aus is all over the news this week, and as with many breaches, it's multi-faceted. You've got them leading with "don't worry, your credit card is fine", the hacker leading with "they didn&

Release: sqlite-utils 3.39.1

I back-ported a fix for table.delete_where() that shipped in version 4.

Tags: sqlite-utils

Ruff v0.16.0 Astral shipped a significant new version of their Ruff Python linting tool a few days ago on July 23rd. I noticed today because my various CI jobs all started failing thanks to new default Ruff checks and my unpinned "ruff" dev dependency. From Brent Westbrook's...

Opus 5: Richard III

China’s EV subsidies, the future of aeroderivative gas turbines, a US-Saudi nuclear deal, defective roadway guardrails, and more.

I was working with a wide spreadsheet from a client the other day and I had to convert between Excel column labels and column numbers. I had never paid attention to how Excel labels columns and implicitly thought it was base 26 using letters rather than digits. But then I realized that’s not right. Excel […]

The post Excel column numbering first appeared on John D. Cook.

I've performed a talk at the last three EMFs - so this time I decided to go purely as a tourist. It made things much more relaxing. No waking up from a stress dream that my laptop didn't work. No casually dropping my talk into every conversation to build up an audience. No queueing for the loos five minutes before going on. No adrenaline spikes or come downs. It was bliss! After several…

Today's links Apple's robo-repo: Privatizing the risk premium, socializing its costs. Hey look at this: Delights to delectate. Object permanence: Printed batteries; Monopoly credit cards; Mapping airport power outlets; EMI loves pirates; Mexican indigenous phone co-op; Sewer ...

(This blog post was adapted from the transcription obtained from my YouTube video at https://www.youtube.com/watch?v=l6lxgYeVZqs) When Linus Torvalds developed the first Linux kernel, he had studied the Minix sources, he had studied computer architecture, he had the base kno...

Releases, advisories, and articles from across the package management world

More than any of these eval scores, what is most exciting to me is something else: Opus 5 is our least prompt injectable model yet. It is a bit buried in the system card, but across PI evals and red teaming, Opus 5 is very hard to prompt inject successfully.

— Boris Cherny, here's that System Card section, page 73

Tags: prompt-injection, anthropic, claude, generative-ai, ai, llms, boris-cherny

Introducing Claude Opus 5 I've been offline kayaking with sea otters for much of today so I haven't had a chance to put Anthropic's new model Claude Opus 5 through its paces yet. The buzz is positive, and Anthropic's description of it as a "thoughtful and proactive model tha...