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I made a chair
I made possibly the simplest chair from an instructable I found. Uses one 8-foot 2"x12" and some very basic cuts.
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The latest blog posts to take off on Hacker News. 49,203 posts.
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How Georgists Valued land in the 1900's
The lost art of the "Somers System" of land valuation
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Estimating Logarithms
While reading through the fantastic book *[The Lost Art of Logarithms](https://www.lostartoflogarithms.com/)* by [Charles Petzold](https://www.charlespetzold.com/) I was nerd-sniped by a [simple method](https://www.lostartoflogarithms.com/chapter04/) of estimating the logarithm of any number base 10. According to the…
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AI Responses May Include Mistakes
The other day I wanted to look up a specific IBM PS/2 model, a circa 1992 PS/2 Server system. So I punched the model into Google, and got this:
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Simpler Backoff
Exponential backoff with jitter is de rigeur for making service calls. This code, or something like it, probably looks really familiar: func do(ctx context.Context) error { const ( maxAttempts = 10 baseDelay = 1 * time.Second maxDelay = 60 * time.Second ) delay := baseDelay for attempt := range maxAttempts { err :=…
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Beating Google's kernelCTF PoW using AVX512
PoW is gone 🦀🦀
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De Bruijn notation, and why it's useful
At least a familiarity with the lambda calculus, including how it is evaluated. Some base knowledge of programming languages is also assumed.
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What's working for YC companies since the AI boom
The goal of this analysis was to understand what’s working for YC companies by looking at which ones have raised Series A rounds.
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U.S. sanctions cloud provider 'Funnull' as top source of 'pig butchering' scams
The U.S. government today imposed economic sanctions on Funnull Technology Inc. , a Philippines-based company that provides computer infrastructure for hundreds of thousands of websites involved in virtual currency investment scams known as “ pig butchering .” In January 2025, KrebsOnSecurity detailed how Funnull was…
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Copy Excel to Markdown Table (and vice versa)
Easily create Markdown tables by copying data from Excel or Google Sheets and pasting it into the text box below using Ctrl+V. Alternatively, as a new feature, paste a Markdown table to convert it to Excel/Google Sheets format. The result is automatically copied to your clipboard and ready to use. Error: This tool…
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Notes on Tunisia
I spent almost three weeks in Tunisia, visiting the cities of Tunis, Bizerte, El Kef, Tozeur, Tataouine, El Jem, Sfax, Sousse, Monastir, Kairouan, and a few smaller towns in between. At first, I th…
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Untrusted chatbot AI between you & the internet is a disaster waiting to happen
JavaScript, math, maps, etc
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Learning C3
Learning the C3 programming language
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Java Virtual Threads Ate My Memory: A Web Crawler's Tale of Speed vs. Memory
I built a simple web crawler using good old platform threads. It was just a multithreaded crawler, nothing fancy. But then, curiosity…
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Nitrogen Triiodide (2016)
Nitrogen Triiodide
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Gurus of 90s Web Design: Zeldman, Siegel, Nielsen
With the rise of Flash and CSS in 1997, three web design philosophies emerge. David Siegel advocates for 'hacks', Jakob Nielsen keeps it simple, while Jeffrey Zeldman combines flair with usability.
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A visual exploration of vector embeddings
For Pycon 2025, I created a poster exploring vector embedding models, which you can download at full-size . In this post, I'll translate ...
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A toy RTOS inside Super Mario Bros. using emulator save states
They're Mario Bros. for the NES, apparently.
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What does “Undecidable” mean, anyway
An explainer for people who don't know computer science and are mildly curious
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Compiling a neural net to C for a speedup
A cozy little corner of the web.
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Revenge of the Chickenized Reverse-Centaurs
In AI circles, a “centaur” describes a certain kind of machine/human collaboration, in which “decision-support” systems (which the field loves to call “AI”s) are paired with human beings for results that draw upon the strengths of each, such as when a human chess master and a chess-playing computer program collaborate…
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Compiler Explorer and the promise of URLs that last forever
How we're preserving 12,000 legacy links as Google's URL shortener rides into the sunset
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Getting a Cease and Desist from Waffle House
I reverse-engineered Waffle House's website to build a live version of the (unofficial) Waffle House Index, and got a cease and desist for it.
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LLM codegen go brrr – Parallelization with Git worktrees and tmux
If you're underwhelmed with AI coding agents or simply want to get more out of them, give parallelization a try. After seeing the results firsthand over the past month, I'm ready to call myself an evangelist. The throughput improvements are incredible, and I don't feel like I'm losing control of the codebase.
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The Blowtorch Theory: A new model for structure formation in the universe
How early, sustained, supermassive black hole jets carved out cosmic voids, shaped filaments, and generated magnetic fields
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Atomics and Concurrency
This is going to be a long post, but I hope you get value out of it. This wasn’t an easy topic to tackle but it was definitely worthwhile!
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Why are 2025/05/28 and 2025-05-28 different days in JavaScript?
A Date in JavaScript always represents a point in time (i.e. milliseconds since epoch). This is more apparent when printing out the full date string: