I’m 60 years old. Claude Code killed a passion

I stumble upon a post from shannoncc called ”I’m 60 years old. Claude Code has re-ignited a passion”, and it made me think. I am also (almost) 60, but AI just killed the passion. I remember all the pre-AI days, where I was enjoying coding during the day, the evening, the weekends and the vacations. […]

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100 hour gap between a vibecoded prototype and a working product

100-hour-gap-between-a-vibecoded-prototype-and-a-working-product

Last month, I spent about 100 hours on vibecoding. Now I’m pretty sure that people who say they ”vibecoded an app in 30 minutes” are either building simple copies of existing projects, produce some buggy crap, or just farm engagement. And it’s not because I am AI skeptic. Actually, quite the contrary. At my previous […]

Generating All 32-Bit Primes (Part I)

generating-all-32-bit-primes-(part-i)

Generating All 32-Bit Primes (Part I) Back to home This article documents my quest to write a C program targeting Linux that generates all prime numbers that fit in a 32-bit unsigned int (uint32_t) as quickly as possible. In particular, the program should write all 32-bit primes to a file (which, in all my implementations, […]

Ask HN: What breaks first when your team grows from 10 to 50 people?

ask-hn:-what-breaks-first-when-your-team-grows-from-10-to-50-people?

Early employees often have difficulty with the new reality. In the early days everyone is involved in making product decisions, helping with sales by implementing features, doing support for customers. If you hired juniors this is all they know. Everyone doing everything is exactly what you don’t want in a larger organization. You need structure, […]

IBM, sonic delay lines, and the history of the 80×24 display

ibm,-sonic-delay-lines,-and-the-history-of-the-80×24-display

What explains the popularity of terminals with 80×24 and 80×25 displays? A recent blog post ”80×25” motivated me to investigate this. The source of 80-column lines is clearly punch cards, as commonly claimed. But why 24 or 25 lines? There are many theories, but I found a simple answer: IBM, in particular its dominance of […]

A Visual Introduction to Machine Learning

a-visual-introduction-to-machine-learning

Finding better boundaries Let’s revisit the 240-ft elevation boundary proposed previously to see how we can improve upon our intuition. Clearly, this requires a different perspective. By transforming our visualization into a histogram, we can better see how frequently homes appear at each elevation. While the highest home in New York is ~240 ft, the […]

$96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

$96-3d-printed-rocket-that-recalculates-its-mid-air-trajectory-using-a-$5-sensor

30 Second Overview Full System Overview (5 minutes)https://www.youtube.com/watch?v=DDO2EvXyncE&t=54s Full Development Media and Documentationhttps://drive.google.com/drive/folders/17zpks6_R59H0iXJaGkTrtp1SzIFFAQtY?usp=sharing The Google Drive archive contains additional development media and documentation including: mechanical design and assembly system electronics and firmware testing launch tests and rocket motor development system flow diagram rocket specifications bill of materials and cost breakdown Project Overview This project is […]

LotusNotes

lotusnotes

2026-03-14 I tend to focus on the origin of the computer within the military. Particularly in the early days of digital computing, the military was a key customer, and fundamental concepts of modern computing arose in universities and laboratories serving military contracts. Of course, the war would not last forever, and computing had applications in […]