lcamtuf’s thing

All logic, no bite

This radio station gets many requests for treatises on formal logic.

Jun 27

17

5

3

AI children's books, body horror edition

Last week, I posted a visual demonstration of the sameness of AI-generated content.

Jun 26

51

15

9

The 100,000 whys of AI

One of the most painful arguments I keep having with fellow techies is the question of whether you can distinguish between human-written and…

Jun 21

69

8

4

Getting silly with C, part &((int*)-8)[3]

Read on to uplevel your coding SKILLS.md.

Jun 6

23

6

2

Weekend trivia: your process' memory is a file

The underappreciated gem of /proc/<pid>/mem

Jun 1

29

7

May 2026

A nicer voltmeter clock

Sometimes, electronic circuit design is mostly about wood

May 16

48

30

4

April 2026

A breakthrough in C/C++ dependency management

Bringing a well-known programming language into the 21st century.

Apr 25

59

15

3

The Secret Life of Circuits

Many of you follow this blog because of the regular features about electronic circuit design.

Apr 16

51

18

5

Why I refrain from infosec punditry

If you know about my professional background, the most puzzling aspect of this Substack must be that I don’t use it to talk about my primary field of…

Apr 16

56

7

March 2026

Conway's Game of Life, in real life

When life gives you switches...

Mar 19

50

18

5

How much of HN is AI?

TL;DR: As of June 2026, about 55% of daily top stories are about AI or generated by AI.

Mar 12

24

6

1

February 2026

Approximation game

The number 22/7 and the pigeon flock of Peter Gustav Lejeune Dirichlet.

Feb 28

12

2

1