Oct 27

On the Squirrel Hill shooting

To my Jewish friends and followers:

I’m grieving with you today. I know the neighborhood where Tree of Life synagogue sits – it’s a quiet, well-off, slightly Bohemian ‘burb with a lot of techies living in it.

I’m not Jewish myself, but I figured out a long time ago that any society which abuses its Jews – or tolerates abuse of them – is in the process of flushing itself down the crapper. The Jews are almost always the first targets of the enemies of civilization, but never the last.

But I’m not posting to reply only with words.

Any Jew who can get close enough to me in realspace for it to be practical and asks can have from me free instruction in basic self-defense with firearms and anti-active-shooter tactics. May no incident like this ever occur again – but if it does, I would be very proud if one of my students took down the evildoer before it reached bloodbath stage.

Oct 22

How to write narrative documentation

The following is a very lightly edited version of email I wrote to my apprentice Ian Bruene after he wrote documentation for his new Kommandant project that was, alas, as awful as I generally expect from programmers. I’m not training Ian for mere coding competence; he’s too talented for that and anyway I have higher standards. This is my way of insisting that he do documentation well – and it was he who suggested it would make a good blog post.

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Oct 08

Reposurgeon’s Excellent Journey and the Waning of Python

Time to make it public and official. The entire reposurgeon suite (not just repocutter and repomapper, which have already been ported) is changing implementation languages from Python to Go. Reposurgeon itself is about 50% translated, with pretty good unit-test coverage. Three of my collaborators on the project (Daniel Brooks, Eric Sunshine, and Edward Cree) have stepped up to help with code and reviews.

I’m posting about this because the pressures driving this move are by no means unique to the reposurgeon suite. Python, my favorite working language for twenty years, can no longer cut it at the scale I now need to operate – it can’t handle large enough working sets, and it’s crippled in a world of multi-CPU computers. I’m certain I’m not alone in seeing these problems; if I were, Google, which used to invest heavily in Python (they had Guido on staff there for a while) wouldn’t have funded Go.

Some of Python’s issues can be fixed. Some may be unfixable. I love Guido and the gang and I am vastly grateful for all the use and pleasure I have gotten out of Python, but, guys, this is a wake-up call. I don’t think you have a lot of time to get it together before Python gets left behind.

I’ll first describe the specific context of this port, then I’ll delve into the larger issues about Python, how it seems to be falling behind, and what can be done to remedy the situation.

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Oct 02

Rule-swarm attacks can outdo deep reasoning

It not news to readers of this blog that I like to find common tactics and traps in programming that don’t have names and name them. I don’t only do this because it’s fun. When you have named a thing you give your brain permission to reason about it as a conceptual unit. Bad jargon obfuscates, map hiding territory; good jargon reveals, aiding reflection on and and improvement of your practice.

In my last post I coined “shtoopid problem”. It went viral; every programmer has hit this, and it’s useful to have the term because you can attach to it recognition rules and tactics for escaping such traps. (And not only in programming; consider kafkatrapping).

Today’s invention is the term “rule-swarm attack”. It’s derived from the military term “swarm attack” and opposed to “deep reasoning”, “structural analysis” and “generative rules”. I’ll explain it and provide some case studies.

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