Scott Wlaschin

Error handling often clutters code.
Fortunately, functional programming offers a more elegant way.

@scottwlaschin.bsky.social explains the 'two-track' model 🚂 (railway-oriented programming) - keeping the success path clean while ensuring errors are always handled.

🎧 compiledconversations.com/9/

Programming isn't one-size-fits-all.

In Episode 9 of Compiled Conversations, @scottwlaschin.bsky.social makes the case for being multi-paradigm - using the right language for the right job. Just like a tradesperson has more than one tool, a programmer should too.

🎧 compiledconversations.com/9/

RIP Danny Thompson

RIP Danny Thompson. Here's a playlist featuring just some of the hundreds of songs that were graced by his bass playing. Includes Nick Drake, Pentangle, Donovan, John Martyn, Sandy Denny, Marc Bolan, David Sylvian, Kate Bush, Talk Talk, Lilac Time, Julian Cope etc
▶️ open.spotify.com/playlist/4XS...

Writing code isn't just for computers - it's for people too.

@scottwlaschin.bsky.social explains how #DDD encourages developers to use the same language as non-developers; making code a tool for communication, not just execution.

🎧 compiledconversations.com/8/

I wanted to get a video of this ghost crab but every time I got close to their hole they scuttled back in, so I tried getting clever with it. I made a little sandcastle and shoved my phone into it, hit record, and walked away. Crab was VERY suspicious of this addition to their environment.

Ep. 8: Domain Modeling Made Functional, Part 1 w/
@scottwlaschin.bsky.social

#DDD isn't about code - it's about communication, we discuss:
- Strategic vs tactical DDD
- (Sub)domains
- Bounded contexts & ubiquitous language
- Conway's Law & team organisation

🎧 compiledconversations.com/8/

Before the election, my MAGA focus group said its top priorities were ending inflation and releasing the Epstein files. Now, that same group says its top priorities are defunding scientific research and prosecuting John Bolton.

There are probably cases where we have to leave FP and do hardcore perf stuff, but with four partitions and four relatively small off the shelf containers we can do approximately 500.000 events pr second with no perf tuning and super simple code to maintain.

Kind of fun to see straight forward, functional programming in #fsharp with Result types on every single event and @scottwlaschin.bsky.social style domain driven design process 8-9 million events pr minute on a 2-core 4GB RAM Azure Container App IRL.

Thanks!

This is a great thread and the themes here apply to so many different problems that people think can't come back, but do

they had to go with “america party” over the more natural sounding “american party” because the american party already existed and they ran george wallace for president in 1968

Always a good number to use for examples :)

Exeter, pursued by a bear

Venn diagram with Bono in the left circle, an oboe in the right, and a bonobo in the centre.

Venn diagram

Like I've said before, if you have any doubts about climate change, just go to a super-boring insurance conference and listen to the super-boring panels where they dryly talk about the growing threat of disasters so catastrophic and unpredictable in scope they simply cannot be insured at any price.

A screen shot of an email reading: Dear Dr. Gill, Jacquelyn, I am writing to let you know that given the current budgetary projections and recent adjustment of NSF’s over-arching priorities, NSF/BIO will not be making any new awards through the Biology Integration Institutes Program. Therefore, the solicitation has been archived, and NSF has returned your proposal without review so you can re-submit it, or portions of it, to appropriate BIO programs that currently are receiving new proposals, if you wish. Sincerely, Jim Deshler Division Director (Acting) Division of Biological Infrastructure

Last February, I led a proposal submission that encompassed six months, hundreds of hours, four institutions, a massive team, and and 256 pages. NSF just informed us that the entire Biology Integration Institute program was archived and our proposal would not even be reviewed.

With a form email.

Domain Modeling Made Functional Workshop with Scott Wlaschin Join Scott Wlaschin's Workshop to learn how functional programming can be an excellent approach to designing reusable systems with a rich domain model.

Where does #DomainDrivenDesign meet #FunctionalProgramming?
We are considering scheduling a new edition of @scottwlaschin.bsky.social workshop based on his famous book.

Show us your interest, subscribe to our waiting list: www.avanscoperta.it/en/training/...

Period: January - February 2026 🤩

This is great news.

We tried @mikecaulfield.bsky.social's SIFT framework last week. It was amazing - verifying and cross-referencing multiple claims using reputable sources.

Using Claude Deep Research and MCPs for browser & structured thinking we got it to list all claims then validate each one.

The best tools take power away Good tools give users agency; the best tools take it away and prevent mistakes.

This is a really nice blog post, and I'm touched that what I wrote back then had an impact in someone's life! Always humbling to hear these things, many years later.
faingezicht.com/articles/202...

Scientists at Loughborough University create 'world's smallest violin' The violin is smaller than a human hair and has "laid the groundwork" for future research.

Well this couldn’t have come at a better time www.bbc.com/news/article...

I'm just glad one of these men has the nuclear codes and the other has all our personal data.

Google AI result for “you can’t skip a rock on a frog”

Google AI result for “never lick a spoon you can’t eat”

Google AI result for “seven badgers up the ladder”

Google AI result for “don’t bite the bat that bit you”

can’t remember where I saw it but someone realized you could get google’s AI to hallucinate elaborate explanations for fake proverbs by just typing them into search and i just checked and google still hasn’t fixed it and now i can’t stop doing it

A few weeks back someone was asking how the US legal system could be so impotent and accommodating of the Trump admin's incursions, and at the time I was reading 'A Nation of Enemies: Chile Under Pinochet'. This passage, about Chile's courts and judges, was instructive then, and resonates here.

VEO 3

Prompt: Generate a TV news anchor with a British accent, the anchor says "in shocking news, Jake Kaye Rowe ling's yacht sank with her on board after being attacked by orcas off the coast of turkey" include the announcement in the dialogue.

This took one prompt and 2 minutes to generate.

An Oral-B login screen.

I have been logged out of my toothbrush.

A set of eight rectangular cookies arranged on a square white plate against a dark wooden background. Each cookie is inspired by a wallpaper design by Morris & Co. The patterns represented feature different floral and leaf shapes in shades of baby blue, soft pink, leafy green, mustard yellow, cream, and dark grey.

Today is National Biscuit Day, and it’s about time that I populated this account with biscuit (cookie) sets from the past few years. Here are some of my favourites. 🧵

First up, a set inspired by the delicious designs of William Morris and John Henry Dearle.

Sensemaking with SIFT Toolbox

For those that don't know I've made what some people would call a "fact-checking" engine that runs on top of Claude.ai. I call it a "contextualization engine". It's called SIFT Toolbox, and it acts as a "prompting layer" that changes how Claude acts. checkplease.neocities.org

I really think at its heart philosophy is one giant battle, taking place over many eras and nations, between people who are basically pleasant bureaucrats and people who are sexy murder poets, and it’s both super important and super boring that the pleasant bureaucrats must win.

A three-panel comic featuring a bear and a koala sitting side by side. In the first panel, the koala says "I FAILED," to which the bear responds in the second panel, "WELL, AT LEAST YOU TRIED YOUR BEST." The koala replies, "I DIDN'T." In the third panel, the bear optimistically says, "WELL, THERE'S ALWAYS NEXT TIME," and the koala responds with a dismissive, "NAH, I'M GOOD." The comic humorously illustrates a lack of motivation or concern about the failure.

friday mood