Claus Dahl

Blogs and hacks. Machine Learning at @visma. Previously Imity, Etnul, @marksaved, SpotifyDJ. Runs @demodag and (co-organizes) @coderdojocph - private profile.

[Claus Dahl @Claus]

This website is run by a horrible person

[Claus Dahl @Claus]

And this is with the best Italian player dropping out early

[Bastien Fachan @BastienFachan]

The Italian flag already in the final while the quarterfinals are not even over is such a flex

[Claus Dahl @Claus]

@JustinWolfers A while back Adam Greenfield wrote op his "core texts" - the essential reading and also at what age he encountered it - I ended up doing the same for books https://t.co/iUkdKZGDmC and music https://t.co/UdNphLWCv3 (some of this in Danish and you've never heard of it)

[Claus Dahl @Claus]

Og vil du være vært for den næste Demodag (sept/okt) så skriv til mi

[Demo Dag @demodag]

TOMORROW. - join us https://t.co/c5fzztEV2P (dinner reservation is closed. Demo are very open - dinner at 18 - demo at 19)

[Claus Dahl @Claus]

@tveskov En politisk remigration af den jyske overvægt i Folketinget ville være en politisk gamechanger

[Claus Dahl @Claus]

There are more things to 20x than there are Mitchell Hashimotos. For those we accept AIs improvements

[Mitchell Hashimoto @mitchellh]

I've got an agent in a loop optimizing a renderer with the goal to minimize frame times (and tests to measure). It got times down from 88ms to 2ms and allocations down from ~150K to 500. Sounds good, right? Wrong. This is exactly why agent psychosis is a big fucking problem.

As an experiment, I rewrote the Ghostty core render state in Go, with access to identically laid out data structures as Ghostty and the exact same validation tests. I made a purposely naive renderer (simple, correct, but slow). 88ms per frame with 150,000 allocations (horrendous, lol)!

I then kickstarted a Ralph loop to bring the frame times down. I told it it can't modify input data structures or the public API or tests (they're correct), but it can do anything else it wants. It got to work.

It has worked for about 4 hours. I've spent around $350 on this experiment so far. The results?

88ms => 1.5ms
150K allocs => ~500 allocs

Incredible right? Nope.

My hand-written renderer I ported has frame times (same benchmark) of ~20us (0.020ms) and 0 allocations in the update path.

This is the problem with psychosis and lacking systems understanding. If you don't understand the system, you're going to accept that this is an incredible result. If you understand the system, you'll see better solutions immediately and can do roughly 75x better on throughput.

The people who blindly trust agent output are in the former camp. They're sheeple, overdrinking from a fountain of mediocrity.

Standard disclaimer: I use AI all the time. I like AI. The point I'm making is to not blindly accept results. Think. Analyze. Learn.

[Claus Dahl @Claus]

@francoisfleuret Especially if you look at the chain of thought they put out. It's gaming the task like an exam problem

[Claus Dahl @Claus]

Yes. Det er IDAG du skal skrive dig på listen hvis du skal nå med til Demomiddag til næste demodag...

[Demo Dag @demodag]

Today is your last chance to sign up for the pre-event dinner - sign up for the event itself RIGHT NOW to learn more https://t.co/c5fzztEV2P

[Claus Dahl @Claus]

Yes - kom og spis demomiddag med os. Meld dig til med det samme.

[Demo Dag @demodag]

Demodag is back - June 2nd. And this time it's dinner and a demo show. Dinner (paid, advance booking) served at 6pm - Demos at 7pm - signup to learn more about dinner booking https://t.co/c5fzztEV2P

[Claus Dahl @Claus]

Ahrmen det er jo genialt - så kan I rejse hjem

[WarTranslated @wartranslated]

Russia took forever trying to find an excuse for the drone strikes, and here is what they cooked up:

[Jack Morris @jxmnop]

if you write some really good code these days everyone thinks you did it with Claude Code. if you lose a lot of weight everyone thinks you did it with Ozempic. at least you can still be really good at dancing. they don't make ozempic or Claude Code for being good at dancing

[Gabrielius Landsbergis🇱🇹 @GLandsbergis]

Russia is stupidly provoking WWIII by resisting the Great Power of Ukraine. Putin should stop the killing and give up territory for peace. Thanks for tuning in to the latest episode of Realist Geopolitics.

[Demo Dag @demodag]

Yes - it is time for the next @demodag. There's demo dining before the demos. Sign up for more info. Do it no later than end of next week.

[Claus Dahl @Claus]

Det er snart tid til den næste @demodag - det er på Klub - og der er demo-middag før demoerne begynder! Meld dig til https://t.co/qvgHj3bKLo

[Claus Dahl @Claus]

@sonyxperia Hey Sony I think you switched the before and after shots

[Claus Dahl @Claus]

@WhiteHouse Here's an easy way to get to 51: Statehood for Puerto Rico. Giv'em a couple of senators also.

[Claus Dahl @Claus]

@tveskov PSA - hæld kogende vand på den og boom

[Claus Dahl @Claus]

Hvorfor hedder det overhovedet Rio Bravo og ikke Bravofloden? Meget meget sært

[Søren Espersen @EspersenSoren]

Jeg raser: Var i aftes lige et smut omkring “Rio Bravo” i København. Flinke tjenere, men de kunne ikke tale et ord dansk. Det er sgu da elendigt og meget, meget sært…

[Jonathan Blow @Jonathan_Blow]

It's been 3 months since the 100x vibers started 100x vibin'! So, post your 25-years-of-work-equivalent project here, so we can signal boost and everyone can celebrate the Life's Work that you did in 3 months. Looking forward to it, Let's Go!!!

[Claus Dahl @Claus]

This is hilarious

[The Kyiv Independent @KyivIndependent]

Pussy Riot and Femen stormed the Russian pavilion at the Venice Biennale on May 6 to protest the Kremlin’s war against Ukraine.

Video: Katia Margolis / Facebook.