Robin Marx

In case you want to know more about why #HTTP3 is needed and how it works, I have an in-depth article series @smashingmag : smashingmagazine.com/2021/08/http3-…

Apple has landed the rights to turn ‘MISTBORN’ into a film franchise & ‘THE STORMLIGHT ARCHIVE’ into a TV series. Brandon Sanderson will write, produce and consult on all projects. (Source: hollywoodreporter.com/movies/movie-n…)

TTFB is a notoriously difficult performance metric, because it has so many different definitions and nuances. New features like Early Hints and Speculation Rules only make that worse. My new blog highlights these issues so you know what to keep in mind: calendar.perfplanet.com/2025/ttfb-does…

Web Performance Calendar day 24 with @programmingart on TTFB. Yes, it's one of those X-mas Eves where we cuddle by the fire, drop everything and immerse into re-learning and re-evaluating what we thought we knew about a concept we use daily calendar.perfplanet.com/2025/ttfb-does…

Web Performance Calendae day 13 with Yoav Weiss (@yoavweiss) showing us a clever and creative way to ship *only* critical/necessary CSS for each page type (home, search, etc) *and* also avoid duplicating code in CSS bundles. calendar.perfplanet.com/2025/how-to-lo…

The reason genAI is cheap and unlimited right now is because it is heavily subsidized by blind and reckless investing… As a business venture it is vastly unprofitable compared to the energy it costs and once the bubble pops the landscape will change

You don't need to understand the OSI Model to work in cyber... ...because nobody in cyber really understands the OSI Model anyway. They've all heard of it. They can all describe parts of it they think they understand. But everyone knows they are hazy on other parts. The infographic below is wrong, actually. Any graphic like this that you see is wrong. You can verify this yourself by searching for "OSI Model" on Twitter and see whether everyone's pictures of the 7 layers actually match each other. They don't. In other words, you know they are wrong not because you can find the correct one somewhere (you can't), but simply because they all disagree with each other. The reason is that OSI was created to for how mainframe networking worked in the late 1970s, to create an official set of standards. The Ethernet and TCP/IP Internet didn't conform to that model, but became the unofficial, de facto standards anyway. Ever since they've been trying to "retcon" the OSI Model, to reconcile it with Ethernet and the Internet. "Retcon" means "retroactive continuity", like when the second Star Wars movie says that Vader is Luke's father, when in the first movie, it said Vader killed Luke's father. The same with OSI Model. Instead of paying attention to what the original model actually was, they attempt to redefine it to fit the Ethernet and Internet that we have now. But there's no standard for this, so everyone's retcon version is slightly different, so no two sources describe the model the same. Meaning, nobody really knows that the model is. It's kinda freaky. Everyone is hazy on the details, especially the upper layers. But they are certain somebody, somewhere, has a handle on this, a expert that truly knows the details. There isn't. At least, there's me, telling you it's all wrong. But there's no expert that can challenge me on this, such as somebody who defends the above infographic as being correct.

Calling it now: There will be no consequences for the creators of the AI bubble that is about to take down the US economy. The main culprits will be made whole by the taxpayer, and the gullible fools in media who promoted the bogus tech will remain in cushy positions of influence

retweet if you actually just fucking hate AI

That’s actually the perfect use of generational wealth

I hate AI with a passion. It’s an unregulated, unconsidered, human-ingenuity-wrecking, resource-sucking, climate-destroying theft-machine being pushed by short-sighted, greedy individuals putting product and profit over people and planet. But it turns out… I can hate it more.

wrote the same word-counting program 5 times, each faster than the last best result: 494× faster than my first Python version — by using SIMD in C all are O(n), but some squeeze far more from the CPU and memory!

Sometimes servers don't send HTTP response data in the right order. Our new article explains why request priority matters for HTTP/2 and HTTP/3 connections, and how poor server-side support can impact page speed. debugbear.com/blog/http-prio…

We're live right now, come join us!

📢 Excited to have @TimVereecke join me Wednesday to talk shop about 2025 and details from a recent blog post from he and @programmingart re: performance in 2025. Join us! ✨ SPDY STREAM 003 ✨ 📆 Wed July 9th ⏰ 1p EST 🔗 bit.ly/spy-stream-003 🔗 blog post: akamai.com/blog/performan…

11.9 Light-years from home. 6th grade science teacher. 1 chance to save us all. Watch the trailer for Project Hail Mary – based on the novel by Andy Weir, starring Ryan Gosling, and directed by filmmakers Phil Lord and Christopher Miller. Only in theaters and IMAX - 3.20.26

Is everyone fucking nuts? Did we actually believe that after decades and decades of studying the brain and coming up with next to zilch, that a handful of rich, arrogant midwits in Silicon Valley would come to a full understanding of consciousness and deliver to us artificial general intelligence? Do you know that the Swiss Blue Brain Project and Human Brain Project, both terminated last year after years of expensive research, which sought to digitally reconstruct entire brains, discovered next to nothing useful about intelligence or consciousness, except that a brain, even a mouse brain, is so complex that it overwhelms super computers? Ten years of the HBP made "no major contributions" to an understanding of the brain. We do not understand the mind or the brain. AI is a toy, a fake. What we have is a language model—an algorithm. Give it up. It is a joke.

Please stop building SPAs. Just because your pages all have the same header and footer, it does not mean you have a single page app. Over 90% of the SPA projects I’ve worked on should not have been SPAs (and were markedly worse because of it).

The Big Short stays wildly rewatchable. Fast, furious, and somehow makes finance thrilling—stacked cast firing on all cylinders.

Check out this cool shit

Dave Täht died yesterday. He was one of the unsung heroes of the Internet, and a close friend of mine who I will miss very badly. Dave, known on X as @mtaht because his birth name was Michael, was a true hacker of the old school who touched the lives of everybody using X. His work on mitigating bufferbloat improved practical TCP/IP performance tremendously, especially around video streaming and other applications requiring low latency. Without him, Netflix and similar services might still be plagued by glitches and stutters. I think we first met in 2001 near the peak of my Mr. Famous Guy years. Once, sometimes twice a year he'd come visit, carrying his guitar, and crash out in my basement for a week or so hacking on stuff. A lot of the central work on bufferbloat got done while I was figuratively looking over his shoulder. Curiously, we didn't collaborate directly very often. Different technical interests. All of the household cats loved him, though. My wife Cathy liked him. He was a funny, humble, down-to-earth man who liked to surf and play music, made friends wherever he went, charmed the pants off of a succession of improbably attractive women, and bore deteriorating health stoically. While I know him he went blind in one eye and was diagnosed with multiple sclerosis. He barely let it slow him down. Despite constantly griping in later years about being burned out on programming, he kept not only doing excellent work but bringing good work out of others, assembling teams of amazing collaborators to tackle problems lesser men would have considered intractable. There was a certain reserve about him though. I never knew why he changed his name. Nor did we ever talk about politics or the women in this life, nor quite why for so many years he lived as a nomad couch-surfer who was as likely to be found on a beach on Nicaragua or in quasi-residence at a university in Europe as anywhere in the US. My wife called him the International Man of Mystery, which title became a running joke among the three of us. None of that seemed important, because Dave lived for the work he did, except when he was trying to beat me at board games. He swore for years that he was eventually going to win against me and my wife and our Friday night gaming friends at Power Grid, and I truly wish he could get another couple shots at it. Dave should have been famous, and he should have been rich. If he had a cent for every dollar of value he generated in the world he probably could have bought the entire country of Nicaragua and had enough left over to finance a space program. He joked about wanting to do the latter, and I don't think he was actually joking. But he wasn't Elon Musk or me. Didn't want to run a business, and didn't want the crap that came from being Mr. Famous Guy, though he certainly understood why I took that on. Maybe he was wiser than me about avoiding the limelight, jury is still out. He got a lot of stuff done anyway, and that was the important part. I'll miss Dave a lot. I'll miss him showing up on my doorstep to charm my cats and tinker with my routers. I'll miss swapping war stories with him, eating Chinese food with him, and the grin on his face when he won a game. In the invisible college of people who made the Internet run, he was among the best of us. He said I inspired him, but I often thought he was a better and more selfless man than me. Ave atque vale, Dave.