Entrepreneur, intrapreneur, new-tech/digital senior exec, digital, strategy, startup mentor, modest "Expert Generalist", dots connector
Paris, France
Joined June 2007
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Louis van Proosdij retweeted
Who would believe Putin’s promises? Who would believe Trump’s security guarantees? Both men are serial liars and fantasists and have been consistently on the same side to dismember Ukraine for profit. It’s all garbage to delay necessary action by Europe and the US Congress.
🚨 The U.S. has asked Russia to accept U.S. and NATO security guarantees for Ukraine modeled on Articles 4 and 5.
A U.S. official tells reporters on a call: “What they would be getting would be effectively very similar to NATO.”
“I think right now there's definitely security guarantees that we'll discuss. Again, we'll see what President Trump decides if he wants to grant it. Getting a U.S. security guarantee is a really, really big deal. But, but that'll be up to him and President Zelensky to discuss.”
Louis van Proosdij retweeted
Re: PS6 etc... performance isn't holding games back. Outside of some high-end techniques nobody needs more performance. What we're suffering from is poor software, not slow hardware.
I've spent a lot of time profiling and optimising AAA games. You would be surprised how inefficient the vast majority of them are. Bad threading models, death by a thousand cuts due to OO, needless data dependencies, bad memory layout... the list goes on an on and every one is a software problem.
Louis van Proosdij retweeted
Saturation Testing. I use crapper and mutator to ensure that every expression in the system is covered by tests. If an expression is changed, one or more tests will fail.
This used to be impractical. We simply could not afford to create that many tests. We also could not afford to change so many tests when requirements changed. The burden was too high.
Now it’s trivial. The agents, under the lash of crapper and mutator, will write those tests and make them pass. And when requirement changed, they’ll write the new tests and change the old tests.
None of this proves that the system works. That’s up to humans to judge. Humans can do that with tools like gherkin, or they can use manual tests.
What the saturation tests provide is Semantic Stability. When the requirements change, and code has to be added and changed, those tests ensure that those changes do not inadvertently break unrelated parts of the system.
Louis van Proosdij retweeted
LLMs accumulate a lot of declarative knowledge.
That's how they can answer a large number of questions.
That's also why they require so many parameters and hence so much memory.
But one can replace the accumulation of knowledge by *understanding*
That what JEPA world models do.
That's one reason they can be useful with considerably less memory and training data than LLMs.
This paper merely shows that the underlying similarity structure of the data, whether text or image (e.g. co-occurence of words in text or objects in images) uniquely determines the shape of the representation point cloud, when the encoder is trained trained with a common anti-collapse criterion like SIGReg or VCReg (not by reconstruction).
Louis van Proosdij retweeted
Marine Le Pen has rejected President Zelensky’s invitation to visit Ukraine, stating that her “presidential campaign schedule is preventing her from travelling”. In 2017, Marine Le Pen travelled to Moscow less than four weeks before the first round of the presidential election.
Louis van Proosdij retweeted
I used to decide whether to post in Spanish or English depending on the topic. Now X automatically translates my posts, and the engagement comes in from more than 10 languages. Kudos to the X team for building a truly global community. Languages have always been both a way to communicate and a barrier. Now the barrier is gone.
Louis van Proosdij retweeted
Long post worth the read. I have a close friend who flies private jets. He flew Lear 60 for over 15 years and now flies a Gulfstream. This is a copy and paste of his response to me asking him if he thought Ice was the issue.
“We always fly in ridiculous cold temperatures.”
“Usually you get the bad ice when the temperatures are like 0 to negative 20. Believe it or not, there's a point where it gets too cold for ice. At negative 40, you pretty much can't get ice. Besides that, the airplane is equipped with hot wings and hot tail.”
“I flew the Lear 60 for like 15 years. It's a no joke airplane and probably the most dangerous airplane I've ever flown. It has a super critical wing. The airflow has to be perfect. When it gets into rough air and turbulence, it will easily stall. It has stalled on me at 41,000 feet just because we got into some turbulence. (On the way to Palm Beach as a matter of fact. ) we recovered and got her flying again around 30,000 ft. Scary
But here's the problem. This airplane has a terrible coffin corner. (At high altitudes) what that means is, you fly in a really narrow window where if you lose 20 knots, it stalls. And if you gain 20 knots, it goes into overspeed. The air goes supersonic over the wing and it goes into a high speed stall, or worse, a Mach tuck.
So if you stall, the normal recovery is to push the yoke forward to lower the nose and gain air speed again. At low altitude, you can push really hard and recover quickly. But in the 60... if you push hard, it will gain air speed and go into a high speed stall, it doesn't take much. It's very sensitive. The 60 has super short wings that don't make much lift. So then you high speed stall, and the computer is yelling at you... OVERSPEED! So then you pull back and enter a low speed stall. And you go back and forth trying to keep it in the air speed window.
This whole thing is pretty scary. And you should recover basically by using your finger tips using super small corrections. You can't over do it. If you try to muscle the recovery, she gets mad and will become unrecoverable. If she enters a mach tuck. You're done.”
“I taught the Lear 60 to other pilots and mentored them. I told them... this airplane has a soul and it's trying to kill you. Do not ever try to top the weather. Don't go over a thunderstorm. Go around it. If it means a half hour longer, then do it. Going over the thunderstorm will go into turbulence that you might not recover from.
These pilots went right over a thunderstorm. I think it stalled which caused them to drop down into the thunderstorm and ended up in mach tuck. They picked up so much speed that it ripped off the horizontal stabilizer. At that point... chuck Yeager can't fix it.
These same pilots did something similar a couple months ago. ATC got mad at them. They poked the bear one too many times.
This is not a beginner airplane. The Gulfstream would never do this. It has HUGE margins of error and won't stall like that. But then again... it's got HUGE wings. It's a pussy cat.
The Gulfstream is like driving a 4 wheeler. The Lear 60 is like riding a uni cycle.”
Louis van Proosdij retweeted
UnrealScript ignored null pointer access and skipped over the often, C/C++ crashes, C#/Java throw an exception, and Verse notes that the code may fail and requires you to wrap it in a conditional and handle it. This is our modern approach to catching as many problems as possible at compile time.
Louis van Proosdij retweeted
🇺🇸 J’ai vu passer plusieurs articles situant cette victoire en Caroline du Nord. Non, c’est bien en Caroline du Sud !
Et l’histoire est assez incroyable : Nancy Lacore, vice-amirale limogée par Pete Hegseth, remporte selon DDHQ un siège républicain détenu jusqu’ici par Nancy Mace, dans une circonscription que Trump avait gagnée avec 13 points d’avance en 2024.
La militaire écartée par Hegseth entre au Congrès en faisant notamment campagne contre sa gestion du Pentagone et la guerre en Iran.
Difficile d’imaginer un symbole plus cinglant de la débâcle républicaine !
#BREAKING: Navy admiral fired by Pete Hegseth flips Nancy Mace’s South Carolina seat #Midterms2026
thehill.com/homenews/campaig…
Louis van Proosdij retweeted
I can see why Epic have doubled down on AI and an accelerated route to a slimmed down and restructured UE6. There is a window of opportunity right now where agentic workflow focused tech has the ability to overtake the current engines. It's all about iteration time and how much can be automated and customised.
Existing tech stacks are going to struggle to restructure around the ability to drive *everything* from an agent. Full headless operation, comprehensive test coverage, smart asset pipelines and packaging, custom per-title tooling, bespoke optimised core systems. This isn't just driving the UI via MCP, this is designing around agent access at every level.
Building from the ground up, with agents as the primary customer, means you gain an automation advantage at every single point of contact. You're not going to be able to restructure that radically while keeping all the creaking old systems working in parallel... you're just burning time before the inevitable happens.
Louis van Proosdij retweeted
Exponentials are working in your favor.
Opus 5.5 is the first model that is good enough for game development and it is what ported UE5 to the web and hill climbed performance, memory, and download size of my little excavator project.
Cost per task / fixed level of intelligence has been going down by a factor of ~14 per year and that will probably accelerate. And that doesn't even factor in making the engine more efficient for AI to use.
Louis van Proosdij retweeted
Can Mistral Large 4 find a critical vulnerability, prove it and fix it? We tested it on a recent Django CVE.
133 agents map the code, hunt for flaws, test attack scenarios and confirm the bug. Then Le Chonk patches it.
Triage, repro, patch. Shown at 90x speed.
Louis van Proosdij retweeted
Imagine if Elon's $500 million had been spent on education or healthcare. Or the arts. Anything.
Louis van Proosdij retweeted
Crime without accountability is practice. Justice is not vengeance. When the Soviet Union collapsed, we let euphoria blind us to the need for the hard work of investigation and responsibility. Do not forgive, do not forget, and clean house.
Louis van Proosdij retweeted
Cyberattack on France’s national blood service (EFS) via its refrigeration contractor Coolworld. Hackers reset freezers keeping blood donor samples at -30°C to a target of 110°C. The thing that stopped it from destructive impact was an on-call technician who noticed the temperatures going up. Frozen plasma intended for transfusion was stored there too. Fortunately nothing was destroyed. This was a cyberattack on a sensitive layer of healthcare. From frozen peas to boiling plasma in three weeks...?
