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jacobgorm

945 karma · joined February 23, 2013

CS PhD who invented live VM migration. In AI since 2016, founder at Vertigo.ai and Jamscape (exited to Dropbox)
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jacobgorm··on US announces new sanctions on top ICC figures
You can always hide in your own country, as long as you or the people who protect you are able to stay in power, but at least you cannot use the rest of the world as playground or shopping center. Sucks to be a rich kleptocrat and not be able to have a yacht in Nice or be able to take your wife shopping in London.
jacobgorm··on Hillock – Local neuro-symbolic memory engine running in <1.2GB VRAM
There is no memory overhead, in that everything resides on disk/in the sqlite database, and is read from there on demand. That said, sqlite for blob storage is a bit inefficient, so the next version will use tightly packed structs on disk. I also managed to finetune an embedding down to 96d, so in the coming version the storage for the index is getting close to parity with the size of the text being indexed.
jacobgorm··on Hillock – Local neuro-symbolic memory engine running in <1.2GB VRAM
Here is a project with similar goals (I am the main author), but using late interaction semantic search: https://github.com/dropbox/witchcraft
jacobgorm··on SpaceX to buy Cursor for $60B
I just uninstalled it FWIW.
jacobgorm··on SpaceX's president is floating a Tesla merger as the company begins trading
Seems very likely, related: https://electrek.co/2026/05/31/a-spacex-tesla-merger-could-t...
jacobgorm··on Freediving, Embodiment and Humanity – Joanna Rutkowska
Make sure you watch the Big Blue, in the original French (not US, has the wrong soundtrack) version, but with the original(!) English speech, not the dubbed-to-French version.
jacobgorm··on Sweden becomes a smoke-free country
Smoke free perhaps but not nicotine free by far. I live in Denmark and have a teenage son, he tells me that 90% of girls at his year are hooked on illegally imported and unregulated vapes, much stronger in nicotine than cigarettes, and in some cases loaded with fentanyl and other drugs. We have had the first couple of deaths of 15-year olds already.

Meanwhile, the parents' generation and politicians are looking at the declining cigarette sales (and declining tax revenues) and are busy declaring victory and self-congratulating, with no idea what is coming.

jacobgorm··on Removable batteries in smartphones will be mandatory in the EU starting in 2027
It is not that long ago that smartphones would die from moisture exposure if you left them in the bathroom while taking a shower. I had a girlfriend around 2001 who spent all her savings on a shiny new Nokia 8250, got drunk and barfed on her jacket. The phone was in the pocket, and the moisture from the wet jacket completely killed it, she cried about it for weeks. I also remember my mother dropping her iPhone 6 in the harbor while getting off a boat, it got picked up but was dead. Last year I was out hiking in the rain, and my aging (5+ years old) iPhone 11 got water inside it and started dying soon after (I'd been sailing/swimming with the phone and had exposed it to salt water, apparently that will wear down the seals if you do it enough.)

In other words, I absolutely see the need for waterproof phones, even for ordinary people doing ordinary things, and am never going to buy one that isn't.

jacobgorm··on 1.4 GW: battery storage at former Grohnde nuclear power plant
In Denmark, wind mills were initially quite popular, because locals owned them and benefited. The iconic wind farm Middelgrunden on the waters outside of Copenhagen is 50% owned by a co-op.

https://www.middelgrunden.dk/

jacobgorm··on Rewriting Every Syscall in a Linux Binary at Load Time
Good point, an int3 is not going to be faster than a syscall, and if they implement the sandboxing policy in guest userspace is seems it would be quite easy to disable.
jacobgorm··on Rewriting Every Syscall in a Linux Binary at Load Time
I think the point here is optimizing for the common case, the untrusted code is still running inside a VM, so you can still trap malicious or corner cases using a more heavy-handed method. The blog post does mention "self-healing" of JIT-generated code for instance.

It is possible to restrict the call-flow graph to avoid the case you described, the canonical reference here is the CFI and XFI papers by Ulfar Erlingsson et.al. In XFI they/we did have a binary rewriter that tried to handle all the corner cases, but I wouldn't recommend going that deep, instead you should just patch the compiler (which funnily we couldn't do, because the MSVC source code was kept secret even inside MSFT, and GCC source code was strictly off-limits due to being GPL-radioactive...)

jacobgorm··on Tesla's supervised self-driving software gets Dutch okay, first in Europe
More like third in Europe after BMW and Ford, according to https://electrek.co/2026/04/10/tesla-fsd-supervised-approved...
jacobgorm··on [dead]
I have been developing local AI on Apple devices since 2019, and they already had great AI support via Accelerate and MPS back then. Contrast to the Windows DirectML fiasco, which was basically just finger-pointing between MS, Intel and AMD all saying “it works on my machine” for years, I would say that Apple was always far ahead and did invest where it actually mattered to developers and users.
jacobgorm··on Pi – A minimal terminal coding harness
Some of us never left the terminal. Welcome to the future.
jacobgorm··on Members-only Philly cop bar has been linked to two DUIs and a third crash
When I lived in the US I was surprised about how casually everyone treated DUI. In Northern Europe, where I am from, driving after drinking is socially unacceptable in Generation X and younger.
jacobgorm··on Halt and Catch Fire: TV’s best drama you’ve probably never heard of (2021)
The pilot episode was so lame I almost skipped this, but the rest is just stellar.
jacobgorm··on I fixed Windows native development
I’ve found that just installing LLVM, CMake and Ninja is enough to get started developing on Windows for most things C/C++.
jacobgorm··on Volvo EX60 Targets 400-Mile Range and Coffee-Stop Charging
It is produced in Sweden.
jacobgorm··on Danish pension fund divesting US Treasuries
PFA, the largest private Danish pension fund already started reducing exposure to USD and UST last year https://www.pfa.dk/news-archive/2026/01/19/10/21/pfa-anbefal...
jacobgorm··on I'm making a game engine based on dynamic signed distance fields (SDFs) [video]
GameGlobe from Haptico and Square Enix, the engine of which also powered Project Spark from Microsoft, also used an SDF engine. Former colleagues of mine built the tech in Copenhagen and I remember getting a super impressive demo back then. This was the first time I heard of SDFs.
jacobgorm··on Tesla's Germany Sales Down 72% from Their Peak
In Northern Europe we have lots of fast chargers now, and apart from Tesla, which is open to anyone with their app, none are tied to a particular car brand. I’ve never encountered problems fast-charging my BMWs. Most cars you can buy today have the option to pre-heat the battery, but it is possible that not all owners know how to activate that. The newer Renaults run on Google software, which is said to be very user friendly and good at route planning.
jacobgorm··on Tesla's Germany Sales Down 72% from Their Peak
At least in Denmark where I live, since Tesla started competing on cost a few years ago, and then the DOGE fiasco. It’s the car you get if you’re already a Tesla owner and hardcore believer, or just see a car as a means of transportation and buy purely on specs. The days when Teslas were status symbols are long gone. We can buy so many other interesting EVs here, for example I just had a friend who was an EV hater six months ago come by showing off his brand new Renault R5 today. That car has 10x more character than a TM3 and costs less even if he got it fully loaded. VAG has a very strong lineup of TMY competitors that combined are vastly outselling it, and so has Kia/Hyundai and Renault. Those with more money will go for BMW, Mercedes, Audi, or even Porsche. And then there are all the Chinese brands starting to make inroads. Most here see buying Chinese as less problematic than buying Musk.
jacobgorm··on Tesla's Germany Sales Down 72% from Their Peak
The cars now look generic and driving them will brand you as either the type of person who gets all their news from alt right social media or someone who just can’t afford buying from a more established car maker.
jacobgorm··on London–Calcutta bus service
1997 for me.
jacobgorm··on London–Calcutta bus service
I took that once from SF to NYC when in my twenties. Definitely recommend.
jacobgorm··on Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density
Apparently Nordic Nano is a spin out from the University of Tampere, and the CEO of Donut Labs seems to have his own money. I happened to spend three weeks in Tampere by accident 15 years ago, and I have no reason to believe that people there don’t know what they are doing. It is where Nokia was originally founded, and where the first GSM phone call was made.
jacobgorm··on Rob Pike goes nuclear over GenAI
I liked the way Red Hat thanked important contributors to open source prior to their IPO better https://www.sonarsource.com/blog/the-red-hat-ipo-experiment-...
jacobgorm··on CUDA Tile Open Sourced
Who would anyone want to pair a subpar language with a subpar ML framework?
jacobgorm··on The U.S. Is Funding Fewer Grants in Every Area of Science and Medicine
Not if you’re a vaccine skeptic and personal friends with the CDC director https://www.statnews.com/2025/12/18/cdc-grant-controversial-...
jacobgorm··on Danish postal service to stop delivering letters
Denmark has an official system for sending digital mail, which is how we receive letters from the government, bank statements, pay slips, and so on. Without this base load of paper mail, the economics of delivering paper mail stopped working.
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