<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: jakobnissen</title><link>https://news.ycombinator.com/user?id=jakobnissen</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Fri, 17 Apr 2026 08:05:23 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jakobnissen" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jakobnissen in "Anthropic downgraded cache TTL on March 6th"]]></title><description><![CDATA[
<p>Yeah I’ve seen this too. It’s difficult for me to tell if the complaints are due to a legitimate undisclosed nerf of Claude, or whether it’s just the initial awe of Opus 4.6 fading and people increasingly noticing its mistakes.</p>
]]></description><pubDate>Sun, 12 Apr 2026 09:12:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47737536</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47737536</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47737536</guid></item><item><title><![CDATA[New comment by jakobnissen in "Python: The Optimization Ladder"]]></title><description><![CDATA[
<p>I have used Julia for my main language for years. Yes, it really does solve the two language problem. It really is as fast as C and as expressive as Python.<p>It then gives you a bunch of new problems. First and foremost that you now work in a niche language with fewer packages and fewer people who can maintain the code. Then you get the huge JIT latency. And deployment issues. And lack of static tooling which Rust and Python have.<p>For me, as a research software engineer writing performance sensitive code, those tradeoffs are worth it. For most people, it probably isn’t. But if you’re the kind of person who cares about the Python optimization ladder, you should look into Julia. It’s how I got hooked.</p>
]]></description><pubDate>Sat, 14 Mar 2026 20:24:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=47380797</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47380797</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47380797</guid></item><item><title><![CDATA[New comment by jakobnissen in "Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)"]]></title><description><![CDATA[
<p>China is not - Chinas coal consumption is stagnating with about zero growth from 2024 to 2025.<p>China is far more serious than the EU about the green transition. Despite being poorer than the poorest EU country they are dominating renewable deployment.<p>I think that attitude is poorly informed whataboutism.</p>
]]></description><pubDate>Mon, 09 Mar 2026 13:30:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=47308822</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47308822</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47308822</guid></item><item><title><![CDATA[New comment by jakobnissen in "Labor market impacts of AI: A new measure and early evidence"]]></title><description><![CDATA[
<p>Juniors are not as capable of delegating to AI as seniors are. Delegation to AI requires code review, catching the AI when it doesn’t follow good engineering practices, and catching the AI in semantic mistakes due to the AIs lack of broader context. Those things are all hard for juniors.</p>
]]></description><pubDate>Fri, 06 Mar 2026 06:21:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47271578</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47271578</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47271578</guid></item><item><title><![CDATA[New comment by jakobnissen in "AIs can't stop recommending nuclear strikes in war game simulations"]]></title><description><![CDATA[
<p>Would they really be intercepted though? IIUC, no country on Earth has an appreciable number of antiballistic missiles, and the success rate isn’t great.</p>
]]></description><pubDate>Wed, 25 Feb 2026 20:35:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=47157477</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47157477</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47157477</guid></item><item><title><![CDATA[New comment by jakobnissen in "Show HN: A physically-based GPU ray tracer written in Julia"]]></title><description><![CDATA[
<p>Nope. Funnily enough no one can agree on why - if you ask five people, you get six answers.<p>My own take is that Julia didn’t since the two language problem as much as was defeated by it.<p>Julia didn’t attract the high-level Python data science crowd because of Julia’s latency issue, lack of package ecosystem, and the inconveniences that a high performance compiled language incurs, such as having parametric containers.<p>The research software engineer crowds didn’t buy in because Julia has no interfaces or automatically checkable behavior, poor static tooling, imprecise semantics which is hard to build abstraction on, and a complex performance model that makes it hard to ensure speed, and is hard to deploy.<p>So, where they tried to make a language that can span the gap, they succeeded in making a language that works for neither, and which no-one wants.<p>I like the language. But after having used it for eight years, I find it increasingly hard to argue against the point that it’s better to choose Rust for software engineering and Python for scripting.<p>Edit: I should say: I used it for eight years because it IS fine for my specific niche: High performance research software engineering. Where I care neither about the convenience of Python, nor need to write truly robust and maintainable code. Where my choice of language was personal and I didn’t need to convince a team of coworkers.</p>
]]></description><pubDate>Fri, 20 Feb 2026 09:18:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=47085586</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47085586</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47085586</guid></item><item><title><![CDATA[New comment by jakobnissen in "European Tech Alternatives"]]></title><description><![CDATA[
<p>But I can move freely to Germany and get employed there as an EU citizen. Or, my competitors in the job market do, leaving more jobs for men And taxes pain in Germany also goes to the common EU budget. So the success of a German company also benefits me in another EU country.<p>Isn’t the relationship exactly the same as a company in my country, but another town? I could also gripe that jobs in that other town will not pay my municipality’s taxes.</p>
]]></description><pubDate>Thu, 19 Feb 2026 15:20:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=47074737</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47074737</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47074737</guid></item><item><title><![CDATA[New comment by jakobnissen in "America Isn't Ready for What AI Will Do to Jobs"]]></title><description><![CDATA[
<p>That is because The Atlantic is not a monolithic hive mind, but employs journalists of different persuasions, who each cover their story from their own world view.
So what you’re seeing is not The Atlantic being hypocritical, or flip floppy, but them covering the same topic from multiple points of view.</p>
]]></description><pubDate>Sun, 15 Feb 2026 08:37:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=47022055</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47022055</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47022055</guid></item><item><title><![CDATA[New comment by jakobnissen in "I'm not worried about AI job loss"]]></title><description><![CDATA[
<p>It's more like automated, industrial stuff is cheap, while land and human labor is expensive (and thank God for that!)<p>Some old stuff is now cheap: Grain, oils, clothes, steel, heating, electricity and books, for example.</p>
]]></description><pubDate>Sat, 14 Feb 2026 09:38:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=47013121</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=47013121</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47013121</guid></item><item><title><![CDATA[New comment by jakobnissen in "Something Big Is Happening"]]></title><description><![CDATA[
<p>If you use Claude Code, it will take you half a day to learn to use Codex, and like 30 minutes to start being productive in it. The switching cost is almost zero. Just go test out GPT 5.3, there is no reason not to</p>
]]></description><pubDate>Thu, 12 Feb 2026 19:19:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=46993643</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46993643</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46993643</guid></item><item><title><![CDATA[New comment by jakobnissen in "74% of European firms would fail without access to U.S. technology"]]></title><description><![CDATA[
<p>For the people comparing the dependence on US tech to US dependence on ASML: It’s not the same. US software providers can shut down their software services in an instant, paralyzing European societies.<p>If the US government forces them to, Microsoft and Google could refuse to serve Office 365, Microsoft cloud storage, Google Drive, Google mail, all online services that we use Google to log in with, Android, so nearly all smart phones, Windows and MacOS. Society would grind to a halt.<p>If Taiwan loses access to ASML, then Europe loses as much as Taiwan or US does, and the effects could take years to feel</p>
]]></description><pubDate>Tue, 10 Feb 2026 14:24:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=46960093</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46960093</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46960093</guid></item><item><title><![CDATA[New comment by jakobnissen in "Guinea worm on track to be 2nd eradicated human disease; only 10 cases in 2025"]]></title><description><![CDATA[
<p>No way that created the modern Islamic Iran. Carter supporter the shah. To the extend USA decided the outcome, it was by supporting the shah for too long, and for the US role in the 1953 coup.
But IMO the USa played third fiddle in that story, this was between Ruholla and the shah</p>
]]></description><pubDate>Thu, 05 Feb 2026 07:07:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=46896635</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46896635</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46896635</guid></item><item><title><![CDATA[New comment by jakobnissen in "Data Processing Benchmark Featuring Rust, Go, Swift, Zig, Julia etc."]]></title><description><![CDATA[
<p>The fact that Julia “highly optimized” is 30x faster than the normal Julia implementation, yet still fails to reach for some pretty obvious optimizations, and uses a joke package called “SuperDataStructures” tells me that maybe this benchmark shouldn’t be taken all that seriously.<p>Benchmarks like this can still be fun and informative</p>
]]></description><pubDate>Sun, 01 Feb 2026 09:15:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=46844742</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46844742</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46844742</guid></item><item><title><![CDATA[New comment by jakobnissen in "Poland's Economy Set to Enter Global Top Following Another Strong Year"]]></title><description><![CDATA[
<p>When we pay aid to poor countries and they remain poor, we gripe. When we subsidize poor countries and they get rich, we also gripe.<p>I for one am happy to see what the Poles have achieved since independence, and proud to have supported them.<p>I mean, isn’t this exactly the European project working as intended? A strong market economy, a democracy (if they can keep it so), a strong ally and partner, and a bulwark against Russian aggression. What could you possibly find more worthy to invest in than that?</p>
]]></description><pubDate>Sat, 31 Jan 2026 22:16:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=46841453</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46841453</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46841453</guid></item><item><title><![CDATA[New comment by jakobnissen in "San Francisco Graffiti"]]></title><description><![CDATA[
<p>Sure there is. You can go around beating random people op. Really gets your juices flowing!<p>I mean, since we’re apparently endorsing crime now.</p>
]]></description><pubDate>Tue, 27 Jan 2026 16:22:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=46782075</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46782075</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46782075</guid></item><item><title><![CDATA[New comment by jakobnissen in "San Francisco Graffiti"]]></title><description><![CDATA[
<p>Oh I disagree completely. Precisely because city spaces are more shared, vandalism, including graffiti, is Mitch more destructive in cities.<p>It really undermines the sense of community when vandals deface public spaces and community centers and apartment blocks.</p>
]]></description><pubDate>Mon, 26 Jan 2026 21:01:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=46771470</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46771470</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46771470</guid></item><item><title><![CDATA[New comment by jakobnissen in "Swedish Alecta has sold off an estimated $8B of US Treasury Bonds"]]></title><description><![CDATA[
<p>A brief search suggests this is around 1/4000th of the total US treasury market, so if this has any significance at all, it's symbolic.</p>
]]></description><pubDate>Wed, 21 Jan 2026 17:41:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=46708822</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46708822</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46708822</guid></item><item><title><![CDATA[New comment by jakobnissen in "US electricity demand surged in 2025 – solar handled 61% of it"]]></title><description><![CDATA[
<p>No, you are reading the article wrong. It is indeed 60% of new electricity generation that is from solar, not capacity</p>
]]></description><pubDate>Sat, 17 Jan 2026 13:36:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=46657962</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46657962</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46657962</guid></item><item><title><![CDATA[New comment by jakobnissen in "Trump says Venezuela’s Maduro captured after strikes"]]></title><description><![CDATA[
<p>You're trying to paint a picture that it's just the US and it's lackeys that claim the election was rigged.<p>In truth, we know that the election was neither free nor fair, with the government prosecuting and oppressing the opposition.<p>The Venezuelan opposition made a point of providing evidence that they won, most notably official tally sheets which collaborate that they won. The government did not produce evidence or even care to refute the opposition's claims.</p>
]]></description><pubDate>Sat, 03 Jan 2026 21:51:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=46482012</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46482012</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46482012</guid></item><item><title><![CDATA[New comment by jakobnissen in "Trump says Venezuela’s Maduro captured after strikes"]]></title><description><![CDATA[
<p>No - we know Maduro lost the election. That's knowledge, not opinion. And he stayed in power, while crushing the opposition. 
Maduro is a garden variety dictator. Spectacularly corrupt, jails his political opponents, having taken over the media and so on.</p>
]]></description><pubDate>Sat, 03 Jan 2026 17:18:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=46479123</link><dc:creator>jakobnissen</dc:creator><comments>https://news.ycombinator.com/item?id=46479123</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46479123</guid></item></channel></rss>