<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: qsort</title><link>https://news.ycombinator.com/user?id=qsort</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 19 Aug 2026 14:42:17 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=qsort" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by qsort in "Python Polars Cheatsheet (based on our O'Reilly book)"]]></title><description><![CDATA[
<p>If your work is more focused on statistics or pure modeling, then I agree R wins hands down. The issue is that most projects have "unclean" parts where you have to gather data from multiple sources, use connectors for services, S3 buckets and whatnot; dealing with that mess is where Python really shines.<p>AI probably changes the equation to some extent, but I still believe I'd rather maintain a complicated data pipeline like that in Python rather than R.</p>
]]></description><pubDate>Tue, 18 Aug 2026 14:45:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=49346385</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49346385</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49346385</guid></item><item><title><![CDATA[New comment by qsort in "Linear algebra done right"]]></title><description><![CDATA[
<p>> His polemic against determinants is poorly motivated, misguided, and distracting.<p>What polemic? Defining the determinant as the unique multilinear alternating form satisfying certain properties is very normal (and in fact the only way that really makes sense for both finite- and infinite-dimensional vector spaces). There are zero unusual things with this book imo.</p>
]]></description><pubDate>Mon, 17 Aug 2026 07:55:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=49327672</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49327672</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49327672</guid></item><item><title><![CDATA[New comment by qsort in "Linear algebra done right"]]></title><description><![CDATA[
<p>You zoomers are making a list of linear algebra books and not citing Lang? Get off my lawn ;)</p>
]]></description><pubDate>Mon, 17 Aug 2026 07:49:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=49327634</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49327634</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49327634</guid></item><item><title><![CDATA[New comment by qsort in "Ancient Library – 1,060 Greek/Latin texts, click any word to parse it"]]></title><description><![CDATA[
<p>That's actually ok. In virtually all Latin dictionaries verbs are listed in the first singular person of the present indicative (e.g. you would find "sum" and not "esse"). It's just showing you the dictionary entry.</p>
]]></description><pubDate>Fri, 07 Aug 2026 20:15:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=49215676</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49215676</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49215676</guid></item><item><title><![CDATA[New comment by qsort in "Why Erdős Problems Are Falling to AI"]]></title><description><![CDATA[
<p>> When OpenAI posted about their 10 breakthroughs, I saw lots of career research mathematicians say things mostly along the lines of “I don’t understand any of this it’s way over my head”.<p>Huh?<p>Mathematics is an extremely wide subject, it's perfectly normal even for two professional mathematicians not to understand each other's work. Have you considered that maybe they just don't work in that area?<p>Are you implying OpenAI's paper (which was, by the way, edited by humans and provided Lean certificates for most of the proofs) is actually gibberish? That's flat-earth levels of conspiracy.</p>
]]></description><pubDate>Wed, 05 Aug 2026 13:47:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=49182856</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49182856</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49182856</guid></item><item><title><![CDATA[New comment by qsort in "Why Erdős Problems Are Falling to AI"]]></title><description><![CDATA[
<p>> I wonder if national, institutional, or otherwise "eccentric" sponsorships (encouraging a similar migrant-madman approach to academic cultivation) of some of the folks on HN wouldn't lead to meaningful discoveries in CS.<p>The problem is that Paul Erdos was eccentric but he was also Paul Erdos. I'm not saying you're implying that, but I feel it's a similar line of thinking to how popular culture often romanticizes autism and Asperger's because some very smart people are (allegedly) affected. The same group includes people who need 24/7 care.<p>Computer science at the frontier is as specialized and hard as mathematics, you need years of study to truly understand a field well enough to make meaningful contributions. You can try sponsoring me if you really want, but I don't think you'd be spending your money wisely in expectation.</p>
]]></description><pubDate>Wed, 05 Aug 2026 13:42:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=49182798</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49182798</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49182798</guid></item><item><title><![CDATA[New comment by qsort in "The AI Productivity Gap"]]></title><description><![CDATA[
<p>I've had similar conversations with a client recently while discussing estimates for a large project. Senior leadership has a mental model where AI makes everything X% faster, but that's very wrong. Some things get sped up by an insane amount and basically go to zero, some others not so much. Entirely new tasks emerge, such as directing agents to provide them the context they need, setting loops, etc.<p>It's a very O-ring problem.</p>
]]></description><pubDate>Mon, 03 Aug 2026 09:17:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=49153229</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49153229</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49153229</guid></item><item><title><![CDATA[New comment by qsort in "I don't recommend Tailwind CSS"]]></title><description><![CDATA[
<p>Counterpoint: the problem is actually HTML and most of webtech is increasingly elaborate cope mechanisms to deal with the original sin.</p>
]]></description><pubDate>Sun, 02 Aug 2026 08:40:51 +0000</pubDate><link>https://news.ycombinator.com/item?id=49142399</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49142399</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49142399</guid></item><item><title><![CDATA[New comment by qsort in "I don't recommend Tailwind CSS"]]></title><description><![CDATA[
<p>I'm not a frontend guy so take this with a pinch of salt, but for a few personal projects I've done my approach is now "ai pls generate css". I thought it would be inconsistent and broken, but if you tell it to care about accessibility and you're willing to clean up a bit it's not that bad and you end up with very compact transfers after minification.<p>I tend to like simpler/textual interfaces though, admittedly this won't be everyone's cup of tea.</p>
]]></description><pubDate>Sun, 02 Aug 2026 08:37:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=49142372</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49142372</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49142372</guid></item><item><title><![CDATA[New comment by qsort in "Google fixed more Chrome bugs in June than over the past two years, thanks to AI"]]></title><description><![CDATA[
<p>> guidance or missing context issue<p>I mean yeah, that's mostly what I'm saying?<p>The only parts where I would disagree are that capabilities are spiky, and also the fact that they're a bit prone to losing the forest for the trees without guidance (the macro/micro distinction). But yeah, by default I don't write code by hand.</p>
]]></description><pubDate>Sat, 01 Aug 2026 13:20:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=49134208</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49134208</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49134208</guid></item><item><title><![CDATA[New comment by qsort in "Google fixed more Chrome bugs in June than over the past two years, thanks to AI"]]></title><description><![CDATA[
<p>I'm not saying I don't get any use out of them, fwiw. In a lot of ways they write perfectly fine code, I'm just saying without some guidance at the macro-level they lose the forest for the trees, that's all.</p>
]]></description><pubDate>Fri, 31 Jul 2026 16:29:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=49125277</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49125277</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49125277</guid></item><item><title><![CDATA[New comment by qsort in "Google fixed more Chrome bugs in June than over the past two years, thanks to AI"]]></title><description><![CDATA[
<p>5.6 Sol on Codex, Opus 5 on Claude Code. (See sibling message, I'm not saying they're useless)</p>
]]></description><pubDate>Fri, 31 Jul 2026 16:23:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=49125175</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49125175</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49125175</guid></item><item><title><![CDATA[New comment by qsort in "Google fixed more Chrome bugs in June than over the past two years, thanks to AI"]]></title><description><![CDATA[
<p>Very hard to say anything definitive on this because it's a moving target, but last time I tried models still had a distinct sense of "consistently good, sometimes great at micro, bad at macro". Similar to how, even for relatively pedestrian CRUD, they'll do code that's objectively fine at the function/file/class level but can still make a mess if you don't supervise them at least at a high-level.</p>
]]></description><pubDate>Fri, 31 Jul 2026 09:50:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=49121079</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49121079</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49121079</guid></item><item><title><![CDATA[New comment by qsort in "Show HN: What should the GUI for AI agents look like?"]]></title><description><![CDATA[
<p>I completely agree with you that the chat interface is very undercooked and there's a big untapped space for agent-first interfaces, perhaps even replacing traditional desktop metaphors. You're spot on with your premise.<p>With that said, from the material you show in your homepage, it still seems like you're doing something very similar to OpenAI and Anthropic's first party apps?
I think it would help your pitch if you could show some task or workflow where your interface truly makes a difference; loading files and asking questions about them is a staple of most harnesses.</p>
]]></description><pubDate>Fri, 31 Jul 2026 07:08:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=49119952</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49119952</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49119952</guid></item><item><title><![CDATA[New comment by qsort in "Italy Blocks Reproductive Health Websites Women on Web and Women Help Women"]]></title><description><![CDATA[
<p>"Torture" is definitely hyperbolic, but <i>being forced to listen to the heartbeat of the fetus</i> is not something that's based on any kind of science or rational argument, it's quite transparently emotional manipulation.<p>I agree with you that it's a delicate issue, I really do. I'm also tired of taking infinite psychic damage trying to steel-man the arguments of people who are clearly not interested in operating at the level of steel.</p>
]]></description><pubDate>Tue, 28 Jul 2026 16:57:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=49086777</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49086777</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49086777</guid></item><item><title><![CDATA[New comment by qsort in "How real are real numbers? (2004)"]]></title><description><![CDATA[
<p>> The big Cantorian leap that we make is when we use the diagonal argument to argue that the rationals are countable.<p>Again, I don't think your position is indefensible, but this doesn't strike me as particularly convincing. The usual definition of R is that there exists a unique ordered complete Archimedean field up to isomorphism. We get the kitchen sink from the least upper bound property. As a constructivist you're gonna say that I don't get to define R <i>like that</i>, but you can't pretend it's done for no reason or that it buys nothing.<p>> I certainly learned about areas in geometry<p>And how were they defined? In elementary geometry we just sweep the question under the rug, usually...<p>If you get to say that being able to articulate why the measure of Q is 0 is unimportant and uninteresting, then I get to claim that the supposed problems with the usual definitions are also unimportant!<p>Saying that the non-constructive world leads to worse problems is a respectable position. Pretending the usual way of doing things is completely arbitrary isn't very honest.</p>
]]></description><pubDate>Mon, 27 Jul 2026 22:04:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=49076065</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49076065</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49076065</guid></item><item><title><![CDATA[New comment by qsort in "How real are real numbers? (2004)"]]></title><description><![CDATA[
<p>I don't think your position is silly, but this is not a great argument for it.<p>> But when we say things like "the rationals are discrete"<p>In the usual topology they are not?<p>> In the practical sense the rational numbers are quite continuous -- between any two rational numbers there are an infinite (unbounded) number of rational numbers -- there's no notion of a "leap" the way there is with the integers.<p>This characterization captures neither the intuitive nor the formal definition of continuity. You are effectively saying that Q is dense in R, but this is insufficient to prove, for example, the intermediate value theorem.<p>> measure theory, a theory which yields almost nothing of value except endless paradoxes<p>Come on now. The usual definition of concepts as basic as areas is tethered to measure theory. We say it's "obvious"  that the integral is the area under the curve (and it is: e.g. the Riemann integral is trivially the Peano-Jordan measure) but this only works because we're appealing to it.
You can route around it, but let's not pretend we're doing it for no reason.<p>I can see the elegance of a purely intuitionistic construction, but the "usual" real numbers are much closer to how we intuitively (no pun intended) work with numbers.</p>
]]></description><pubDate>Mon, 27 Jul 2026 21:07:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=49075537</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49075537</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49075537</guid></item><item><title><![CDATA[New comment by qsort in "The Dark Night of Mathematics"]]></title><description><![CDATA[
<p>Many of my friends are mathematicians, they are saying pretty much the same thing the article is saying. Unfortunately, even the "I have wondered if it is the express goal of these companies to make me kill myself" line I haven't heard for the first time today.<p>I assure you they're not in it for the money, I make more than they do and hardcore math research is definitely harder than whatever the fuck it is that I do.<p>I don't think that trying to be a little bit more understanding towards people who are obviously struggling would cost us that much.</p>
]]></description><pubDate>Sat, 25 Jul 2026 17:31:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=49049650</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=49049650</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49049650</guid></item><item><title><![CDATA[New comment by qsort in "Claude Is Not a Compiler"]]></title><description><![CDATA[
<p>> you're being bitchy<p>Honestly you're right, I'm sorry. I'm not having a great day and ended up venting online. Logging off.</p>
]]></description><pubDate>Tue, 21 Jul 2026 17:24:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=48995358</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=48995358</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48995358</guid></item><item><title><![CDATA[New comment by qsort in "Claude Is Not a Compiler"]]></title><description><![CDATA[
<p>Yes, did you read that section?  It's using different terminology but it's saying exactly what I'm saying (of course it does, it's elementary computer science).
There is no accepted definition of the word "algorithm": there wasn't one in 1967, there wasn't one in 1997 and there isn't one in 2026. There are models of computations we can prove to be equivalent to each other, but no commonly accepted definition that captures the way we use the word in normal speech.</p>
]]></description><pubDate>Tue, 21 Jul 2026 17:09:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=48995144</link><dc:creator>qsort</dc:creator><comments>https://news.ycombinator.com/item?id=48995144</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48995144</guid></item></channel></rss>