<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: vector_spaces</title><link>https://news.ycombinator.com/user?id=vector_spaces</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 19 Apr 2026 12:39:20 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=vector_spaces" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by vector_spaces in "Good Sleep, Good Learning (2012)"]]></title><description><![CDATA[
<p>The comment I replied to suggested that people who are not fit or suffer from sleep disturbances are willfully unhappy. I don't feel it requires much thought or experience with the subject matter to see that this is false. There are many easy counterexamples which I'm sure you can come up with even if you are only barely determined<p>No one is disallowing the parent, you, or anyone else from discussing or thinking about complex phenomena. If someone is not putting in the work to engage with the material, others are free to point it out, and they do so at their leisure.<p>I hold others to a higher standard when the stakes are higher. Specifically, the post I commented on was (likely unintentionally)  not only factually wrong, but stigmatizing people with sleep disturbances. This is why my tone was dismissive and condescending. This was intentional.<p>I don't care to give examples because they are easy to find if you are asking in good faith. I even posted one in direct reply to TFA.</p>
]]></description><pubDate>Wed, 15 Apr 2026 18:48:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=47783469</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47783469</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47783469</guid></item><item><title><![CDATA[New comment by vector_spaces in "Good sleep, good learning, good life (2012)"]]></title><description><![CDATA[
<p>I have a somewhat rarely diagnosed circadian rhythm disorder called delayed sleep phase disorder. It is difficult to get diagnosed, especially as sleep clinics have been targets of private equity firms which convert them to CPAP shops which only diagnose sleep apnea and whose patients never interact with an MD. However it is likely to be underdiagnosed given the stigma around sleep challenges, at least in the sense that if you make any effort to get enough sleep with such a sleep disorder, you tend to be pegged as lazy, irresponsible, unreliable, etc<p>In any event, I agree with something implicit in the article, namely that most people have a degree of this, but the severity is variable. Mine has been fairly extreme, and while diagnosis enables disability accommodations, it is very fraught navigating most workplaces with this particular disability and you are essentially forced to choose between having any kind of upward mobility and getting enough sleep at night.<p>Thankfully the past two years or so I've been getting much more sleep since optimizing more for that. But anyway, if you are navigating sleep challenges you should get a sleep study, sure, but also be aware that your local sleep clinic is in all likelihood only nominally a sleep clinic. That is, it does not know how to diagnose and treat more complex sleep issues and probably doesn't want to.</p>
]]></description><pubDate>Wed, 15 Apr 2026 18:19:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=47783050</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47783050</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47783050</guid></item><item><title><![CDATA[New comment by vector_spaces in "Do you even need a database?"]]></title><description><![CDATA[
<p>I mean, if your atomic unit is a single file and you can tolerate simple consistency models, flat files are perfectly fine. There are many use cases that fit here comfortably where a whole database would be overkill</p>
]]></description><pubDate>Wed, 15 Apr 2026 17:54:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=47782726</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47782726</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47782726</guid></item><item><title><![CDATA[New comment by vector_spaces in "Good sleep, good learning, good life (2012)"]]></title><description><![CDATA[
<p>The reasons people do not get enough sleep or aren't fit are vastly more varied and complex compared with what you propose here.<p>>  I have observed this in myself so I wonder whether it is universally true<p>Growing up is realizing how infinitesimally narrow your particular slice of reality is.</p>
]]></description><pubDate>Wed, 15 Apr 2026 17:46:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=47782594</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47782594</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47782594</guid></item><item><title><![CDATA[New comment by vector_spaces in "The Closing of the Frontier"]]></title><description><![CDATA[
<p>OK, that's fair -- it sounds to me though that it's less about pithiness, or that this word might be too narrow. To me it sounds like you are talking about accessibility, in the sense that you'd like more care from writers in structuring their writing with consideration for legibility to the reader. In that I am with you</p>
]]></description><pubDate>Tue, 14 Apr 2026 00:05:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=47759568</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47759568</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47759568</guid></item><item><title><![CDATA[New comment by vector_spaces in "The Closing of the Frontier"]]></title><description><![CDATA[
<p>> pithiness is more important than ever<p>I apologize for getting stuck on your parenthetical but while pithiness is a fine aspiration in a North American business setting,  pithy reads generally can't exist without more detailed and nuanced long-form analyses, and the latter face a more dire existential threat. You are right that pithy [writing] is an important skill, as are slow and deliberative reading and writing of longer form work<p>I'm not claiming the original post is detailed or nuanced, to be clear</p>
]]></description><pubDate>Sun, 12 Apr 2026 20:31:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=47744147</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47744147</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47744147</guid></item><item><title><![CDATA[New comment by vector_spaces in "Advice to young people, the lies I tell myself (2024)"]]></title><description><![CDATA[
<p>I'm sorry to hate but it's extremely rich to write<p>> Do not send me anything longer than you would send to a crush. Some people email me six-paragraph essays about the time they saved a cat from a tree<p>...in a rambling piece that is not written with much consideration for the reader. I know this is just a blog post, ostensibly written for the author's younger sister, but if the author really wishes to position himself as someone to take advice from, he should make some effort to make his ideas digestible. I would suggest he include some transitions between ideas, bother to do some research to back up his claims instead of e.g. referring vaguely to an experiment he heard of supposedly involving "lucky" and "unlucky" people (truly sounds like science).<p>And for the love of God don't tell me right off the bat that you assume I'm going to keep reading, let alone read closely enough to "notice" anything about your writing. Yuck<p>Finally, while I know it's popular in Silicon Valley/coastal tech types to use the language of agency to justify being an uncharitable dick to people around you, the spirit of this particular stanza is helpful to deploy only in a small number of settings, generally low complexity environments where the stakes are low and there's a lack of psychological safety, and you desperately need the paycheck.<p>In any event the good ideas here are largely betrayed by the author's bad writing and overgeneralizing his experience working in coastal tech. Do yourself a favor and find other role models</p>
]]></description><pubDate>Sun, 05 Apr 2026 01:15:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=47645215</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47645215</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47645215</guid></item><item><title><![CDATA[New comment by vector_spaces in "Oracle slashes 30k jobs"]]></title><description><![CDATA[
<p>The comments on this subthread are a bit out of touch in a very coastal-tech way -- yes, Oracle is a monster, yes, their tech is garbage, yes, their products are awful.<p>But Oracle owns Cerner Health (now Oracle Health, but to most users it is still Cerner), i.e. 25% market share of the EHR space, and PeopleSoft, which you are painfully familiar with if you work for a bigcorp or anywhere in the public sector in North America. Their database product is very far from their only LOB.</p>
]]></description><pubDate>Tue, 31 Mar 2026 20:14:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=47592846</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47592846</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47592846</guid></item><item><title><![CDATA[New comment by vector_spaces in "Show HN: Twitch Roulette – Find live streamers who need views the most"]]></title><description><![CDATA[
<p>Maybe I'm naive, but my sense is not everyone streaming on Twitch  is trying to make a career out of it. Even for those that are -- everyone starts somewhere. Hopefully those that aren't successful on first brush notice and realize that it takes more than simply starting a stream to build a sticky audience.<p>Also, there are many people out there who lead fulfilling lives without families and partners. Either way, I don't think you should pity people so readily. At best it's somewhat condescending and missing much of the complexity and nuance of what it is to be a human person</p>
]]></description><pubDate>Sat, 28 Mar 2026 03:39:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=47551363</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47551363</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47551363</guid></item><item><title><![CDATA[New comment by vector_spaces in "Forget Flags and Scripts: Just Rename the File"]]></title><description><![CDATA[
<p>This strikes me more as a matter of taste, i.e. more art than something which can be provably wrong, or correct for that matter. The concerns you outlined might be concerns the author doesn't have to worry about for whatever reason -- if this fits neatly and seamlessly into their existing workflows then that's great, and I for one appreciate learning about other peoples' approaches like this even if they don't immediately work for me<p>IMV it's a clever trick, and like you my instinct is that if I attempted to integrate this into my own workflows, I would endure some sort of hardship down the line but it's not immediately obvious when or how. Or maybe for certain things it would be fine and less painful than other options, like other similarly clever tricks I felt uneasy about at first</p>
]]></description><pubDate>Wed, 18 Mar 2026 06:15:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=47422119</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47422119</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47422119</guid></item><item><title><![CDATA[New comment by vector_spaces in "Warn about PyPy being unmaintained"]]></title><description><![CDATA[
<p>PyPy is a JIT-compiled implementation of a language called RPython which is a restricted subset of Python. It does not and has never attempted to implement Python or replace your CPython interpreter for most intents and purposes. CPython is the official reference implementation of the Python language and what you probably use if you write Python code and don't understand the difference between a programming language and its implementations (which is fine)</p>
]]></description><pubDate>Sun, 08 Mar 2026 18:09:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=47299517</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47299517</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47299517</guid></item><item><title><![CDATA[New comment by vector_spaces in "Why No AI Games?"]]></title><description><![CDATA[
<p>There are a few companies doing this already -- I think AI Dungeon was one of the first movers in this space. I don't know how it is as a user, though</p>
]]></description><pubDate>Tue, 03 Mar 2026 17:18:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47235575</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47235575</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47235575</guid></item><item><title><![CDATA[New comment by vector_spaces in "Notes on Lagrange Interpolating Polynomials"]]></title><description><![CDATA[
<p>Every polynomial interpolates itself -- meaning that you can often apply this interpolation procedure to your favorite/nemesis polynomial or equivalently rewrite your polynomial of interest in this Lagrange basis, and see if the coefficients lead you anywhere. This is especially helpful in proving polynomial inequalities. For instance, Chebyshev polynomials T_n enjoy an alternation property over their extremal points -- so in the Lagrange basis, in many problems (e.g. Markov type inequalities) they emerge as the extremal case in the triangle inequality.<p>My beef with this approach is that it is a little unsatisfying in the sense that it sort of feels like we "got lucky". That is, it highlights this special feature (alternation) while burying the interesting structure that leads to such polynomials being extremal in these problems, as can be seen if you attempt certain seemingly trivial extensions of classical inequalities -- but nevertheless it's an important trick in extremal polynomial theory and approximation more broadly</p>
]]></description><pubDate>Mon, 02 Mar 2026 19:18:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=47222717</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47222717</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47222717</guid></item><item><title><![CDATA[New comment by vector_spaces in "How to talk to anyone and why you should"]]></title><description><![CDATA[
<p>Yes, there is a pervasive anxiety around strangers and impromptu socializing among younger millennials and Gen Z particularly in North America and parts of Europe, and across age groups in certain subcultures. There are lots of causes for this, but this phenomenon is neither as entrenched nor as universal as you might think and the dangers are basically infinitesimal (zero for all intents and purposes). If you are respectful and mindful of how you engage, the overwhelming majority of people will at worst ignore you. Which sucks, yes, but more than likely they won't even do that, i.e. they'll probably reciprocate<p>I agree re the pretext scenarios disappearing and re neurodivergence adding extra challenges.<p>RE the former: there are lots more of these pretext scenarios than you might realize<p>RE the latter, I realize it's not your point but for what it's worth, you won't really be able to tell in most cases that someone on the street or wherever is or isn't nd. Meaning: there's a good chance that the person you are talking to is nd themselves. Lots of us are pros at masking<p>In general though i would say to be careful when generalizing about human behavior in a way that causes you to implement and enforce rules / limitations on your own behavior in response. This is unavoidable, right? And yes, there's often an nd component to this. But especially as you get older, these can start to calcify and limit you in increasingly destructive ways</p>
]]></description><pubDate>Sun, 01 Mar 2026 23:26:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=47211929</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47211929</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47211929</guid></item><item><title><![CDATA[New comment by vector_spaces in "How to talk to anyone and why you should"]]></title><description><![CDATA[
<p>Letting curiosity be the motivator behind starting these conversations and cultivating curiosity more broadly can help -- or at least I have found it to be helpful in making initiating feel less forced. I wonder about people's jobs or the reasons they are visiting a place or what they think about what's happening nearby, or just generally who they are.<p>One antipattern I've encountered with this approach tho is that sometimes anxious people will exhaust their conversation partners with a battery of questions. Even if thoughtful, this can sometimes have the effect of exhausting your partner, and tends to keep the conversation steered away from actual connection. YMMV, but either way be mindful and make it a point to share yourself</p>
]]></description><pubDate>Sun, 01 Mar 2026 23:07:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47211749</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=47211749</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47211749</guid></item><item><title><![CDATA[Outside, Dungeon, Town: Integrating the Three Places in Videogames (2024)]]></title><description><![CDATA[
<p>Article URL: <a href="https://keithburgun.net/outside-dungeon-town-integrating-the-three-places-in-videogames/">https://keithburgun.net/outside-dungeon-town-integrating-the-three-places-in-videogames/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=46428154">https://news.ycombinator.com/item?id=46428154</a></p>
<p>Points: 118</p>
<p># Comments: 67</p>
]]></description><pubDate>Tue, 30 Dec 2025 00:54:34 +0000</pubDate><link>https://keithburgun.net/outside-dungeon-town-integrating-the-three-places-in-videogames/</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=46428154</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46428154</guid></item><item><title><![CDATA[New comment by vector_spaces in "Show HN: Exploring Mathematics with Python"]]></title><description><![CDATA[
<p>> If MAA does not understand that there is huge market for Mathematics targeted towards Computer Programmers, they are just dumb.<p>Presumably a large math textbook publisher that has been publishing math books for literally one hundred years is very tapped into what books likely will and won't sell. I find it unlikely that a layperson where it concerns math book publishing would have some unique insight that MAA does not have. Even if there is a substantial enough market, there are likely unique considerations that MAA is beholden to which we aren't privy to<p>I don't know what the calculus is like to get an extended version of an existing book published by another publisher, but Dover's Aurora series consists of modern original texts as opposed to their usual republications of classic out of print texts -- this is how Emily Riehl had her "Category Theory in Context" published</p>
]]></description><pubDate>Thu, 25 Dec 2025 21:52:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=46387281</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=46387281</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46387281</guid></item><item><title><![CDATA[New comment by vector_spaces in "Kroger acknowledges that its bet on robotics went too far"]]></title><description><![CDATA[
<p>I worked in this business for over 15 years on the tech and business sides and I can say that the traditional VC-funded startup regime is fundamentally incompatible with the basic realities of the food industry. What is sort of funny about it is that in many areas there are local companies that have been around for many years doing this fantastically. As other commenters pointed out, this is essentially the milkman model.<p>There are a number of extremely difficult problems that are definitionally insurmountable on the timescales that VC operates -- paramount among them being the establishment of trust and mutualistic relationships with your vendors/stores, customers, and employees.<p>You are right that there is such a space, it just won't happen in the context of a startup taking VC cash.</p>
]]></description><pubDate>Tue, 09 Dec 2025 18:10:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=46208324</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=46208324</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46208324</guid></item><item><title><![CDATA[New comment by vector_spaces in "Launch HN: Phind 3 (YC S22) – Every answer is a mini-app"]]></title><description><![CDATA[
<p>OK, I've had a chance to play with it in earnest.<p>First: my sense is that for most use cases, this will begin to feel gimmicky rather quickly and that you will do better by specializing rather than positioning yourself next to ChatGPT, which answers my questions without too much additional ceremony.<p>If you have any diehard users, I suspect they will cluster around very particular use cases, say business users trying to create quick internal tools, users who want to generate a quick app on mobile, scientists that want quick apps to validate data. Focusing on those clusters (your actual ones, not these specific examples) and building something optimized for their use cases seems likelier to be a stronger long term play for you<p>Secondly, I asked it to prove a theorem, and it gave me a link to a proof. This is fine, since LLM generated math proofs are a bit of a mess, but I was surprised that it didn't offer any visualizations or anything further. I then asked it for numerical experiments that support the conjecture, and it just showed me some very generic code and print statements for a completely different problem, unrelated to what I asked about. Not very compelling<p>Finally, and least important really: please stop submitting my messages when I hit return/enter! Many of us like to send more complex multi-line queries to LLMs<p>Good luck</p>
]]></description><pubDate>Wed, 03 Dec 2025 18:36:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=46138182</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=46138182</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46138182</guid></item><item><title><![CDATA[New comment by vector_spaces in "Launch HN: Phind 3 (YC S22) – Every answer is a mini-app"]]></title><description><![CDATA[
<p>It seems to work except when I connect to my work VPN, which is very permissive -- I haven't observed it to break anything else</p>
]]></description><pubDate>Wed, 03 Dec 2025 18:12:51 +0000</pubDate><link>https://news.ycombinator.com/item?id=46137884</link><dc:creator>vector_spaces</dc:creator><comments>https://news.ycombinator.com/item?id=46137884</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46137884</guid></item></channel></rss>