<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: kurthr</title><link>https://news.ycombinator.com/user?id=kurthr</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 20 Sep 2026 11:09:33 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=kurthr" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by kurthr in "Measure internet censorship"]]></title><description><![CDATA[
<p>It all depends on what you're censoring.<p>Is it a bad sign if CSAM, Personal (medical, financial, etc) Records, Snuff, and Malware/Ransomeware are censored? What about manufacture of WMDs, terrorism, hate speech? Free software, and copyrighted music? Historical records of genocide?</p>
]]></description><pubDate>Sun, 20 Sep 2026 02:33:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=49772041</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49772041</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49772041</guid></item><item><title><![CDATA[New comment by kurthr in "If math is more than proof, we need to better celebrate the rest of it"]]></title><description><![CDATA[
<p>No. It should have been Gowers' rather than Gower's.<p>The link is:<p><a href="https://gowers.wordpress.com/2026/09/17/why-i-didnt-sign-the-fields-medallists-letter/" rel="nofollow">https://gowers.wordpress.com/2026/09/17/why-i-didnt-sign-the...</a></p>
]]></description><pubDate>Sat, 19 Sep 2026 16:26:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=49767853</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49767853</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49767853</guid></item><item><title><![CDATA[New comment by kurthr in "If math is more than proof, we need to better celebrate the rest of it"]]></title><description><![CDATA[
<p>This goes in a necessary direction, from my personal take away of Gower's recent post on the subject.<p>Mathematics is suffering from  Goodhart's Law:<p>"When a measure becomes a target, it ceases to be a good measure."</p>
]]></description><pubDate>Sat, 19 Sep 2026 06:49:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=49764015</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49764015</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49764015</guid></item><item><title><![CDATA[New comment by kurthr in "Why I didn’t sign the Fields medallists’ letter"]]></title><description><![CDATA[
<p>Uh, John von Neuman didn't discover anything of significance at IAS? Just Hilbert Spaces and Computer Architecture, forget String Theory or Godel's Incompleteness, LOL!<p>New best prompt:<p>Write me a really cool math proof that will make me lots of money fast!<p>Why not let it just spit out the next token on its own without interference, if you can barely fool yourself into believing you understand what it proves... or hallucinates.</p>
]]></description><pubDate>Fri, 18 Sep 2026 00:30:48 +0000</pubDate><link>https://news.ycombinator.com/item?id=49748723</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49748723</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49748723</guid></item><item><title><![CDATA[New comment by kurthr in "Why I didn’t sign the Fields medallists’ letter"]]></title><description><![CDATA[
<p>As a sometime experimental scientist and occasional manufacturing engineer, this is hilarious!<p>Discoveries for abstract theory, entertainment, and perhaps regurgitating media, or even basic education can be done with the help of LLMs, but you can't make anything. You can't test anything. You aren't living in the real world. You'll just be lulled into the false belief that everything is simple and fine and beautiful, just as you always wanted, and as airplanes fall from the sky.<p>Hey, maybe it could work on Cosmology, if you gave it access to the data?<p>You are absolutely right!</p>
]]></description><pubDate>Fri, 18 Sep 2026 00:20:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=49748630</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49748630</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49748630</guid></item><item><title><![CDATA[New comment by kurthr in "Why I didn’t sign the Fields medallists’ letter"]]></title><description><![CDATA[
<p>So we should return to a renaissance world where only the wealthy or sponsored can do research, teach, and promote the wonders of creativity. Just hope the oligarchs give us prols enough gruel to create our own solipsistic knowledge no one else knows much less cares about, entertained by LLMs optimized to placate our desires and extract money/attention.</p>
]]></description><pubDate>Thu, 17 Sep 2026 18:04:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=49744385</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49744385</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49744385</guid></item><item><title><![CDATA[New comment by kurthr in "Why I didn’t sign the Fields medallists’ letter"]]></title><description><![CDATA[
<p>I don't think that the main issue either discussed by Gowers or the others who have signed the letter is simply that mathematicians should be paid "for merely understanding things". The main issue is outsourcing, laziness, and learned helplessness.<p>Outsourcing understanding, teaching, and proving maths to LLMs is just as dumb as outsourcing food production, manufacturing, or entertainment to a foreign power. It's not that we haven't already done most of those things in the pursuit of temporary profit optimization, but each of them has obviously bad impacts on both the individuals in society who perform those tasks, and on risks to everyone when that outsourcing fails for any reason.<p>As described, using LLMs is like navigating with GPS. It's fine when you're using it to optimize a path due to traffic conditions, but it can be deadly if you're flying a plane and suddenly don't have it, or any training to deal with that situation. That is where we're headed. I don't really have a take on signing the letter in particular, because as mentioned it seems a bit pointless. At the same time it also seems a bit pointless to spend $10s of millions proving a conjecture a few months sooner than a group of mathematicians already were. I don't imagine they were going to make millions doing it. The definition of material waste.<p>Perhaps it serves a temporary marketing win for OpenAI, or a medium term improvement in LLM performance on some productive output, but longer term it certainly risks ceding whole swaths of human endeavor to a tool we may not always have. Just as falling demand for farmers, or skilled machinists, or writers, or artists is not an immediate crisis, in the long term there is no one left to transfer the knowledge to the next generation, if something goes wrong.</p>
]]></description><pubDate>Thu, 17 Sep 2026 17:56:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=49744291</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49744291</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49744291</guid></item><item><title><![CDATA[New comment by kurthr in "I had Gemini train its own replacement for $9"]]></title><description><![CDATA[
<p>It's regularly the case that they are simply too long to fit, so editorializing is necessary. Either cutting them slightly short, removing descriptors, excess verbs etc, is better than chopping a word in half.</p>
]]></description><pubDate>Thu, 17 Sep 2026 15:10:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=49741967</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49741967</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49741967</guid></item><item><title><![CDATA[New comment by kurthr in "US confirms for first time it has deployed space weapons"]]></title><description><![CDATA[
<p>What a weird question, does that include Chiang Kai-shek? or limited to the "communist" party?<p>You don't remember the '79 Vietnam War? The Chinese one where they invaded North Vietnam with thousands tanks and 10s of thousands on both sides died over the course of months. Relations normalized in '91.<p><a href="https://en.wikipedia.org/wiki/Sino-Vietnamese_War" rel="nofollow">https://en.wikipedia.org/wiki/Sino-Vietnamese_War</a><p>China supported the Khmer Rouge, maybe Pol Pot is memorable?</p>
]]></description><pubDate>Wed, 16 Sep 2026 01:44:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49721186</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49721186</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49721186</guid></item><item><title><![CDATA[New comment by kurthr in "A Beginning for Mathematics"]]></title><description><![CDATA[
<p>The idea that most any modern "interesting" aspect of mathematics is going to be understood (or often even explained in enough detail to reveal what is interesting) in an hour is pretty rare. Either the student's aptitude, the tutorial, or the mathematics are unique. There is a reason that these are PhDs and not undergraduate HW sets.<p>I think we often delude ourselves as to how well we understand problems and their solutions. Some instructors even make you feel that you understand better than you do by pointing to a few approximations or simple solution spaces that obscure the larger complexity. Just looking in wonder at the many categories of three-body solutions (currently on hnews) is enough to remind me of this.</p>
]]></description><pubDate>Mon, 14 Sep 2026 18:16:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=49701442</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49701442</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49701442</guid></item><item><title><![CDATA[New comment by kurthr in "An atlas of periodic solutions to the three-body problem"]]></title><description><![CDATA[
<p>It's worth noting that the Sun-Earth-Moon "system" is much more complex than a three-body problem just due to momentum transfer from tides/bending. That's ignoring the effect of all of the other planets and asteroids or solar wind.<p>The 3BP is just the simplest chaotic system showing the limits of simple models and approximations.</p>
]]></description><pubDate>Mon, 14 Sep 2026 17:57:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=49701095</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49701095</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49701095</guid></item><item><title><![CDATA[New comment by kurthr in "Doomscrolling Ourselves to Death"]]></title><description><![CDATA[
<p>For those who would minimize the effects of social media on teens, I would highly recommend looking at this report of Meta's own research on the matter, published after it was revealed in discovery by States AGs.<p><a href="https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6069268" rel="nofollow">https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6069268</a><p>Or listen to just a few minutes of Patrick Boyle talking about them.<p><a href="https://youtu.be/IUMUJgjDvU0?list=TLPQMDYwOTIwMjbX3y5H-uRecw&t=621" rel="nofollow">https://youtu.be/IUMUJgjDvU0?list=TLPQMDYwOTIwMjbX3y5H-uRecw...</a></p>
]]></description><pubDate>Sun, 06 Sep 2026 21:29:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=49591162</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49591162</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49591162</guid></item><item><title><![CDATA[New comment by kurthr in "A/I shuts down"]]></title><description><![CDATA[
<p>If I have a public platform and refuse to sponsor/publish/platform your speech, that is my free speech right! You don't have the right to force me to speak your words. Only the government is prohibited (by 1st amendment) from censoring/limiting speech (that does not cause or promote violence or injury to others). There are also some restrictions and protections also offered to the press (eg libel and defamation) and common carriers, along with the abomination of the DMCA.<p>Personally, I don't consider paid speech to be free speech, and I don't consider corporations to by humans, but the supreme court does.<p>Remember, facts aren't real, there is no truth, and crime is legal (in the current "Justice" Dept).</p>
]]></description><pubDate>Sun, 06 Sep 2026 19:52:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=49590211</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49590211</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49590211</guid></item><item><title><![CDATA[New comment by kurthr in "'Old Person Smell'"]]></title><description><![CDATA[
<p>The Japanese have been obsessed with it since the study came out and have a variety of treatments (tannins in persimmons and greentea) though none have passed large scale clinical trials :)<p>I was fed a YT video about it recently so it must be part of the "moment".
Also a topic on menopause blogs from searching.<p><a href="https://asayujapan.com/blogs/asayu-blog/persimmon-soap-answer-nonenal-odor" rel="nofollow">https://asayujapan.com/blogs/asayu-blog/persimmon-soap-answe...</a><p><a href="https://miraiclinical.com/pages/why-this-ucla-trained-anti-aging-expert-swears-by-persimmon-products" rel="nofollow">https://miraiclinical.com/pages/why-this-ucla-trained-anti-a...</a></p>
]]></description><pubDate>Sun, 06 Sep 2026 14:12:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=49586725</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49586725</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49586725</guid></item><item><title><![CDATA[New comment by kurthr in "Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?"]]></title><description><![CDATA[
<p>So following this to the obvious conclusion, the NSA is responsible for the closure of the Straight of America, high tarrifs, dropping employment, and high gas prices?</p>
]]></description><pubDate>Fri, 04 Sep 2026 23:10:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49571268</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49571268</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49571268</guid></item><item><title><![CDATA[New comment by kurthr in "Fluorescent lamps (don't) have ears"]]></title><description><![CDATA[
<p>You modify tens of thousands of tubes and they are installed as they are replaced in the target facility.</p>
]]></description><pubDate>Wed, 02 Sep 2026 16:05:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=49538336</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49538336</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49538336</guid></item><item><title><![CDATA[New comment by kurthr in "The Snow/Leavis ‘two cultures’ clash"]]></title><description><![CDATA[
<p>I have to say that after reading other commentary about the 2015 paper this was based on, it seems to be far less relevant, even if it comes up very high in tehGoog search rankings.</p>
]]></description><pubDate>Tue, 01 Sep 2026 23:32:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=49529762</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49529762</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49529762</guid></item><item><title><![CDATA[FTC alleges Amazon illegally made $20B by rigging billions of ad auctions]]></title><description><![CDATA[
<p>Article URL: <a href="https://arstechnica.com/tech-policy/2026/09/ftc-alleges-amazon-illegally-made-20-billion-by-rigging-billions-of-ad-auctions/">https://arstechnica.com/tech-policy/2026/09/ftc-alleges-amazon-illegally-made-20-billion-by-rigging-billions-of-ad-auctions/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=49529685">https://news.ycombinator.com/item?id=49529685</a></p>
<p>Points: 73</p>
<p># Comments: 12</p>
]]></description><pubDate>Tue, 01 Sep 2026 23:23:25 +0000</pubDate><link>https://arstechnica.com/tech-policy/2026/09/ftc-alleges-amazon-illegally-made-20-billion-by-rigging-billions-of-ad-auctions/</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49529685</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49529685</guid></item><item><title><![CDATA[New comment by kurthr in "Fluorescent lamps (don't) have ears"]]></title><description><![CDATA[
<p>There is also the problem that that impedance mismatch between the gas in the tube and the glass surrounding it is huge so very little power is coupled. Interesting things would be for the tube length/resonance to be closer to the sound frequency of interest (eg 200-2000Hz) and close to critically damped. I have no idea if that's the case.<p>The second question is whether one can simply modify the tube/ballast in a visually imperceptible way. For example, one could insert an IC in the ballast that modulates the power draw of the lamp dependent on the ambient coupled acoustic/vibration power (eg possibly using the lamp as a vibrational microphone). Then pulse modulating the power draw of the lamp at a relatively low noise part of the power spectrum and within the band of the main power transformer filters. The lamps easily draw 40-80W so there's lots of room to work, and there are already Power Factor Correction implementations that use this simple technique to make lamp's inductive loads "look resistive".<p>So what's notable is that either the ballast of the lamp could be tampered with or one of the bulbs. Either one could allow transmission out along power lines, if standard transformers and capacitors are used for power delivery. This is how home powerline ethernet works and it transmits Gb/s rather than  the few kb/s needed to get voice out over the power lines.<p>Case in point. I saw a single Korean Samjung lamp interfere with AM radio stations (<1MHz) from 100 meters, by just clipping the power draw of a small fluorescent with a thyristor and oscillator at the ballast of a desk lamp to provide PFC so that thousands of lamps could be placed in huge open plan offices.</p>
]]></description><pubDate>Tue, 01 Sep 2026 22:56:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=49529410</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49529410</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49529410</guid></item><item><title><![CDATA[New comment by kurthr in "The Snow/Leavis ‘two cultures’ clash"]]></title><description><![CDATA[
<p>Exactly, what exactly is an English major going to do, if YA novels are the pinnacle of reading achievement? I'm baffled, and reading more about it, concerned.</p>
]]></description><pubDate>Mon, 31 Aug 2026 21:33:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=49515080</link><dc:creator>kurthr</dc:creator><comments>https://news.ycombinator.com/item?id=49515080</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49515080</guid></item></channel></rss>