<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: xelxebar</title><link>https://news.ycombinator.com/user?id=xelxebar</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 28 Oct 2026 11:09:24 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=xelxebar" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by xelxebar in "Classification of Finite Simple Groups Formalized in Lean"]]></title><description><![CDATA[
<p>The really interesting aspect of this, IMHO, is discovering what theorem formulations combine together well as a whole. It's much akin to a software architecture problem.<p>Metamath has done quite a bit or primary research into this. Theorems often have a slightly non-standard, but more general form.<p>One can ask things like, "what is the equivalent of functional programming?" Or, "is there global state?" It's a perspective on reverse mathematics.</p>
]]></description><pubDate>Wed, 28 Oct 2026 04:12:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=50269278</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=50269278</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50269278</guid></item><item><title><![CDATA[New comment by xelxebar in "Ask HN: What are you reading?"]]></title><description><![CDATA[
<p>80年代SF傑作選.<p>Recently, I remembered a short SF story that I read back in high school and tracked it down, "Why I Left Harry's All-Night Hamburgers".<p>I find new wave SF to be really playful and enjoyable to read, not to mention that the experimentation with funky themes and formatting adds a lot of novelty. The above Japanese title is a nice collection of late era stories in this genre.</p>
]]></description><pubDate>Wed, 30 Sep 2026 01:39:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=49903339</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49903339</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49903339</guid></item><item><title><![CDATA[New comment by xelxebar in "Jensen Huang says the junior developer problem ends in two years"]]></title><description><![CDATA[
<p>Happy path coding is certainly the most fun.</p>
]]></description><pubDate>Thu, 24 Sep 2026 02:38:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=49825540</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49825540</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49825540</guid></item><item><title><![CDATA[New comment by xelxebar in "We are unconsciously becoming someone else"]]></title><description><![CDATA[
<p>Authenticity as a notion is a robust Western cultural more that I find confusing. The best parse I can get on it is this: developing an awareness and possibly a narrative around ways you behave with a subconscious expectation of social affirmation. Developing that awareness can certainly feel like a liberation of self-determination.<p>That can, also, undoubtedly be a powerful tool in overcoming cultural brainwashing of sorts, but I think the knife cuts both ways. The "authentic self" term makes it sound ontologically real and suggests that there is merit in searching for "finding oneself" when no ther motivating need exists. That road leads to pathological definition writing, IMHO.</p>
]]></description><pubDate>Sun, 20 Sep 2026 03:02:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=49772186</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49772186</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49772186</guid></item><item><title><![CDATA[New comment by xelxebar in "The Hugging Face Hack Wasn't What It Was Cracked Up to Be"]]></title><description><![CDATA[
<p>grok make good security? is lot of money and much time. grok not do? easy. maybe good PR too.<p>TIL my brain is an Olympic gymnast.<p>The incentive structures are clearly there. I think the case of intentional manufacture is definitely weaker, requiring the conjunction of more weakly-supported events.</p>
]]></description><pubDate>Sun, 20 Sep 2026 02:43:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=49772095</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49772095</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49772095</guid></item><item><title><![CDATA[New comment by xelxebar in "English: A vs. An"]]></title><description><![CDATA[
<p>The one that gets me is when people use "a" with initialisms, e.g. "She drives a RV," just sounds off to me. she can do her thing but I drive <i>an</i> RV.<p>That said, I think the former might be more common these days, so arguably the rules might just differ between written an spoken English in some dialects.</p>
]]></description><pubDate>Sun, 20 Sep 2026 02:28:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=49772009</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49772009</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49772009</guid></item><item><title><![CDATA[New comment by xelxebar in "Dramatic insider warnings over AI fall flat with some in Silicon Valley"]]></title><description><![CDATA[
<p>Thank you for the epistemic humility here. It's a breath of fresh air amongst the polarized declarations we seem to have upregulated amongst ourselves for whatever reason these days.</p>
]]></description><pubDate>Sun, 13 Sep 2026 09:35:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=49681921</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49681921</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49681921</guid></item><item><title><![CDATA[New comment by xelxebar in "Tree Calculus"]]></title><description><![CDATA[
<p>Surprisingly, there are combinatorial systems with just a single combinator[0]. Also, NAND along with a single axiom[0] can reproduce all of propositional calculus. By Curry-Howard-Labek, these are related facts and suggest that a universal tree likely exists in the tree calculus.<p>[0]:<a href="https://en.wikipedia.org/wiki/Iota_and_Jot" rel="nofollow">https://en.wikipedia.org/wiki/Iota_and_Jot</a><p>[1]:<a href="https://en.wikipedia.org/wiki/Nicod's_axiom" rel="nofollow">https://en.wikipedia.org/wiki/Nicod's_axiom</a></p>
]]></description><pubDate>Sun, 13 Sep 2026 02:09:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=49679246</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49679246</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49679246</guid></item><item><title><![CDATA[New comment by xelxebar in "The Death of Shame Is Tearing Us Apart"]]></title><description><![CDATA[
<p>Shame is a feeling, "decent person" is a moral characterization. The former might be part of an insentive structure leading to the latter.</p>
]]></description><pubDate>Fri, 11 Sep 2026 11:47:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=49656823</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49656823</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49656823</guid></item><item><title><![CDATA[New comment by xelxebar in "Show HN: What if the speed of light was 5 km/h?"]]></title><description><![CDATA[
<p>Thanks for the Niven reference. Neutron Star was a fun read. I'm currently working through a collection of 80s SF shorts[0]. It's an entertaining lens into the narratives mores of the time, and or own in contrast.<p>[0]:<a href="https://ci.nii.ac.jp/ncid/BB07948947" rel="nofollow">https://ci.nii.ac.jp/ncid/BB07948947</a></p>
]]></description><pubDate>Fri, 11 Sep 2026 10:03:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=49655931</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49655931</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49655931</guid></item><item><title><![CDATA[New comment by xelxebar in "I resigned from Anthropic today"]]></title><description><![CDATA[
<p>Heavier-than-air aircraft, yes. It is instructive to read actual contemporary arguments. Flighted birds seem to be limited in size well below human loading capacity; Helmholtz power-to-weight ratio calculations suggest that vultures are at about the size limit; birds are all muscle with very little relative carrying capacity; bird reflexes vastly outpace the reaction times available to a human operator; etc.<p>Please show us actual evidence from 1900 or earlier that human flight will be practical or even possible.<p>Birds are neither real evidence nor real at all[1].<p>[1]:<a href="https://en.wikipedia.org/wiki/Birds_Aren't_Real" rel="nofollow">https://en.wikipedia.org/wiki/Birds_Aren't_Real</a></p>
]]></description><pubDate>Thu, 10 Sep 2026 07:13:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=49639587</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49639587</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49639587</guid></item><item><title><![CDATA[New comment by xelxebar in "I resigned from Anthropic today"]]></title><description><![CDATA[
<p>Your call for clarity has merit, but I think you have backed yourself into a corner, honestly.<p>In 1900, there was no evidence of the kind you seek that lighter-than-air flight was possible. Good thing some people were foolish enough to ignore you then. Why you would cordon yourself off from the kind of reasoning that predicts legitimately new things, rather than just scaled up versions of the present?<p>Not to put too fine a point on it, every example you give is based in concrete evidence, some try to think through the implications farther than others, resulting in larger or smaller error bars around the conclusions.<p>Let me back up though. Maybe in the collaborative human effort here, we are better off having very concrete thinkers, like you seem to be, along with abstract thinkers like the "divorced-from-reality" Rationalists. Personally, I wish we had a stronger culture of collaboration and assuming good-faith and competence in our peers. In my experience, blanket dismissals are very rarely grounded in reality and mostly grounded in fears.</p>
]]></description><pubDate>Wed, 09 Sep 2026 08:50:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=49623366</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49623366</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49623366</guid></item><item><title><![CDATA[New comment by xelxebar in "Tao: Open math problems being non-renewably mined by AI"]]></title><description><![CDATA[
<p>There is also a large incentive for OpenAI to fold user conversations into the training process. Proving this happened is unduly hard, and given that professionals are using frontier LLMs for daily work, such training would make it easier for labs to scoop said professionals.<p>I have seen private correspondence between one mathematician working on Navier-Stokes and OpenAI that makes it sound like OpenAI deliberately scooped this Navier-Stokes result. The alleged correspondence also contained veiled threats if said mathematician went public.</p>
]]></description><pubDate>Wed, 09 Sep 2026 00:49:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=49619291</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49619291</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49619291</guid></item><item><title><![CDATA[New comment by xelxebar in "The Overton Window of Food"]]></title><description><![CDATA[
<p>What about oats and an assortment of nuts? These go pretty well with cold milk or hot water alike, and you can flavor any which way if desired. Or are oats in the US also "fortified" with sugar?</p>
]]></description><pubDate>Thu, 03 Sep 2026 01:45:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=49545010</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49545010</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49545010</guid></item><item><title><![CDATA[New comment by xelxebar in "True Rate of Unemployment"]]></title><description><![CDATA[
<p>From a cursory read of their white paper, my impression is that LISEP is trying to quantify the sense that making a livable income is harder and more disparate than it used to be. IMHO, this should be read as a campaign to improve and add precision to a political narrative more than an indictment of existing statistics.<p>In particular, the BLS in the US reports 6 different measures of unemployment, U-1 through U-6, each measuring something slightly different. LISEP adds another to the bunch; this is their operationalization:<p>> LISEP’s definition of “True” employment or unemployment accepts the U-3 rate for comparison purposes, but modifies it by adopting two important stipulations. The first stipulation deals with the workweek. To be employed for the purposes of LISEP’s true employment concept, an individual must either have a full-time job (35+ hours per week) or have a part-time job but no desire to be full-time (e.g., students). The second stipulation is that an individual must earn at least $20,000 annually. This annual wage is adjusted for inflation, calculated in January 2020 dollars.<p>The white paper gives their rationale for the $20,000 cutoff. The "true" name here is marketing, which might honestly be the right play here. My gut says that we already have better statistics than TRU but they smell dry and academic. I would be interested to hear more about their political strategy and philosophy.<p>FWIW, the institute looks to be chaired by <a href="https://en.wikipedia.org/wiki/Eugene_Ludwig" rel="nofollow">https://en.wikipedia.org/wiki/Eugene_Ludwig</a>.</p>
]]></description><pubDate>Wed, 02 Sep 2026 06:28:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=49532471</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49532471</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49532471</guid></item><item><title><![CDATA[New comment by xelxebar in "Bhartrhari's Paradox"]]></title><description><![CDATA[
<p>It's because most real numbers are uncomputable. That means, most of the time, the only way to check that two numbers (i.e. names) are the same is to spend infinite time looking at all their infinite digits.<p>An unknowable name isn't a very good name, IMHO.</p>
]]></description><pubDate>Fri, 28 Aug 2026 23:35:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=49485472</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49485472</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49485472</guid></item><item><title><![CDATA[New comment by xelxebar in "Tell HN: PayPal blocks GrapheneOS"]]></title><description><![CDATA[
<p>This is interesting. You're gesturing at the idea that individual security practices can be at odds with those needed for group security. I'll be pondering on this.</p>
]]></description><pubDate>Thu, 27 Aug 2026 23:16:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=49472501</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49472501</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49472501</guid></item><item><title><![CDATA[New comment by xelxebar in "Two German airport workers die of malaria after 'mosquito arrives on plane'"]]></title><description><![CDATA[
<p>> 2. Risk is convex, so every risk increase by measures not taken is multiplicative, not additive.<p>Wait. Is this true? f(x) = x^2 is convex but f(x+d) = f(x) + O(x). Are you saying that human risk assessment is estimated to be exponential?</p>
]]></description><pubDate>Thu, 27 Aug 2026 22:49:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=49472280</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49472280</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49472280</guid></item><item><title><![CDATA[New comment by xelxebar in "Humanity has the debate about AI consciousness backwards"]]></title><description><![CDATA[
<p>I believe you completely miss the point.<p>The interesting observation is this: when we judge something to have subjective experience, we are invoking moral intuitions. There is no objective measure we can perform (yet?), and it's not even clear whether such a measure makes sense. You may disagree, but this is still a central debate in serious discussion on "hard" consciousness.<p>I would say that your entire argument just begs the question by implicitly assuming consciousness to have real, independent existence. Does <i>elan vital </i>(the substance that provides the motive force of life) have mass? You're saying that this is a theorem; the article questions the entire premise.<p>> The cogito argument is about thinking, not qualia.<p>Bizzare. "If it rains, the car will get wet." Is this a statement, as you say, <i>about rain</i>? Descarte tries to prove the existence of his God and states an axiom. The atecedent "I think" seems to be about thinking, whatever that may mean, and "I am" makes an existential claim based on subjective experience... or something. Who knows why Descarte believed <i>cogito ergo sum</i> to be solid starting ground.<p>IMHO, your rebuttal here reads as little more than a complaint that something disagrees with your personal assumptions about the world.<p>You clearly got me riled up just as much as you did against OP, so thanks for the elan vital!</p>
]]></description><pubDate>Thu, 27 Aug 2026 22:39:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=49472204</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49472204</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49472204</guid></item><item><title><![CDATA[New comment by xelxebar in "A Man Who Saw Humanity from Two Billion Years Away"]]></title><description><![CDATA[
<p>There is also a brilliant and ponderous film adaptation: <a href="https://www.youtube.com/watch?v=nqDBlBKlbDA" rel="nofollow">https://www.youtube.com/watch?v=nqDBlBKlbDA</a>. It is one of my favorites in the "sublime" genre.</p>
]]></description><pubDate>Wed, 26 Aug 2026 23:39:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=49457396</link><dc:creator>xelxebar</dc:creator><comments>https://news.ycombinator.com/item?id=49457396</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49457396</guid></item></channel></rss>