<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: jltsiren</title><link>https://news.ycombinator.com/user?id=jltsiren</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 04 Nov 2026 08:50:12 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jltsiren" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jltsiren in "The AI Boom May Be Sowing Seeds of Another Financial Crisis"]]></title><description><![CDATA[
<p>High intelligence is overrated. Medieval knights didn't dominate the battlefield because they had the potential to become the best fighters. They dominated because they had access to weapons, armor, and horses, and because their social status and wealth let them focus on combat training.</p>
]]></description><pubDate>Tue, 03 Nov 2026 23:01:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=50359446</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50359446</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50359446</guid></item><item><title><![CDATA[New comment by jltsiren in "US boy names that became girl names and vice versa"]]></title><description><![CDATA[
<p>And virility literally means manliness or manhood, and by extension physical qualities ideally associated with men. Romans had another concept, virtue, for manly mental qualities. Ancient Greek "andreia" covered both aspects of manliness.<p>Andrea as a female name is similar to Carla or Caroline. Take a name that means something related to men (but no longer obviously so) and adjust it a bit to make it a female name. As a male name it just reflects changes in pronunciation over time.</p>
]]></description><pubDate>Tue, 03 Nov 2026 07:53:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=50349255</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50349255</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50349255</guid></item><item><title><![CDATA[New comment by jltsiren in "The U.S. Is Bullying Europe Like Never Before"]]></title><description><![CDATA[
<p>Playing chicken is always risky.<p>Declaring a no fly zone would have achieved nothing. Sending air forces to enforce it would have done something. But what happens if American fighter jets engage Russians over Ukraine, while Russian air defenses support their air forces from their side of the border? Would Americans let Russians launch SAMs with impunity, or would they invade Russia, showing the world that Putin's justification for the war was in fact correct?<p>Maybe Putin would have chickened out when American jets show up, but you can't know that for sure. Which means you should probably decide in advance you far you are willing to escalate before you chicken out yourself.</p>
]]></description><pubDate>Tue, 03 Nov 2026 05:15:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=50348369</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50348369</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50348369</guid></item><item><title><![CDATA[New comment by jltsiren in "The U.S. Is Bullying Europe Like Never Before"]]></title><description><![CDATA[
<p>The lack of economic dynamism is a consequence of demographics. When the population grows older, the society naturally shifts resources from building the future to sustaining the present. Which obviously sucks if you are part of the generation that would prefer building the future.<p>Everyone saw this coming decades ago. Immigration has been the only serious solution that has been proposed so far. Unfortunately many European countries are not very attractive to those immigrants who can afford to choose.</p>
]]></description><pubDate>Tue, 03 Nov 2026 03:07:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=50347534</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50347534</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50347534</guid></item><item><title><![CDATA[New comment by jltsiren in "US boy names that became girl names and vice versa"]]></title><description><![CDATA[
<p>She didn't get the suffix until her 20s. And it was not used to distinguish her from her mother (who was also a Queen Elizabeth) but from yet another Elizabeth who lived centuries earlier.</p>
]]></description><pubDate>Mon, 02 Nov 2026 22:23:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=50344794</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50344794</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50344794</guid></item><item><title><![CDATA[New comment by jltsiren in "Mathematics has changed. Let's act like it"]]></title><description><![CDATA[
<p>Once you start solving problems in practice, you are probably no longer interested in the simple clean versions of the problem theoreticians think about. For example, instead of trying to find the shortest common superstring, you may be doing phased genome assembly. The problem is no longer unambiguously defined. The constraints and assumptions evolve over time, as the problem space becomes better understood and the nature of the data changes. While algorithmic ideas often transfer from one problem subtype to another, everything needs to be tailored for the specific problem.</p>
]]></description><pubDate>Mon, 02 Nov 2026 08:35:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=50334384</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50334384</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50334384</guid></item><item><title><![CDATA[New comment by jltsiren in "Mathematics has changed. Let's act like it"]]></title><description><![CDATA[
<p>Breaking public key cryptosystems would be a better counterexample. Most NP-hard optimization problems can be solved in practice. While there are always some degenerate instances nobody knows how to handle, realistic instances tend to be easy enough to solve or at least approximate accurately.</p>
]]></description><pubDate>Mon, 02 Nov 2026 03:50:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=50332917</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50332917</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50332917</guid></item><item><title><![CDATA[New comment by jltsiren in "Mathematics has changed. Let's act like it"]]></title><description><![CDATA[
<p>Applied mathematics is funded because of its practical use. Pure mathematics, like other theoretical fields, is funded to explore ideas practically oriented people ignore. Most of the time such exploration produces nothing of practical value. But occasionally theoreticians stumble upon ideas that turn out to be fundamental to understanding something practically oriented people discover much later.</p>
]]></description><pubDate>Sun, 01 Nov 2026 23:51:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=50331201</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50331201</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50331201</guid></item><item><title><![CDATA[New comment by jltsiren in "OpenAI's blow to mathematicians: They have annihilated my field of research"]]></title><description><![CDATA[
<p>The question was what OpenAI could have done differently, so that their results would have been received better. Whether they owe anything to anyone is an unrelated discussion.<p>I've heard claims that OpenAI has spent hundreds of millions in pure mathematics research this year. It's difficult to understand what they are trying to achieve. They can't possibly expect results with sufficient practival value in the timescale the company cares about. And it doesn't work as a marketing campaign, as they failed the marketing part, either due to ignorance or arrogance.</p>
]]></description><pubDate>Sun, 01 Nov 2026 10:00:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=50324093</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50324093</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50324093</guid></item><item><title><![CDATA[New comment by jltsiren in "OpenAI's blow to mathematicians: They have annihilated my field of research"]]></title><description><![CDATA[
<p>Have people who are genuinely interested in the research they are doing. And let them polish the manuscripts to the level of clarity generally expected from publishable results.<p>The vast majority of the results they have released so far have no practical value beyond marketing. And that marketing aspect didn't work too well, because they didn't understand the target audience.</p>
]]></description><pubDate>Sun, 01 Nov 2026 01:21:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=50321883</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50321883</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50321883</guid></item><item><title><![CDATA[New comment by jltsiren in "What we know so far about Spain train crash"]]></title><description><![CDATA[
<p>The argument is ultimately constitutional. If pensions based on past contribitions are private property, the government can't avoid paying them when it's no longer economically sustainable. The obligation remains even if the government is no longer capable of honoring it. Political choices and ordinary laws can't change that. The only way out is amending the constitution and socializing the private property.</p>
]]></description><pubDate>Fri, 30 Oct 2026 10:47:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=50302191</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50302191</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50302191</guid></item><item><title><![CDATA[New comment by jltsiren in "What we know so far about Spain train crash"]]></title><description><![CDATA[
<p>It's a bit more complicated than that. It can be argued that if there is a clear link between contributions and pensions, promised pensions based on past contributions are private property, with the usual protections. I don't know the situation in Spain, but Finland at least has made that choice.<p>If you choose that (or if your legal system determines that), you need to be proactive with keeping the pension system in balance. While you can change what you promise in exchange for future contributions, substantial changes to what you have already promised can easily require constitutional amendments.</p>
]]></description><pubDate>Fri, 30 Oct 2026 00:56:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=50298564</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50298564</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50298564</guid></item><item><title><![CDATA[New comment by jltsiren in "New iMac with M6"]]></title><description><![CDATA[
<p>I recently chose a Studio Display over the alternatives, because I wanted something with an integrated camera to use as the primary display. There are already too many devices on my desk, so anything that needs an extra cable or comes with a battery that must be charged feels like a poor choice.<p>And I don't really see much value in high refresh rates outside gaming. The difference between 60 Hz and 144 Hz is minimal in most uses. Given what displays were in the 90s and 2000s, I would have chosen a different career if I was too picky about display quality.</p>
]]></description><pubDate>Wed, 28 Oct 2026 00:51:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=50268003</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50268003</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50268003</guid></item><item><title><![CDATA[New comment by jltsiren in "Three new discoveries in mathematics, computer science, and physics"]]></title><description><![CDATA[
<p>The challenge is the initial reduction from an arbitrary problem in NP to the problem you want to prove NP-complete.<p>In the usual approach, you assume a nondeterministic Turing machine (or equivalent) that solves the problem and a time bound (which can be an arbitrarily large polynomial). You then create a boolean expression that can be satisfied if and only if the Turing machine accepts the original problem instance. Unfortunately all constructions so far have included the time bound as a factor of the size of the expression.</p>
]]></description><pubDate>Tue, 27 Oct 2026 02:05:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=50253863</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50253863</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50253863</guid></item><item><title><![CDATA[New comment by jltsiren in "Three new discoveries in mathematics, computer science, and physics"]]></title><description><![CDATA[
<p>It's been a long time since I seriously thought about complexity theory, but I'd say no. For similar reasons to why complexity class E is not closed under polynomial-time reductions.<p>The most important component in the time bound is of the form 2^{n / polylog(n)}, which is subexponential. But if you have reduction from another problem that increases instance size quadratically, the algorithm for the other problem is no longer subexponential. Which means we are still essentially in the same neighborhood as before.<p>It's a huge result if true, and probably the first major AI result that affects the papers I read. But since the boundary in the hypothesis was kind of arbitrary, breaching it should not significantly change our intuition on complexity classes.</p>
]]></description><pubDate>Tue, 27 Oct 2026 00:00:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=50252939</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50252939</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50252939</guid></item><item><title><![CDATA[New comment by jltsiren in "Peter Thiel, the tech oligarch who believes in the Antichrist"]]></title><description><![CDATA[
<p>He says he is a Protestant, and he probably identifies as one. He may believe he believes in Jesus Christ, but does he actually believe, or is he just fooling himself? Can you even know if you genuinely believe in something, because you are always the easiest person you can fool?<p>There are many doctrinal differences between different branches of Protestantism. Lutheranism teaches that while good works do not imply faith, faith does imply good works. The absence of good works can therefore seen as evidence for the absence of faith, from that perspective.</p>
]]></description><pubDate>Mon, 26 Oct 2026 19:43:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=50249810</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50249810</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50249810</guid></item><item><title><![CDATA[New comment by jltsiren in "Lula wins election after final votes tallied"]]></title><description><![CDATA[
<p>The entire republican tradition (with a small r) rests on the assumption that leadership is a common skill. The society is supposed to give ambitious young people opportunities to demonstrate their skills, and then select the most capable ones and give them increasingly challenging roles. At any given time, there should be an order of magnitude more potential leaders (with the necessary skills and experience) than what the society actually needs. And the leaders should be replaced often enough, to avoid giving them the idea that they are somehow special.</p>
]]></description><pubDate>Mon, 26 Oct 2026 06:43:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=50239949</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50239949</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50239949</guid></item><item><title><![CDATA[New comment by jltsiren in "We should be more ambitious with the software we build"]]></title><description><![CDATA[
<p>It seems to me that you are comparing two kinds of business-minded people. Some want to sell tailored products to individual customers, while others want to sell one-size-fits-all products to many customers.<p>You could also focus on problems. What are the actual problems you want to solve? Can you use software to solve them? Do you still need to buy that software from other companies, or is it now feasible to have sufficient in-house expertise to develop it yourself?</p>
]]></description><pubDate>Sat, 24 Oct 2026 23:51:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=50226704</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50226704</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50226704</guid></item><item><title><![CDATA[New comment by jltsiren in "Google illegally cut down 250K trees in Finland for data center"]]></title><description><![CDATA[
<p>This project has repeatedly appeared in the national news since 2024, when Google first acquired the land. It's the largest investment ever made in Finland (at least by some metrics), so people are obviously paying attention.<p>And now it's probably going to be delayed by months or even years. Whatever Google was trying to accomplish, this wasn't a smart way to do it.</p>
]]></description><pubDate>Sat, 24 Oct 2026 22:49:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=50226215</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50226215</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50226215</guid></item><item><title><![CDATA[New comment by jltsiren in "Reforming English Spelling"]]></title><description><![CDATA[
<p>There is usually a standard language people learn at school. It's mostly used as a written language or when you want to sound formal. In more casual situations, people tend to use their favorite dialects. Or maybe an intermediate form between the standard language and the dialect, if that feels more appropriate.</p>
]]></description><pubDate>Fri, 23 Oct 2026 21:02:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=50215277</link><dc:creator>jltsiren</dc:creator><comments>https://news.ycombinator.com/item?id=50215277</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50215277</guid></item></channel></rss>