<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: icegreentea2</title><link>https://news.ycombinator.com/user?id=icegreentea2</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Mon, 29 Jun 2026 17:15:26 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=icegreentea2" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by icegreentea2 in "Study finds no clear advantage for trans women over cisgender women in sports"]]></title><description><![CDATA[
<p>Didn't find the full study, but what I'm pretty sure is a preprint is here: <a href="https://www.medrxiv.org/content/10.1101/2025.05.05.25326994v1" rel="nofollow">https://www.medrxiv.org/content/10.1101/2025.05.05.25326994v...</a><p>One thing to note and I guess might be a bit of the puzzle is that the data clearly indicates that trans-gendered men have lower upper and lower body strength compared to cis-men, while the opposite scenario (transwomen compared to cisgender women) appears much less conclusive.<p>The trans-women vs cis-gender strength effects are heavily influenced by a single study. There are only 7 studies for upper body strength, 5 of which lean towards showing greater trans-women strength, 1 that leans towards reduced, and 1 (Alvares 2025) which clearly indicates reduced strength. Similarly for lower body strength there are only 4 studies with a similar pattern (once again, the Alvares 2025 producing the clearest TW weaker than CW effect).<p>The Alvares 2025 study compares amateur volleyball players. There are 7 trans women in that study versus 8 cis-gender women. Average hours per week of activity (or volleyball? Unclear, I'm working off the meta-review's summary table) is 4 for TW and 14 for CW. Average age is 30 (28-33) for TW and 26 (22-29) for CW.<p>I don't think that makes the Alvares study useless, but I do feel that it's deeply limited. 4 hours vs 14 hours a week is a pretty big difference in activity level.</p>
]]></description><pubDate>Mon, 22 Jun 2026 22:22:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=48637121</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48637121</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48637121</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Nearly half (44%) of every T-shirt goes to waste before you even buy it"]]></title><description><![CDATA[
<p>That's not what the article, or the paper backing it claims.<p>The paper (<a href="https://circulareconomyjournal.org/ojs/JoCE/article/view/250" rel="nofollow">https://circulareconomyjournal.org/ojs/JoCE/article/view/250</a>) is about quantifying the environmental impact of material losses that happen in a typical scenario, including a single full recycle (as opposed to reuse).<p>The paper relies heavily on another paper (<a href="https://circulareconomyjournal.org/ojs/JoCE/article/view/250" rel="nofollow">https://circulareconomyjournal.org/ojs/JoCE/article/view/250</a>) for estimates of upstream material losses. That paper attempted to quantify production stage losses from raw fiber, into fabric, and then into apparel by surveying factories in Bangladesh for their mass input/outputs for different production stages.</p>
]]></description><pubDate>Tue, 26 May 2026 13:03:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=48279252</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48279252</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48279252</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Rising seas will swallow New Orleans. People need to start relocating now"]]></title><description><![CDATA[
<p>In case you missed it, that was a joke. There is infact an Army Corps of Engineers that is responsible for exactly what the comment suggested (amongst a lot of other things).<p>The Army Corps of Engineers has its prominent civil engineering role because early America did not have a lot of federal resources and was born from war. So when the Federal government decided it wanted to take on large scale civil engineering works, the only ready to go resource at hand were the military engineers. And then afterwards, it's pretty much been inertia.<p>The Army Corps of Engineers civil works division is basically almost completely staffed by civilians. So there's a convoluted top level organization, but on the ground, it's not like they have soldiers and military engineers building levees.<p>Congressional Research Service report: <a href="https://www.congress.gov/crs-product/R48322" rel="nofollow">https://www.congress.gov/crs-product/R48322</a><p>It includes a section about discussions on transferring civil works responsibility out of DoD.</p>
]]></description><pubDate>Mon, 25 May 2026 14:18:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=48267168</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48267168</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48267168</guid></item><item><title><![CDATA[New comment by icegreentea2 in "IBM Spins Off the First Pure-Play Quantum Chip Foundry"]]></title><description><![CDATA[
<p>Can you clarify? Do you mean that superconducting qubits are unable to perform  the "real applications" theoretically, or that superconducting qubits at the scale this foundry could produce will be unable, or that superconducting qubits that will foundry could produce will still be outperformed by classical techniques?</p>
]]></description><pubDate>Mon, 25 May 2026 13:18:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=48266498</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48266498</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48266498</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Actually, democracy dies in H.R."]]></title><description><![CDATA[
<p>Some other interviews/blurbs from the authors (from their Universities):<p><a href="https://politicalscience.ku.dk/about/news/2026/banal-but-brutal/" rel="nofollow">https://politicalscience.ku.dk/about/news/2026/banal-but-bru...</a><p><a href="https://www.hertie-school.org/en/news/detail/content/why-ordinary-people-do-dictators-dirty-work" rel="nofollow">https://www.hertie-school.org/en/news/detail/content/why-ord...</a><p>Two points that the NYT article does not emphasize as much:<p>* Career pressures can go both ways - "the same career pressure that drives some officers to do the regime’s dirty work drives others to join coups against it. Both are all-in gambles by people with their backs against the wall – one bets on the current regime, the other bets on its replacement."<p>* Meritocracy and professionalism in itself is not protective - "The Argentine army maintained a remarkably meritocratic promotion system for over a century – through democracies, personalist dictatorships, and military juntas alike" and "The policy implication is sobering: professionalisation alone won’t protect democracy. We need to think carefully about what happens to those who lose in competitive systems and what pathways we offer them."<p>In other words, there is a structural challenge - how do we treat "losers" in a system that is constantly present, and then there is the authoritarian's take on that challenge. Realistically, this is just highlighting a mechanism, and once someone is actually in a position to take advantage of such a mechanism, there's typically not much you can do to engineer an institutional safeguard within that system.</p>
]]></description><pubDate>Mon, 18 May 2026 15:47:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=48181418</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48181418</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48181418</guid></item><item><title><![CDATA[New comment by icegreentea2 in "The hypocrisy of cyberlibertarianism"]]></title><description><![CDATA[
<p>A libertarian society doesn't coddle you, but it still accepts that the state has monopoly of force, and it accepts that the state needs to be fair and predictable.<p>I think the author's fear would be that we currently live in an informational vortex that threatens to destabilize and consume our democracies and societies, and remove even the possibility of a fair and predictable state.<p>And I would argue that that is hardly an outlandish fear. It's barely an extrapolation at all.</p>
]]></description><pubDate>Sat, 09 May 2026 18:23:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=48077043</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48077043</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48077043</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Modern jet engine turbines: each blade a single crystal (2015)"]]></title><description><![CDATA[
<p>From <a href="https://web.mit.edu/16.unified/www/FALL/thermodynamics/notes/node98.html" rel="nofollow">https://web.mit.edu/16.unified/www/FALL/thermodynamics/notes...</a><p>All other things equal, range varies proportionately with efficiency. Ie, if you have 500km range at 50% overall efficiency, then at 65% overall efficiency, you have 650km range.</p>
]]></description><pubDate>Tue, 05 May 2026 01:28:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=48017003</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48017003</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48017003</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Modern jet engine turbines: each blade a single crystal (2015)"]]></title><description><![CDATA[
<p>This might be interesting: <a href="https://www.nationalacademies.org/read/23490/chapter/6" rel="nofollow">https://www.nationalacademies.org/read/23490/chapter/6</a><p>Thermodynamic efficiency (which is what turbine blades enable) has increased from ~30 to 55% over the last 50-60 years. The book estimates that the practical limit of for thermodynamic efficiency is in the 65-70% range.</p>
]]></description><pubDate>Mon, 04 May 2026 01:04:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=48003424</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48003424</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48003424</guid></item><item><title><![CDATA[New comment by icegreentea2 in "US–Indian space mission maps extreme subsidence in Mexico City"]]></title><description><![CDATA[
<p>This is a phys.org "article". They're usually just rehashed press releases, and this one is particularly bad - it's literally just the NASA press release with the last 2 paragraphs chopped off. <a href="https://www.nasa.gov/missions/nisar/us-indian-space-mission-maps-extreme-subsidence-in-mexico-city/" rel="nofollow">https://www.nasa.gov/missions/nisar/us-indian-space-mission-...</a></p>
]]></description><pubDate>Sun, 03 May 2026 22:04:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=48002043</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=48002043</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48002043</guid></item><item><title><![CDATA[New comment by icegreentea2 in "All Four Sentinel-1 Satellites Are Now Live"]]></title><description><![CDATA[
<p>Uhhh... editor/author/LLM was asleep here. There are 4 sentinel-1 sats in orbit, but one of them has been decommissioned because of system failure... as the article itself states.</p>
]]></description><pubDate>Sun, 03 May 2026 13:53:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47996972</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47996972</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47996972</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Oil tanker hijacked off Yemen, steers toward Somalia"]]></title><description><![CDATA[
<p>There is a generalized military response in place (CTF-151 via UN). The insurance based scheme tends to work because it's basically dealing with "leakers".<p>UNCLOS permits any country to intervene in case of piracy. Because piracy attacks the public good of assured, consistent, low cost maritime transit and commerce (which the entire developed world is addicted to), and successful piracy begets piracy, there are a lot of countries with a lot of resources deeply interested with intervening.</p>
]]></description><pubDate>Sat, 02 May 2026 16:45:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47987989</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47987989</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47987989</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Oil tanker hijacked off Yemen, steers toward Somalia"]]></title><description><![CDATA[
<p>As other people have noted, Somali piracy is not "new". It's been happening since the 90s (Somali Civil war and failed international interventions). There were, and still are multinational (basically chartered by the UN) naval task forces operating in the area, to deter and interdict pirates. See CTF-151 (<a href="https://combinedmaritimeforces.com/ctf-151-counter-piracy/" rel="nofollow">https://combinedmaritimeforces.com/ctf-151-counter-piracy/</a>)<p>These types of actions are not perfect, they cannot stop everything, so you still see successful attacks happen.<p>And no one wants to try to intervene in Somalia itself. The world tried that in the 90s and got completely burned.<p>So the answer is that "other countries are not allowing it" in the same way that no country allows murder, and yet it still happens.</p>
]]></description><pubDate>Sat, 02 May 2026 16:08:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47987632</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47987632</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47987632</guid></item><item><title><![CDATA[New comment by icegreentea2 in "U.S. to Withdraw 5k Troops from Germany, Pentagon Says"]]></title><description><![CDATA[
<p>There are two broad reasons why the US has troops in Germany (and in Europe overall).<p>1. Because the Europeans wanted them there. NATO was a big security blanket, and certainly since the end of the cold war, up to say... 2014, America -wanted- a compliant Europe.<p>2. Because Europe is an amazing springboard into the middle east, and America just can't help but get itself involved in dropping bombs on the middle east.<p>1 ties into 2. A compliant Europe is less likely to raise objections to being used as a forward base for bombing Iraqis and Iranians. It's only in the last 10-15 years that the US realized that perhaps it was/had squandered it's lead to China, and dropped the ball (Europe at fault too) on properly containing (or addressing) Russia, and it would sure be nice if it could focus on the Pacific.</p>
]]></description><pubDate>Sat, 02 May 2026 01:33:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=47982433</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47982433</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47982433</guid></item><item><title><![CDATA[New comment by icegreentea2 in "U.S. to Withdraw 5k Troops from Germany, Pentagon Says"]]></title><description><![CDATA[
<p>The articles mention withdrawing a BCT (which is ~4000 people) form Germany.<p>The US currently has 2 BCTs "fully" in Germany. The 2nd Cav Regiment (a Stryker unit.. so infantry mounted on 8x8 APCs) and an Armoured BCT on 9 month rotation (so tanks and IFVs).<p>There have been a bunch of studies indicating that the rotational ABCT costs more than even a truly forward deployed ABCT. My bet is that it's the ABCT that is going to get withdrawn. It's both the flashier unit, and likely has the highest impact on freeing up money. This also lines up with the withdrawal timelines... since the unit is rotational, they just need to wait for the end of rotation, and just... not send another. Much less disruption.<p>While the timing was obviously conjunction with current events, this draw down was likely to happen at some point in this term, even in absence of Iran things. Trump literally tried to do this at the end of his last term.</p>
]]></description><pubDate>Sat, 02 May 2026 01:11:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=47982297</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47982297</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47982297</guid></item><item><title><![CDATA[New comment by icegreentea2 in "How an oil refinery works"]]></title><description><![CDATA[
<p>The total energy supply figure is a primary energy mix - for the fossil fuels it represents the thermal energy of the fuel. You can look at the final energy consumption section a bit lower to get a different picture taking into account conversion losses.</p>
]]></description><pubDate>Thu, 30 Apr 2026 16:54:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=47965231</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47965231</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47965231</guid></item><item><title><![CDATA[New comment by icegreentea2 in "How an oil refinery works"]]></title><description><![CDATA[
<p>Some crude averages from <a href="https://www.eia.gov/energyexplained/oil-and-petroleum-products/refining-crude-oil.php" rel="nofollow">https://www.eia.gov/energyexplained/oil-and-petroleum-produc...</a><p>~50% gasoline, ~25-30% diesel.</p>
]]></description><pubDate>Thu, 30 Apr 2026 16:48:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=47965167</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47965167</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47965167</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Ukraine's drone commander has Russian oil, troops and morale in his sights"]]></title><description><![CDATA[
<p>Ukraine has concretely demonstrated their ability to perform deep missile/drone strikes (on the order of ~1500km) onto Russian strategic and economic assets.<p>Ukrainian drone capabilities in the near battlefield (up to ~20-30km deep) are also not contested. Russian milbloggers will openly talk about the difficulty of massing and movement in that area due to the saturation of drone coverage (and btw, this challenge is more or less symmetric).<p>So the article is not likely exaggerating any of their capabilities. However, it is exaggerating via omission.<p>In terms of deep strikes, the question is what the success rate of these missions are, what cadence can they sustain, what's the constellation of Russian lapses that have to line up for a successful strike, etc.<p>Another known area of weakness (that the Ukrianians are working hard on) is the middle range. How to strike quickly at targets of opportunity in the 50-500km range field. This was/is a capability that things like GMLRS and ATACMS provided, but I imagine the Ukraine is forced to ration those munitions carefully.</p>
]]></description><pubDate>Tue, 28 Apr 2026 13:35:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=47934384</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47934384</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47934384</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Ukraine's drone commander has Russian oil, troops and morale in his sights"]]></title><description><![CDATA[
<p>Ukraine's "long range attack drones" are really just cost optimized cruise missiles. Long-range strike against strategic targets is something you can handle without man in loop control. For example, the original Tomahawks could do terrain radar matching (+inertial guidance) for navigation, and had a fully onboard camera based system for terminal guidance.</p>
]]></description><pubDate>Tue, 28 Apr 2026 01:42:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=47929575</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47929575</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47929575</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Sawe becomes first athlete to run a sub-two-hour marathon in a competitive race"]]></title><description><![CDATA[
<p>Reviews say that they have very very good, but not record breaking energy return and shock absorption. But what they are is insanely light at sub 100g.<p><a href="https://runrepeat.com/adidas-adizero-adios-pro-evo-3" rel="nofollow">https://runrepeat.com/adidas-adizero-adios-pro-evo-3</a></p>
]]></description><pubDate>Sun, 26 Apr 2026 23:30:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=47915955</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47915955</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47915955</guid></item><item><title><![CDATA[New comment by icegreentea2 in "Where did my taxes go?"]]></title><description><![CDATA[
<p>If you do tax revenue as % of GDP, you get the US falling at about 25%, with the OECD average sitting around 35%.</p>
]]></description><pubDate>Wed, 15 Apr 2026 18:55:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=47783553</link><dc:creator>icegreentea2</dc:creator><comments>https://news.ycombinator.com/item?id=47783553</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47783553</guid></item></channel></rss>