<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: ars</title><link>https://news.ycombinator.com/user?id=ars</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 07 Jun 2026 21:55:10 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=ars" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by ars in "Valve P2P networking broken for more than 2 months"]]></title><description><![CDATA[
<p>I think you have that backwards, WebRTC doesn't work, and STUN does.</p>
]]></description><pubDate>Sun, 07 Jun 2026 05:54:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=48432227</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48432227</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48432227</guid></item><item><title><![CDATA[New comment by ars in "U.S. to dismantle system tracking Atlantic currents that are at risk of collapse"]]></title><description><![CDATA[
<p><a href="https://abc7news.com/post/report-finds-lack-police-efficiency-leading-fewer-arrests-california/15494042/" rel="nofollow">https://abc7news.com/post/report-finds-lack-police-efficienc...</a><p><a href="https://abc7.com/post/george-gascon-los-angeles-district-attorney-lada-misdemeanor-crimes/8674095/" rel="nofollow">https://abc7.com/post/george-gascon-los-angeles-district-att...</a></p>
]]></description><pubDate>Thu, 04 Jun 2026 03:10:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=48393235</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48393235</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48393235</guid></item><item><title><![CDATA[New comment by ars in "Re: [PATCH] OOM_pardon, a.k.a. don't kill my xlock (2004)"]]></title><description><![CDATA[
<p>Install oomd or earlyoom.<p><a href="https://github.com/facebookincubator/oomd/" rel="nofollow">https://github.com/facebookincubator/oomd/</a><p><a href="https://github.com/rfjakob/earlyoom" rel="nofollow">https://github.com/rfjakob/earlyoom</a></p>
]]></description><pubDate>Mon, 01 Jun 2026 05:52:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=48353086</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48353086</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48353086</guid></item><item><title><![CDATA[New comment by ars in "Websites have a new way to spy on visitors: analyzing their SSD activity"]]></title><description><![CDATA[
<p>> Simply add random access times.<p>That doesn't work. Because the random times are uniformly distributed it's possible to remove it from the data by additional sampling. You do make it harder because you need a lot more data, but it's still possible to extract the signal, because the noise is uniform.</p>
]]></description><pubDate>Mon, 01 Jun 2026 05:48:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=48353064</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48353064</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48353064</guid></item><item><title><![CDATA[New comment by ars in "New York passes pied-a-terre tax"]]></title><description><![CDATA[
<p>You joke, but they can partition off a small space, rent it out, and claim they are renting the entire thing to someone. It can be a housekeeper who actually has access to the entire thing.<p>They can also split the property into multiple independently owned properties that just so happen to be right near each other, each just under the limit.</p>
]]></description><pubDate>Fri, 29 May 2026 08:15:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=48320493</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48320493</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48320493</guid></item><item><title><![CDATA[New comment by ars in "Goodbye Visa and Mastercard: 130M Europeans switching to sovereign payment"]]></title><description><![CDATA[
<p>Can't the attacker just man-in-the-middle to the real bank, and show the QR code to the phone?<p>Does the entire transaction take place on the phone? I don't think that's a good option.</p>
]]></description><pubDate>Wed, 20 May 2026 23:51:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=48215964</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48215964</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48215964</guid></item><item><title><![CDATA[New comment by ars in "Minnesota becomes first state to ban prediction markets"]]></title><description><![CDATA[
<p>Stocks are linked to entities that perform economic activity, i.e. make a profit, and share that profit. i.e. everyone can win.<p>Predictions markets are just bets: one person wins, one loses.</p>
]]></description><pubDate>Wed, 20 May 2026 02:27:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=48202372</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48202372</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48202372</guid></item><item><title><![CDATA[New comment by ars in "Colombia hosts talks on exiting fossil fuels as global energy crisis deepens"]]></title><description><![CDATA[
<p>That 40% number is impossible. First of all transportation is 30% of energy, which already makes 40% impossible, second if it's 4 times more efficient then it would still use 8% to 10% of energy, making your actual savings 20% of energy at the MOST.<p>But your 3 to 4 times number is also not real, because the actual number is 2 to 3 - and that's measured at the outlet, if you measure starting from primary power generation they are about 2 times as efficient, not 4.<p>So I stand by what I said: Electric vehicles are not what matters for clean energy, what matters is power generation.</p>
]]></description><pubDate>Wed, 06 May 2026 21:24:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=48042069</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48042069</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48042069</guid></item><item><title><![CDATA[New comment by ars in "Colombia hosts talks on exiting fossil fuels as global energy crisis deepens"]]></title><description><![CDATA[
<p>Cars are a very unimportant part of changing to clean energy.<p>The most important part is the generation. Making specific types of cars required right now is VERY premature, and will just cause backlash.<p>Let's focus on just one (main) thing: Clean generation of electricity. The rest will come in due course.</p>
]]></description><pubDate>Wed, 06 May 2026 19:31:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=48040602</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48040602</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48040602</guid></item><item><title><![CDATA[New comment by ars in "Modern jet engine turbines: each blade a single crystal (2015)"]]></title><description><![CDATA[
<p>Natural gas in the US is so cheap, producers have to pay to get rid of it. However there's not enough transport hubs in the US to export it to places that needed it, although several companies have recently announced a pivot from wind energy to natural gas ports. (Wish they'd do both.)</p>
]]></description><pubDate>Mon, 04 May 2026 00:15:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=48003060</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=48003060</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48003060</guid></item><item><title><![CDATA[New comment by ars in "Kyoto cherry blossoms now bloom earlier than at any point in 1,200 years"]]></title><description><![CDATA[
<p>This title is not true, they are blooming earlier than the earliest <i>average</i>.<p>The nature of an average is that it smooths out peaks.</p>
]]></description><pubDate>Thu, 30 Apr 2026 03:43:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=47957828</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47957828</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47957828</guid></item><item><title><![CDATA[New comment by ars in "Refuse to let your doctor record you"]]></title><description><![CDATA[
<p>You are forgetting about competition, increasing costs means directly increasing premiums, and higher premiums means lower business.</p>
]]></description><pubDate>Fri, 24 Apr 2026 19:34:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=47894794</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47894794</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47894794</guid></item><item><title><![CDATA[New comment by ars in "Google broke its promise to me – now ICE has my data"]]></title><description><![CDATA[
<p>> For me, most threads get their own account.<p>This is a violation of the guidelines: "Throwaway accounts are ok for sensitive information, but please don't create accounts routinely. HN is a community—users should have an identity that others can relate to."</p>
]]></description><pubDate>Wed, 15 Apr 2026 21:17:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=47785347</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47785347</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47785347</guid></item><item><title><![CDATA[New comment by ars in "Regular army and reserve components enlistment program: Summary of change"]]></title><description><![CDATA[
<p>I know no one cares, rather I was explaining why this Iranian hit is not a demonstration of any great success, they were hitting an unprotected target, in a non-US base.</p>
]]></description><pubDate>Wed, 25 Mar 2026 06:20:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=47513942</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47513942</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47513942</guid></item><item><title><![CDATA[New comment by ars in "Regular army and reserve components enlistment program: Summary of change"]]></title><description><![CDATA[
<p>> of drones takings out US helicopters<p>They attacked a HH-60M Medevac helicopter which is a war crime, and also explains why it wasn't protected.<p>Also, the radar was Iraqi, although possibly jointly operated with the US.</p>
]]></description><pubDate>Wed, 25 Mar 2026 05:16:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=47513574</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47513574</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47513574</guid></item><item><title><![CDATA[New comment by ars in "Mozilla to launch free built-in VPN in upcoming Firefox 149"]]></title><description><![CDATA[
<p>Free VPN's are usually funded by agreeing to route some VPN traffic for other people though your own network. They basically work as mixers, randomizing traffic throughout the VPN population.<p>This can expose users to legal risks, but but can also add plausible deniability at the same time "it wasn't me, it was someone on VPN".</p>
]]></description><pubDate>Thu, 19 Mar 2026 04:35:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=47434985</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47434985</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47434985</guid></item><item><title><![CDATA[New comment by ars in "Observation of the doubly charmed heavy proton Ξcc+"]]></title><description><![CDATA[
<p>It's not stable, and no it's not theoretically possible.<p>A proton is the lightest stable baryon, and thus the only only stable one. It's not a coincidence - in particle physics if a lighter elementary particle is possible the heavier one will ALWAYS decay into it. "Whatever is not forbidden is mandatory." (Combination particles like atoms are more complicated because there are other things that might force the particle to exist.)</p>
]]></description><pubDate>Wed, 18 Mar 2026 20:21:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=47430936</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47430936</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47430936</guid></item><item><title><![CDATA[New comment by ars in "Observation of the doubly charmed heavy proton Ξcc+"]]></title><description><![CDATA[
<p>It's not actually a proton. And yes you can built a particle made from any combination. I posted elsewhere in the thread with a bit more details.</p>
]]></description><pubDate>Wed, 18 Mar 2026 20:14:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=47430859</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47430859</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47430859</guid></item><item><title><![CDATA[New comment by ars in "Observation of the doubly charmed heavy proton Ξcc+"]]></title><description><![CDATA[
<p>This is significant because binding 2 heavy quarks together is very hard to do because they decay so fast.<p>All the particles made from just 3 light quarks have been found. And I think all of the ones made with 1 heavy quark and 2 light ones have also been found.<p>This is only the 2nd particle made from 2 heavy quarks that has ever been found.<p>It's not a coincidence that both of those were made with charm quarks, because charm quarks are the lightest of the heavy ones.<p>None made of 3 heavy quarks has been found (yet).<p>Also: A particle made with a top quark is not possible - it decays too quickly.</p>
]]></description><pubDate>Wed, 18 Mar 2026 20:12:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=47430832</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47430832</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47430832</guid></item><item><title><![CDATA[New comment by ars in "Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]"]]></title><description><![CDATA[
<p>You misread what I wrote. Water is the same solvent as both regular water and ultrapure, I was replying to the ultrapure part.<p>Also: I appreciate you found a source, unfortunately it's not true what they said. It's not possible to "leech nutrients through the hair to the scalp", the wrench story is not true either - there is zero chance a lab with the standards they have would just leave a wrench at the bottom of the pool - it would contaminate the water. Not to mention the bottom is filled with more of those light tubes, so there is no place for a wrench to sit. (And if someone dropped one it would break a tube.)<p>I don't know why someone would tell businessinsider such stories, but they are not true.<p>And see: <a href="https://chemistry.stackexchange.com/questions/7467/is-pure-water-very-corrosive" rel="nofollow">https://chemistry.stackexchange.com/questions/7467/is-pure-w...</a><p>It's hard when a supposedly reliable news place writes things that are not true, but that's the world we live in. I guess technically they are just quoting stories they were told.<p>(My personal pet peeve is a news source that made everyone think you can't leave eggs outside the fridge if they were washed, (as they are in the US). This is not true, but "there's a news source".)</p>
]]></description><pubDate>Wed, 04 Mar 2026 03:51:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=47242828</link><dc:creator>ars</dc:creator><comments>https://news.ycombinator.com/item?id=47242828</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47242828</guid></item></channel></rss>