<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: extropy</title><link>https://news.ycombinator.com/user?id=extropy</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 13 May 2026 15:24:34 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=extropy" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by extropy in "When “idle” isn't idle: how a Linux kernel optimization became a QUIC bug"]]></title><description><![CDATA[
<p>Is it just me, or the article structure and subtitles feel very AI?</p>
]]></description><pubDate>Wed, 13 May 2026 06:33:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=48118530</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=48118530</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48118530</guid></item><item><title><![CDATA[New comment by extropy in "Phoenix: A modern X server written from scratch in Zig"]]></title><description><![CDATA[
<p>Thanks for linking Arcan, looks interesting.<p>After a quick scan, Arcan seems to be pushing a microkernel approach, with some clients providing display server capabilities and others talking to them via shared memory. This will have the same problem as all other microkernels - nice for research, but the extra completely outweights the marginal benefits over a monolithic thing that generally has a smaller API surface to maintain.</p>
]]></description><pubDate>Thu, 25 Dec 2025 09:31:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=46383295</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=46383295</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46383295</guid></item><item><title><![CDATA[New comment by extropy in "Phoenix: A modern X server written from scratch in Zig"]]></title><description><![CDATA[
<p>Wayland design choices are heavily influenced by automotive and TV where it has been industry standard way before it became mostly usable as a desktop. And that has lead to design compromises that look odd on desktop.<p>But hey, you can probably run automotive UIs with your desktop compositor.<p>And Gnome devs are just being silly at this point.</p>
]]></description><pubDate>Thu, 25 Dec 2025 09:11:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=46383195</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=46383195</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46383195</guid></item><item><title><![CDATA[New comment by extropy in "Contrails Map"]]></title><description><![CDATA[
<p>I'm not following the logic why contrails cause net warming.<p>Why nuclear blasts - that also introduce lots of particles in atmosphere cause a cooling effect - "nuclear winter"?</p>
]]></description><pubDate>Sat, 20 Dec 2025 09:36:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=46334809</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=46334809</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46334809</guid></item><item><title><![CDATA[New comment by extropy in "Is it possible to allow sideloading and keep users safe?"]]></title><description><![CDATA[
<p>This is what Chrome OS does, works pretty well IMHO.</p>
]]></description><pubDate>Sun, 31 Aug 2025 14:42:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=45083513</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=45083513</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45083513</guid></item><item><title><![CDATA[New comment by extropy in "QUIC for the kernel"]]></title><description><![CDATA[
<p>The NAT firewalls do not like P2P UDP traffic.
Majoritoy of the routers lack the smarts to passtrough QUIC correctly, they need to treat it the same as TCP essentially.</p>
]]></description><pubDate>Thu, 31 Jul 2025 18:40:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=44748726</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=44748726</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44748726</guid></item><item><title><![CDATA[New comment by extropy in "NASA announces Boeing Starliner crew will return on SpaceX Crew-9"]]></title><description><![CDATA[
<p>Possible. Depends how the contract is structured, they may be able to claw back some money from Aerojet.<p>Boeing still takes all the blame.</p>
]]></description><pubDate>Sat, 24 Aug 2024 18:17:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=41340185</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=41340185</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41340185</guid></item><item><title><![CDATA[New comment by extropy in "The Linux kernel has been accidentally hardcoded to a maximum of 8 cores"]]></title><description><![CDATA[
<p>The minimum run time of a tread before it's potentially preempted when load is high is computed based on number of cores available giving more time when there are more cores since rescheduling latency is apparently longer with more cores.<p>And the function that does this uses the same value for 8 and more cores.<p>So the performance impact is likely <<1%.</p>
]]></description><pubDate>Tue, 14 Nov 2023 09:56:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=38261247</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=38261247</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38261247</guid></item><item><title><![CDATA[New comment by extropy in "Every single Onewheel is being recalled after four deaths"]]></title><description><![CDATA[
<p>Bicycles fail safe unless a wheel falls off or both brakes fail simultaneously.<p>Balancing onewheelers - if the control or power system fails, you immediately go down, hard. And since the cruising position is weight shifted forwards, it's 100% nose dive.</p>
]]></description><pubDate>Sat, 30 Sep 2023 21:07:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=37719819</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=37719819</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37719819</guid></item><item><title><![CDATA[New comment by extropy in "Germany Will Force 80% of Gas Stations to Install EV Charging, Too"]]></title><description><![CDATA[
<p>There is a significant overap - fuel up, find the restroom, grab some snacks.<p>EV chargers have the benefits of being cheap, take little space, and permitting is raesonably simple. Expecting them to be way more widespread than fuel stations ever can be.</p>
]]></description><pubDate>Mon, 11 Sep 2023 18:12:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=37471228</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=37471228</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37471228</guid></item><item><title><![CDATA[New comment by extropy in "AMD Open-Source GPU Kernel Driver Above 5M Lines, Entire Linux Kernel at 34.8M"]]></title><description><![CDATA[
<p>That GPU firmware is generally just a blob that has never been open sourced. The driver is the part that talks to the GPU, not the OS that runs inside the GPU. Unless I'm mistaken in which case this would be a huge deal.</p>
]]></description><pubDate>Thu, 31 Aug 2023 23:37:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=37344957</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=37344957</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37344957</guid></item><item><title><![CDATA[New comment by extropy in "I almost bought a scanner"]]></title><description><![CDATA[
<p>I suspect the part that is failing is not the connector itself, but rather a controller chip somewhere upstream.<p>Given the skills you could def DIY repair it for cheaper, the high price is likely including uncertainty of what's broken and some form of warranty.</p>
]]></description><pubDate>Thu, 26 Jan 2023 09:13:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=34529442</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=34529442</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34529442</guid></item><item><title><![CDATA[New comment by extropy in "Negative-weight single-source shortest paths in near-linear time"]]></title><description><![CDATA[
<p>For most use cases shortest path is super simple and fast problem on modern PCs. So might be useful on extra large synthetic networks.
Neural nets?, Trading logs?, Image processing?<p>Also negative weights are rare in real life applications. And def not in what you would consider normal path planning.</p>
]]></description><pubDate>Sun, 22 Jan 2023 18:57:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=34480943</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=34480943</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34480943</guid></item><item><title><![CDATA[New comment by extropy in "“Copycat” layoffs won’t help tech companies or their employees"]]></title><description><![CDATA[
<p>This. Also the bigger the company is, the less the long term loyalty and people are generally there for the money.<p>So top performers will get moving quickly.</p>
]]></description><pubDate>Sun, 22 Jan 2023 18:47:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=34480799</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=34480799</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34480799</guid></item><item><title><![CDATA[New comment by extropy in "The UK is wasting a lot of wind power"]]></title><description><![CDATA[
<p>Opportunity to generate cheap hydrogen?</p>
]]></description><pubDate>Thu, 12 Jan 2023 23:49:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=34361991</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=34361991</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34361991</guid></item><item><title><![CDATA[New comment by extropy in "Twitter has re-suspended ElonJet account"]]></title><description><![CDATA[
<p>Let me argue from the other end.
The incident happened, which is obv not good.<p>What where the causes?
How can we prevent this from happening again?
What do other high profile perons do to prevent this from happening?</p>
]]></description><pubDate>Thu, 15 Dec 2022 08:30:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=33996735</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=33996735</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33996735</guid></item><item><title><![CDATA[New comment by extropy in "100G-LR4 optic cable teardown"]]></title><description><![CDATA[
<p>That sounds very wrong. 
Not a physicist, but light does not interact with magnets, or you need to get into the superconducting strength levels before it does.<p><a href="https://en.m.wikipedia.org/wiki/Optical_rotation" rel="nofollow">https://en.m.wikipedia.org/wiki/Optical_rotation</a><p>It seems the optical rotation happens due to molecular structure of specific materials.<p>Edit, found this: <a href="https://en.wikipedia.org/wiki/Faraday_effect" rel="nofollow">https://en.wikipedia.org/wiki/Faraday_effect</a><p>So a specific material plus magnetic field is needed. But still not sure how strong of a field is sufficient.</p>
]]></description><pubDate>Mon, 12 Dec 2022 08:05:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=33952152</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=33952152</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33952152</guid></item><item><title><![CDATA[New comment by extropy in "Driving Amazon’s electric delivery vehicle: Rivian EDV [video]"]]></title><description><![CDATA[
<p>DOS programs loaded fast, since there was around 1MB of working memory. Granted they did not do much, but where responsive, except  when needed to do real compute, then you just waited forever.<p>Windows 3x/9x with first real multitasking and swap - things got quite sluggish. Early browsers were particularly eager of gulping ram and bringing everything to halt.<p>Nowdays it feels somewhere in the middle with copious amounts of ram stuff can be fast once up and running, but it seems every app either wants to load from web on every step or tries to index your drive on every keypress.</p>
]]></description><pubDate>Wed, 07 Dec 2022 07:13:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=33891569</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=33891569</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33891569</guid></item><item><title><![CDATA[New comment by extropy in "Audio CD ripping – optical drive accuracy listing"]]></title><description><![CDATA[
<p>The accuracy figures in TA are kinda low - 99.7 for the top one, averaging out at 98.5%.<p>Anyone has some idea what is this measuring?<p>Bit accuracy (way too low)? A full disk read 100% error free? The actual accuracy really depends on the quality of the disc, is this measured with a reference disc?</p>
]]></description><pubDate>Mon, 07 Nov 2022 08:58:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=33503142</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=33503142</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33503142</guid></item><item><title><![CDATA[New comment by extropy in "Audio CD ripping – optical drive accuracy listing"]]></title><description><![CDATA[
<p>I think GP means prefect or nothing - it errors out if not able to get a valid read.<p>Regular error correction + checksum is a pretty solid implementation of that.</p>
]]></description><pubDate>Mon, 07 Nov 2022 08:52:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=33503088</link><dc:creator>extropy</dc:creator><comments>https://news.ycombinator.com/item?id=33503088</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33503088</guid></item></channel></rss>