<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: xphos</title><link>https://news.ycombinator.com/user?id=xphos</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sat, 16 May 2026 01:39:47 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=xphos" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by xphos in "Rars: a Rust RAR implementation, mostly written by LLMs"]]></title><description><![CDATA[
<p>Your probably right I should read the spec but I've worked with so many brillant engineers and I am still pretty young so their must be even more. I just think the overselling of complexity is usually what makes things enterprise grade :) (if you know you know)</p>
]]></description><pubDate>Fri, 15 May 2026 12:30:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=48147800</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48147800</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48147800</guid></item><item><title><![CDATA[New comment by xphos in "Rars: a Rust RAR implementation, mostly written by LLMs"]]></title><description><![CDATA[
<p>Would it really take 5 years to develop rare compress and decompression that seems an extreme overestimate in time. I don't know of the compressor decompression but that seems really high</p>
]]></description><pubDate>Wed, 13 May 2026 20:45:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=48127315</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48127315</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48127315</guid></item><item><title><![CDATA[Ask HN: What SIMD for fixed point references do you use]]></title><description><![CDATA[
<p>My job involves developing and proposing changes for a SIMD architecture thats not standard i.e not ARM/x86/RVV.  I am looking for reference material for Fixed Point analysis in computer architecture and writing SIMD algorithms.<p>I have a couple of references but I feel like other people have a collated list of things they might refer to that I would find helpful. Yes I have done a google search however many of the resources are all floating point centric which I am less interested in. Linear algebra for SIMD with a focus on Fixed point is my primary concern.<p>Topics/Algorithms of interest:
Ichol Matrix inversion 
Household vectors rotation matrix generation
General filtering
Quanization design 
Fixed Point stability of matrix operations
FFT/DFT   (fftw is good but other soruces welcome)
Complex numbers for radio algorithms (Qasim Chaudhari has some good wireless topics books)<p>HW analysis side:
Comparsion of Memory version Register based ISA. I think RVV prompts doing byte filters in memory rather than via perms in register space. Their are lot of opinions and I honestly am looking for arguments for architecture trade-offs the comparsion of different approaches is hard to find</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48096162">https://news.ycombinator.com/item?id=48096162</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 11 May 2026 15:16:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=48096162</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48096162</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48096162</guid></item><item><title><![CDATA[New comment by xphos in "Hardware Attestation as Monopoly Enabler"]]></title><description><![CDATA[
<p>I think labeling this an abstract problem because all the existing implementations as having concrete but different problems is a little bit of a Motte and Bailey fallacy.<p>The surveillance of the future will be powered by the things we produce today. If the accepted algorithms leave cookies those cookies will be used tracked and monitized. The bad argument is the forced verification to do things on the internet. Making that start at the hardware is a lock in thats not okay.  Business will always own the services and making standards that trade our practical liberty for the sake of security is a very compromised position in my opinion.<p>And it does start with the age verification, followed by id checks, etc. Its compromising precisely because no lines are drawn and no rights to privacy are codified in law. Without guiderails the worse path will likely be taken for maximum profit</p>
]]></description><pubDate>Mon, 11 May 2026 01:17:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=48089991</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48089991</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48089991</guid></item><item><title><![CDATA[New comment by xphos in "Virtual violin produces realistic sounds"]]></title><description><![CDATA[
<p>I was rude here I meant to say I couldn't produce that model. I see the other comments but just vibes here. It sounds strange, I read some of the comments and the article again and I just think what makes the violin juicy is the dynamic instability of everything. The best violinist in the world would struggle to play a song the same exact way every single time. Not that they would be making mistakes but the slightest varriation of bow pressure or starting position echos through a piece. Perhaps the simulation of just one pluck is why it feels so synthetic</p>
]]></description><pubDate>Wed, 06 May 2026 17:26:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=48038918</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48038918</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48038918</guid></item><item><title><![CDATA[New comment by xphos in "Virtual violin produces realistic sounds"]]></title><description><![CDATA[
<p>As someone who plays the violin very poorly I don't think this sounds like violin at all. It is very folksy synthetic sounding. They are clearly plucking but it sounds similar to if you were bowing its really strange. I definitely could replicate that quality of model but I think I have heard much better models elsewhere</p>
]]></description><pubDate>Wed, 06 May 2026 13:03:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=48035747</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48035747</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48035747</guid></item><item><title><![CDATA[New comment by xphos in "Belgium stops decommissioning nuclear power plants"]]></title><description><![CDATA[
<p>I missed this, the point was more long term view. If you want a robust power network that doesn't kill the planet you really need to consider a timescale where climate changes effects are observable I'd argue that is a 100 years. We are debately between 100-200 years into the industrial revolution and climate changes worse impacts at still 20-50 years off (Not a lot of time to reinvent the economy just to be clear). But in that conception of time 100 year time frame seems very reasonable.<p>If you just look 10 years ahead you'd probably conclude solar, wind and maybe hydro is enough because short term thinking will always undersell the climate risk in my opinion. My justification for this thought is look at climate deniers arguments its always about magnitude and speed now because its the last effective argument.<p>Nuclear cost recovery and profit function for proven GEN4 is also on the 20-30 year timescale (depending on how much cost overruns they've faced it could be 50 years for bad cases) not the 5-10 year timescale. Making them unattractive financially speaking. Despite the fact that after that time which most US reactors are they are extremely profitable for the operator because the fuel -> power out is incrediblely in their favor. Ultimately, it takes longer term risk evaluation to show their benefits but they are undeniable and will be involved in solving the climate crisis.</p>
]]></description><pubDate>Tue, 05 May 2026 16:37:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=48024900</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48024900</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48024900</guid></item><item><title><![CDATA[New comment by xphos in "California to begin ticketing driverless cars that violate traffic laws"]]></title><description><![CDATA[
<p>I feel like your unintentional thresholds are just what ticketing is but in more complex way.  Also your points about being easier on AV companies tickets are very aggressive against repeat offenders. It works mechanically the same as setting threshold x# of tickets.<p>Ticketing gets weird because it varries by state I cannot speak to Califorina because I don't live there but in the northeast many states have points and if you get 10 points you lose your license. Not every ticket gives points i.e parking tickets. But speeding X miles over is 4 points. Drunk driving is 10 points generally speaking. Their are others like drag racing on public roads etc. But Those systems would be very harsh on a self-driving vechicals which all have the same "driver". You might need to be more permissive on the number of points because the "driver" is clocking 1000x-10000x what an ordinary driver does but tickets solves all the practical problems your bring up. The only grounds to debate feel like the number of points or threshold which besides stating I don't feel like you stake a position on where the threshold is (doing sound seems really hard without data on how often violations can be).  Intentionality is also ignored because it doesn't matter in driving since you could always say you didn't know X law i.e unintentional but its not an excuse because you are opt in to using public roads you have to know the laws.<p>I am not trying to be dismissive but I am really unsure what other system and thresholds you are describing while you are being compared to an extremely concrete and effective systems (effective at punishing drivers :) from actually dangerous behavior).  Usually the only hard part is observing offense but I think that makes ticketing acceptable because generally speaking the penalty for getting a ticket is very harsh on low income earners (increases compliance)</p>
]]></description><pubDate>Tue, 05 May 2026 16:22:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=48024673</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=48024673</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48024673</guid></item><item><title><![CDATA[New comment by xphos in "California to begin ticketing driverless cars that violate traffic laws"]]></title><description><![CDATA[
<p>I feel like this trivializises all software development. It happens but 99% of development is done to follow the spec or law in this case. The failures or bugs are usually not intentional. You basically saying if 1 car in the fleet breaks the law shut them down? If thats a strawman im sorry but even in software algorithm have unintentional bugs and make mistakes. The same is true for human drivers but we dont revoke their licenses when they break the law we have a proportional penalty for break. If driverless cars are speeding its a slap on the wrist. If they are driving the wrong way down the freeway the penalty would be revoking licenses</p>
]]></description><pubDate>Sat, 02 May 2026 19:04:51 +0000</pubDate><link>https://news.ycombinator.com/item?id=47989380</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47989380</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47989380</guid></item><item><title><![CDATA[New comment by xphos in "Belgium stops decommissioning nuclear power plants"]]></title><description><![CDATA[
<p>We can both build Nuclear that is safe and also build it faster. Its a matter of political will and reasonable regulation. Nations looking on the 100 year horizon would build nuclear and they would be newer and safer nuclear as time goes on. The next generation of reactors are safer and promise to be cheaper to build but the last of the GEN4 nuclear still are safe especially when we actually pay to have nuclear regulator inspectors.   The things we are willing to be cheaper on are always the inspectors but never the permitting its so backwards.</p>
]]></description><pubDate>Fri, 01 May 2026 13:46:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=47974770</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47974770</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47974770</guid></item><item><title><![CDATA[New comment by xphos in "Your phone is about to stop being yours"]]></title><description><![CDATA[
<p>I feel like you haven't read enough HN reply but I've said the exact thing about Apple OS they can have it and have HW but they should be seperate companies and the OS regulated like the monopoly service it is.<p>OSs are few in number and are special pieces of software supported by extreme network effects and locking in effects. Its virtually impossible to abandon mainstream OSs even in the desktop world which is much more permissive their are basically 2 OSs. You can count Linux as a third but its not a serious market share competitor yet! EU and France might change that.<p>But essentially total OS control allows a type of anti competitive behavior that is unavoidable. You either need 10s of options which are different in the services which isn't viable because modern OSs are some of the most complex pieces of software in existence. Your only other option is to regulate them like the power company because its not practical to build your own grid to have fair pricing and access</p>
]]></description><pubDate>Wed, 29 Apr 2026 22:40:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=47955665</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47955665</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47955665</guid></item><item><title><![CDATA[New comment by xphos in "US special forces soldier arrested after allegedly winning $400k on Maduro raid"]]></title><description><![CDATA[
<p>China dervies a ton of authority and Legitmacy from the PLA (peoples liberation army) and Russia is run by from Inteligence service members of the KGB low level ones to be sure but I don't see how China and Russia are counter examples. The US isn't their yet we will see if the backslide happens in the next two years but I think its of a different qualia than we see in the "typical" Authorithian State.<p>Ironically I was watching Nuremberg last not and is is schocking how close some of the leaders of this country are to characters like Hermann Göring, or Hitler himself in talking points. They are certainly populists but the language they used is MGGA (make german great again) so to speak. And factually that were not particular that good at it either most of Germans recovery is really due to the liberal government that pass laws that built the Autobahn were laws not by the Nazi party. They certain jumped on them and accelerate them but effective governence is not really for the populist</p>
]]></description><pubDate>Fri, 24 Apr 2026 13:53:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=47890344</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47890344</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47890344</guid></item><item><title><![CDATA[New comment by xphos in "MAGA Is Winning Its War Against U.S. Science"]]></title><description><![CDATA[
<p>I disagree any of the bloat you are talking about exists because puffying paper numbers is basically required to justify your work. Its because they were distrusted extensively so they have to ritually say their work is useful. Also I think its very challenging because most extra committees and stuff exist because people complained about how streamlined science use to be. Those committees exist because science got wrongfully accused of wasting money in the 80/90s with the golden fleece awards among other things, where republican's claimed someone's basic science research was a total waste of government money. Ironically many of the things that won a golden fleece ended up saving the country billions if not trillions of dollars overtime.<p>I think the major struggle with basic research is there is no way to conduct it in which results are guarenteed. If you could do that you wouldn't need basic research. But there are a ton of questions whose outcomes are not really valuable at all but you simply don't know. On net science dispite those many useless questions answered still is extremely net posititve because some of those apparently meaningless questions ended up being the right question to drive research to useful good answers.</p>
]]></description><pubDate>Mon, 20 Apr 2026 15:10:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=47835468</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47835468</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47835468</guid></item><item><title><![CDATA[New comment by xphos in "MAGA Is Winning Its War Against U.S. Science"]]></title><description><![CDATA[
<p>I think that is the Nixon effect followed up my the messaged opinion of the Regan administration that the government shouldn't be trusted despite doing 1000s of things that should earn a little bit of trust.</p>
]]></description><pubDate>Mon, 20 Apr 2026 14:47:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=47835204</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47835204</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47835204</guid></item><item><title><![CDATA[New comment by xphos in "NIST scientists create 'any wavelength' lasers"]]></title><description><![CDATA[
<p>I don't know to much about photonics but if they ever figure out the boolean algebra and register storage it would be really cool. You have 1 photo cpu core but just use different wavelengths for different threads running in the core. I am sure its way more complex than that but articles like this make you dream about how much we don't know</p>
]]></description><pubDate>Sun, 19 Apr 2026 01:03:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=47820946</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47820946</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47820946</guid></item><item><title><![CDATA[New comment by xphos in "Ban the sale of precise geolocation"]]></title><description><![CDATA[
<p>The article is about privacy tracking spyware cookies. I think making statements in that context about how modern logistics don't work with out location data implies you mean location data from those sources. I mean i suppose it doesn't have to but than it just feels off topic no?</p>
]]></description><pubDate>Sat, 18 Apr 2026 00:30:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47812077</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47812077</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47812077</guid></item><item><title><![CDATA[New comment by xphos in "Ban the sale of precise geolocation"]]></title><description><![CDATA[
<p>Seems hyperbolic we had logistics that functioned extremely well before we had customer location data for sale on 3rd party sites.</p>
]]></description><pubDate>Fri, 17 Apr 2026 16:53:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=47807955</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47807955</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47807955</guid></item><item><title><![CDATA[New comment by xphos in "Tax Wrapped 2025"]]></title><description><![CDATA[
<p>In the nicest way possible no absolutely not that would way underperform just about everything</p>
]]></description><pubDate>Mon, 13 Apr 2026 23:59:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=47759527</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47759527</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47759527</guid></item><item><title><![CDATA[New comment by xphos in "Maine is about to become the first state to ban major new data centers"]]></title><description><![CDATA[
<p>So if companies are actively trying to build them in the state. And your claim is the state has to allow them to be built? Isn't this just a delay requirement to force them to have data center? Sure they aren't build today but if the government cannot stop them at the permit, or at any point after its a requirement to have them. If you want to deny a state that right to decide via democratic processes you are effectively requiring them to build in their state.<p>How else could states that deny those data centers if they cannot pass legislation to prevent them or require XYZ parameters before they are allowed to be built?  Your argument is nonsensical in my opinion especially in context. I get that if you do a string compare they are different sentences but the semantic effects of the two statements are equavalanet in the framing that comapnies are actively trying to permit and build them.</p>
]]></description><pubDate>Mon, 13 Apr 2026 16:55:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=47754858</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47754858</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47754858</guid></item><item><title><![CDATA[New comment by xphos in "Computer science enrollment data suddenly shows a big drop"]]></title><description><![CDATA[
<p>I think AI emphazes brain dead computer science and script kiddy culture. It just lowers the bar enough to make bad ideas easy enough to implement quickly but good ideas still take longer to produce and argue for. Maybe its a skill issue on my part but I've watch my team rebuild a model I maintain, with AI for been estimating performance changes based on trace following. The Model isn't accurate and was build to bypass working on the real model. They spend someone's full time work for 4 months at this point but the thing they wanted modeled took 1 day by just adding it to the real model.<p>The managers and everyone are so excited by the fact the person did it with AI but I just get really confused because it seems like they just made some worse that has less value because it cannot actually correctly simulate the thing we want to test. Maybe i am being petty and salty but I think the that this is time wasted by any measure. And net-negative value but the team wants to emphasize we are using AI. There have been some productive uses but the productivity trap-doors are about the same as with normal development just people seem more willing to take the trap door ideas now.</p>
]]></description><pubDate>Mon, 13 Apr 2026 15:03:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=47753043</link><dc:creator>xphos</dc:creator><comments>https://news.ycombinator.com/item?id=47753043</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47753043</guid></item></channel></rss>