<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: rapjr9</title><link>https://news.ycombinator.com/user?id=rapjr9</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 12 Apr 2026 05:58:10 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=rapjr9" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by rapjr9 in "AI agent opens a PR write a blogpost to shames the maintainer who closes it"]]></title><description><![CDATA[
<p>This seems like a prototype for AI malware.  Given that an AI agent could run anywhere in a vendors cloud it makes it very similar to a computer worm that can jump from machine to machine to spread itself and hide from administrators while attacking remote targets.  Harassing people is probably just the start.  There is lots of other bad behavior that could be automated.</p>
]]></description><pubDate>Thu, 12 Feb 2026 18:36:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=46993022</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46993022</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46993022</guid></item><item><title><![CDATA[New comment by rapjr9 in "US, UK, EU, Australia and more to meet to discuss critical minerals alliance"]]></title><description><![CDATA[
<p>So what is happening right now with rare earths used for military purposes?  My reading says it will take 5-10 years to build processing facilities without which the raw ore is useless.  Has the US stopped building missiles and fighter jets?  They seem to still be selling them to other countries, but it is unclear if they can actually deliver anything until many years from now, or even restock their own supplies.  Maybe the military has a small stockpile of some of the REE's?  It's also not clear how the UK, EU, and Australia are going to stockpile REE's if they don't have the capability to process the ore.  Is the West's supply of weapons going to run out soon as they use up what they have and can't build more?  This seems pertinent both to attacking Iran and the war in Ukraine.</p>
]]></description><pubDate>Sun, 01 Feb 2026 18:23:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=46848116</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46848116</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46848116</guid></item><item><title><![CDATA[New comment by rapjr9 in "Ask HN: Do you also "hoard" notes/links but struggle to turn them into actions?"]]></title><description><![CDATA[
<p>While I do hoard notes I've realized over the years that the main reason I write notes is as a memory aid.  If I write it down I remember it better, and I'm more likely to do it.  Notes also act as a filter because I write stuff down, sometimes review the notes later, and decide what I wrote down isn't worth doing, so making a note of an idea essentially gives me a delay to review the idea and decide if it is worth doing.  I do also record links, keeping them in wiki pages (along with wiki pages for notes about various projects); I started doing that because browser histories today seem to autodelete old links.  Putting them into a wiki makes them searchable.  I keep journals as well, which are also searchable.  I don't necessarily want to be reminded of my notes and wiki/journal entries, I know they are there, I mainly want to call them up when I decide I need them.  That's the main drawback of paper notes, I can't search them.  I've tried scanning them, but it's tedious and they don't translate to ASCII text well, and drawings are not searchable.  I've considered using one of the e-paper notepads instead of paper notes, but I'd need a notepad handy in every room of the house and that would cost too much, and the procedures to automatically sync them to a central location don't seem very reliable (and I don't want to sync personal notes to some public cloud).<p>So for me, an AI that suggests stuff would be annoying.  An AI that could take some vague search terms and my history and could pull old information out of notes that don't necessarily have the keywords I enter, using the context provided by my history might be useful.  So for example, I may remember I happened across a design for the DSP algorithms in guitar pedals, but the URL or note may not even mention DSP, so something that could turn a search for "guitar pedal DSP" into finding a link for an audio processing web page I visited would be useful.  The AI would probably have to scan all the web pages I visit to be able to store enough context to be useful for a search like that.  Doing this for 20 years or more might run into some scalability/cost issues.</p>
]]></description><pubDate>Fri, 30 Jan 2026 23:14:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=46831278</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46831278</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46831278</guid></item><item><title><![CDATA[New comment by rapjr9 in "White House seeks emergency power auction for largest US electric grid"]]></title><description><![CDATA[
<p>Is the root of the problem buying more power or building more grid?</p>
]]></description><pubDate>Fri, 16 Jan 2026 23:50:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=46653758</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46653758</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46653758</guid></item><item><title><![CDATA[New comment by rapjr9 in "Provenance Is the New Version Control"]]></title><description><![CDATA[
<p>There may be a more subtle issue here.  When the specification is interpreted by an LLM that is different than it being interpreted by a person.  From the LLM you  get a kind of average of how a lot of people wrote that "kind" of code.  From the person you get a specific interpretation of the spec into code that fits the task.  Different people can have different interpretations, but that is not the same as the random variations LLM's produce.  To get the same kind of fine tuning a person can do while coding (for example realizing the spec needs to change) from an LLM you need a very precise spec to start with, one that includes a lot of assumptions that are not included in current specs, but which are expected from people.  I see further complications with getting an LLM to generate code where the spec changes, like say now you want to port the same spec to generate code on new computer architectures.  So now specs need architecture dependent specifications?  Some backwards compatibility needs to be maintained also, if the LLM regenerates ALL of the code each time, then the testing requirements balloon.</p>
]]></description><pubDate>Tue, 13 Jan 2026 11:59:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=46599894</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46599894</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46599894</guid></item><item><title><![CDATA[New comment by rapjr9 in "Researchers discover molecular difference in autistic brains"]]></title><description><![CDATA[
<p>“We have found this really important, never-before-understood difference in autism that is meaningful, has implications for intervention, and can help us understand autism in a more concrete way than we ever have before,”<p>So we might be able to make all the non-autistic people autistic?  What would the world be like if everyone was mildly autistic?</p>
]]></description><pubDate>Mon, 29 Dec 2025 03:51:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=46417291</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46417291</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46417291</guid></item><item><title><![CDATA[New comment by rapjr9 in "Why I don’t root for the Many Worlds team"]]></title><description><![CDATA[
<p>How does many worlds justify the doubling of energy with each quantum split?  Probability can double all the energy in existence for every quantum fluctuation?  Is energy conserved between realities?  If not, that makes reality a very strange place.  We could potentially use that to create infinite energy, infinite people, planets we could grab, if we could move stuff between worlds.</p>
]]></description><pubDate>Tue, 09 Dec 2025 13:13:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=46204595</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46204595</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46204595</guid></item><item><title><![CDATA[New comment by rapjr9 in "Airloom – 3D Flight Tracker"]]></title><description><![CDATA[
<p>Not everyone sees color exactly the same way, for example some people can see a little into the IR and UV.  While the pilots may not be colorblind, the people who repair the displays might be.  Situations can also make pilots colorblind, like strong glare coming through a window.  It's better to have an unambiguous display that is easy to interpret rather than to rely on something that can be subjective like color.  People can only reliably identify a few distinct colors, so if you have 300 kinds of planes and missiles to identify using shades of red and purple doesn't work so well.  An ID number next to an icon can handle thousands of kinds of entities.  People can tell color #F0479E is different then #F04750 when comparing them side by side, but they probably can't tell you what the exact name of each shade is, and at a glance they might think they are both the same color.  So it's not so much colorblindness as it is the limits of human perception.  What I call Hunter Green and English Racing Green might look like the same color to you.</p>
]]></description><pubDate>Mon, 01 Dec 2025 04:22:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=46103451</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46103451</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46103451</guid></item><item><title><![CDATA[New comment by rapjr9 in "Airloom – 3D Flight Tracker"]]></title><description><![CDATA[
<p>Yes, it was supposed to be an alternative graphic for a cockpit radar display in a jet fighter.  The goal for any such display is to convey maximum information at a glance.  I got feedback from a fighter pilot who said he wouldn't use it.  Most people don't think in 3D, they think in 2D.  Pilots have to think in 3D to some extent, but in a battle a fighter pilot wants to know what they immediately need to pay attention to, which is usually something heading directly at them (another jet or missile) and they mostly want to know the direction it is coming from, not so much what its altitude is.  I made the path histories fade out so they didn't get too long and clutter the screen.  The vertical bars were calibrated to indicate a specific distance so they also gave an idea of velocity.  It would be possible to add/remove things from the display based on some automatic assessments of priority (i.e., remove everything not headed at the pilot, though having things appear and disappear can be confusing also).  The aircraft icons were actual wireframe models representing the type of the aircraft, but had to be oversize to see them, which added some confusion also.  The pilot found a fixed size icon with a few numbers next to it and highlighting for approaching/receding much more useful.  Took me a long time to digitize them with just a ruler.  While such a display may not have a technical use, it might be useful in advertising, showing travelers at an airport what is going on around the airport at the moment for example.</p>
]]></description><pubDate>Sat, 29 Nov 2025 04:24:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=46085154</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46085154</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46085154</guid></item><item><title><![CDATA[New comment by rapjr9 in "Airloom – 3D Flight Tracker"]]></title><description><![CDATA[
<p>Cool, I tried something similar 30 years ago working for a military contractor:<p><a href="http://zoom.interoscitor.com/PetersonEnterprises/Consulting/airspace01.jpg" rel="nofollow">http://zoom.interoscitor.com/PetersonEnterprises/Consulting/...</a><p>I was asked to come up with a 3D display of the airspace around an aircraft for the pilot to use and which could replace the 2D displays used then.  People were impressed, but decided it was impractical for a variety of reasons.  You can't really tell where the aircraft are relative to each other and the ground without rotating the display (which means the pilot loses their orientation), and there are no altitude indicators and it's difficult to tell where each aircraft is relative to the others.  (Which is why I added the vertical lines and ground tracks.)  Also things get visually messy when several aircraft are close together, even if you use different colors (which doesn't work for the colorblind).  For example, could you use this display to tell if a collision is imminent near ground level in proximity to an airport?  The display does give you a high level sense of what is going on in the airspace; it may not have enough details to be of practical use to pilots and air traffic controllers.  I'd suggest consulting with them to get feedback.  Maybe this would be practical as a VR display?  How did they solve this in the F-35 helmet display?</p>
]]></description><pubDate>Sat, 29 Nov 2025 00:12:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=46084032</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=46084032</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46084032</guid></item><item><title><![CDATA[New comment by rapjr9 in "The Department of War just shot the accountants and opted for speed"]]></title><description><![CDATA[
<p>What is perhaps more important is how this transition will be managed.  Are the old methods just being halted and all projects halted and the new methods will take over whenever they start producing products?  Switching horses midstream could end up destroying both old and new acquisitions without a good plan.  This seems like something the Trump administration has continually failed at, they break things first, then try to figure out what to replace it with while chaos ensues.  Possibly they will have to fund much of the existing plans while simultaneously funding the ramp up of the new plan, perhaps doubling the cost of acquisition for a while.  Even if the new plan is faster overall, there may still be a five year delay before products start to appear from factories.</p>
]]></description><pubDate>Wed, 12 Nov 2025 02:05:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=45895591</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45895591</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45895591</guid></item><item><title><![CDATA[New comment by rapjr9 in "Commerce committee approves AM radio requirement for cars"]]></title><description><![CDATA[
<p>So next we should bring back the air raid sirens and bomb shelters.</p>
]]></description><pubDate>Sat, 08 Nov 2025 01:29:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=45853258</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45853258</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45853258</guid></item><item><title><![CDATA[New comment by rapjr9 in "AI and Copyright: Expanding copyright hurts everyone"]]></title><description><![CDATA[
<p>These are their alternatives:<p>What neither Big Tech nor Big Media will say is that stronger antitrust rules and enforcement would be a much better solution. 
What’s more, looking beyond copyright future-proofs the protections. Stronger environmental protections, comprehensive privacy laws, worker protections, and media literacy will create an ecosystem where we will have defenses against any new technology that might cause harm in those areas, not just generative AI.</p>
]]></description><pubDate>Tue, 04 Nov 2025 22:10:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=45816432</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45816432</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45816432</guid></item><item><title><![CDATA[New comment by rapjr9 in "Studies increasingly find links between air pollutants and dementia"]]></title><description><![CDATA[
<p>They don't seem to have considered fungus spores as PM2.5 either.  Seems like a single spore could cause more damage than many carbon particles.</p>
]]></description><pubDate>Mon, 03 Nov 2025 04:29:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=45795895</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45795895</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45795895</guid></item><item><title><![CDATA[New comment by rapjr9 in "New analog chip capable of outperforming top-end GPUs by as much as 1000x"]]></title><description><![CDATA[
<p>This group has had some success turning machine learning algorithms into low power analog chips:<p><a href="https://sites.dartmouth.edu/odame/" rel="nofollow">https://sites.dartmouth.edu/odame/</a><p>Not the same as general purpose training type computations though.</p>
]]></description><pubDate>Sun, 02 Nov 2025 03:16:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=45787607</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45787607</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45787607</guid></item><item><title><![CDATA[New comment by rapjr9 in "US banks' private credit loan exposure nears $300B"]]></title><description><![CDATA[
<p>If this is being recognized as a systemic problem should not the government step in and regulate?  Why do they have to wait until after a crash to do anything?  Just a statement that there will be no bailout could moderate behavior.</p>
]]></description><pubDate>Mon, 27 Oct 2025 11:44:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=45719856</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45719856</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45719856</guid></item><item><title><![CDATA[New comment by rapjr9 in "ICE Will Use AI to Surveil Social Media"]]></title><description><![CDATA[
<p>Can't anyone use AI to surveil social media, even ordinary citizens?  It seems like it would be easy to surveil ICE, the police, immigrants, all politicians, the military, businesses, government, individuals, groups, anyone and anything anyone has an interest in.  Is the future everyone surveilling everyone else?  There used to be web services that let you set up "standing queries" for anything you were interested in.  In a sense chatbots already contain a historical record of the internet in compressed format and allow anyone to do historical queries on anything, limited only to what has been accessible on the internet.  "Googling someone" is becoming "ChatGPTing someone".  People felt Googling someone was somewhat rude and parents warned their children to limit what they posted in case future employers looked them up.  Same for anyone employed, they are learning to be careful what they post in case their employers see it.  Seems like free speech is being suppressed because it can be used against you by various people and groups already.  This may help explain why the web has become less interesting and anonymous posting is ubiquitous.</p>
]]></description><pubDate>Mon, 27 Oct 2025 11:25:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=45719710</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45719710</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45719710</guid></item><item><title><![CDATA[New comment by rapjr9 in "RFK Jr.'s MAHA wants to make chemtrail conspiracy theories great again"]]></title><description><![CDATA[
<p>Fortunately the solution is easy, cloudbusters:<p><a href="https://en.wikipedia.org/wiki/Cloudbuster" rel="nofollow">https://en.wikipedia.org/wiki/Cloudbuster</a><p>Basically a metal rod/pipe with a good earth ground pointed at the sky.  How conductive are trees?  Maybe trees already act as cloudbusters, so we should plant more trees!  Someone should apply for an NIH grant to try this.  Don't know if I'm being sarcastic, it might actually have health benefits, there doesn't seem to have been much independent research.</p>
]]></description><pubDate>Fri, 17 Oct 2025 01:58:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=45612655</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45612655</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45612655</guid></item><item><title><![CDATA[New comment by rapjr9 in "China's New Rare Earth and Magnet Restrictions Threaten US Defense Supply Chains"]]></title><description><![CDATA[
<p>Rare earths are not rare on Earth, but production of rare earth metals is rare and difficult and almost exclusively done by China.  There are two other factors that make this announcement important though.  One is the use of the foreign direct product rule, which means China is requiring all use of rare earths produced by China to be tracked and require approval, and all military applications are not going to be approved (why would China arm it's competitors?)  The other factor is that while things like F-35's may only use a few hundred pounds of rare earths each and there are not many of them, things like smart bombs and semiconductors need rare earths and there are a LOT of those.  If China can truly cut the US from China's production, it's likely going to greatly reduce the US's current attempts to scale up both weapons production and the more advanced semiconductors (like GPU's for AI) until the US can get alternate sources.  It will take 5-10 years to build alternate sources (some small pilot projects are near completion, but scaling up will take a while), so during that time the US could be short on weapons and compute power.  The US military has done some stock piling of rare earths, but it's a fairly small stockpile.  So worst case is no weapons or AI for the US for some time.<p>There will also be consumer effects.  EV's, drones, phones, TV's, RC cars, and more all use rare earths or rare earth magnets.  Because rare earths were cheap before, most quality electric motors now use them.  China can now cut off those uses also if they want to.<p>How effectively China can halt sales to the US is debatable.  The CIA could start a toy manufacturer front company and buy rare earth magnets for example.  China may eventually find out and cut them off, but then the CIA can just start a new front company.  Buying from European or Asian companies as intermediaries may be difficult to enforce.  If a war started over Taiwan, China could just cut off all shipments to the world.  So there is perhaps a five year window here where China can exercise power via rare earths.  Beyond that alternate sources will likely be in place.<p>So one thing China is "saying" here is that if the US is going to cut China off from advanced computer chips, China is going to make it impossible to make those chips so the US won't have them either.  This could be enough to bring a sudden halt to US AI investment.  It would definitely introduce a big new uncertainty.</p>
]]></description><pubDate>Sun, 12 Oct 2025 04:15:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=45555168</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45555168</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45555168</guid></item><item><title><![CDATA[New comment by rapjr9 in "Walmart U.S. moves to eliminate synthetic dyes across all private brand foods"]]></title><description><![CDATA[
<p>Indeed.  So what is missing from the list?  Perhaps emulsifiers?</p>
]]></description><pubDate>Wed, 01 Oct 2025 19:49:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=45442484</link><dc:creator>rapjr9</dc:creator><comments>https://news.ycombinator.com/item?id=45442484</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45442484</guid></item></channel></rss>