<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: jp57</title><link>https://news.ycombinator.com/user?id=jp57</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 18 Aug 2026 16:52:50 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jp57" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jp57 in "California's new tire efficiency rules could save drivers $1B a year"]]></title><description><![CDATA[
<p>This.  My wife and I both thought the low-rolling-resistance tires on our hybrids felt very unsafe in the rain.  My Audi A3-etron's tires were also by far the least durable tires I have had on a car in my 40+ years of driving.  I prematurely replaced or repaire more tires on that car in 8 years than on all the other cars I've had put together.<p>I eventually switched to a midsize truck, because I need to do some light towing sometimes, and my first thought was, <i>it feels so much safer in the rain</i>.</p>
]]></description><pubDate>Tue, 18 Aug 2026 16:39:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=49348345</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49348345</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49348345</guid></item><item><title><![CDATA[New comment by jp57 in "Colorado River plummets as lakes Powell and Mead drop to record lows"]]></title><description><![CDATA[
<p><i>The shrinking reservoirs are the immediate result of record-low snowpack this winter, which was erased by record heat in the spring. Melted snowpack creates most of the Colorado’s flow during the dry summer months. But as the Southwestern climate has grown hotter and drier, the river’s flow has become smaller and less reliable.</i><p>Legitimate question:  I can understand that record-low snowpack would cause less water to flow into the lake, but the "erasure" of the snow pack by heat is just melting that would be captured in the lake, right?  So if the record-low snowpack had been followed by record cold, would we have even less water in the lake?</p>
]]></description><pubDate>Mon, 17 Aug 2026 22:41:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=49338663</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49338663</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49338663</guid></item><item><title><![CDATA[New comment by jp57 in "Working with AI feels more like leadership than coding"]]></title><description><![CDATA[
<p>Leaving aside the quibbling over the meaning of the word leadership, I'll say I personally agree with this sentiment.  I returned to a senior IC role after six years managing a small team just as agentic coding was starting to happen.  The timing was perfect, I got about 8 months to get my chops back up by hand (I had never really <i>fully</i> stepped away from coding) before the good agentic tools became available at my company.<p>It was interesting to observe the other engineers around me, none of whom had ever managed people.  They tended to try to "program" the agent to produce exactly the code that they envisioned, and were very cautious, seemingly quite afraid that the agent would do something unexpected.<p>Having managed engineers, I was much more comfortable with asking someone to do something and having them do something more-or-less different from what I was expecting or had envisioned.  Sometimes that was worse, sometimes better, than what I'd had in mind, but it was very rare that I would ask an engineer to do something and they would produce exactly the thing I'd imagined.<p>Having had that experience, I was quite comfortable giving a task to an agent and saying to myself, "Okay, let's see what you come up with," and then evaluating the result.  And <i>as with people</i> I knew I had to learn the right way to talk to the agent in order to make myself understood, just as I'd had to learn the right way to talk to each person on my team.<p>The big differences were that (a) I didn't have to wait days or weeks to see what the agent came up with so the cost of being misunderstdood was much lower, and (b) the agents generally had much, much better reading comprehension than they typical engineer, so in fact I was misunderstood less often.</p>
]]></description><pubDate>Sat, 15 Aug 2026 17:16:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=49312366</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49312366</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49312366</guid></item><item><title><![CDATA[New comment by jp57 in "The punched card tabulator"]]></title><description><![CDATA[
<p><i>While spitting out numbers, these machines generated exorbitant profits over decades for the company that would become known as IBM.</i><p>Funny that IBM would describe its own profits as “exorbitant”.  A little truth in advertising for once?</p>
]]></description><pubDate>Thu, 13 Aug 2026 12:51:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=49285185</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49285185</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49285185</guid></item><item><title><![CDATA[New comment by jp57 in "5th Heat Dome Expands Across Europe: 40°C+ Target Western and Central Europe"]]></title><description><![CDATA[
<p>Having more old people is even more of a reason to make it easy to get air conditioning.<p>I live in the USA, and there are certainly many ways in which the USA is negligent on health care, but making sure people can stay cool in hot weather isn't one of them.<p>In any case, this isn't a zero sum game, where the USA's negligence in one area negates Europes negligence in another.</p>
]]></description><pubDate>Wed, 12 Aug 2026 18:05:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=49276385</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49276385</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49276385</guid></item><item><title><![CDATA[New comment by jp57 in "5th Heat Dome Expands Across Europe: 40°C+ Target Western and Central Europe"]]></title><description><![CDATA[
<p>Don't they have to heat them in the winter too?  That also costs more and creates more emissions without insulation.</p>
]]></description><pubDate>Wed, 12 Aug 2026 15:26:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=49273915</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49273915</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49273915</guid></item><item><title><![CDATA[New comment by jp57 in "5th Heat Dome Expands Across Europe: 40°C+ Target Western and Central Europe"]]></title><description><![CDATA[
<p><i>[H]ow do you propose Europe protect not only people from the heat, but [all these other things]?</i><p>Why does it have to be framed as all-or-nothing?  I agree that using air conditioning to reduce the number of people who die from the heat does nothing to help with the problem of jellyfish, but how is that relevant, exactly?</p>
]]></description><pubDate>Wed, 12 Aug 2026 15:23:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=49273864</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49273864</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49273864</guid></item><item><title><![CDATA[New comment by jp57 in "5th Heat Dome Expands Across Europe: 40°C+ Target Western and Central Europe"]]></title><description><![CDATA[
<p>The warming is terrible and deadly, AND ALSO Europeans are negligent in not protecting themselves however they can.<p>The idea that Europe could slow warming by not using air-conditioning is absurd, when the emissions mostly come from elsewhere.  France, in particular, gets most of its energy from nuclear power, but also makes it very hard to get <i>climatisation</i>.</p>
]]></description><pubDate>Wed, 12 Aug 2026 15:06:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=49273562</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49273562</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49273562</guid></item><item><title><![CDATA[New comment by jp57 in "The Dunning-Kruger effect may just be a data artefact (2020)"]]></title><description><![CDATA[
<p>There are so many strange things about the original Dunning-Kruger plot.  Why use quartiles for one axis and percentile for the other?   Why use higher precision for the subject's estimate, which is by definition imprecise, and lower precision for the true score, which is known precisely?<p>I think the only conclusion you can draw from that plot is <i>everyone thinks they'll be in the third quartile</i>.</p>
]]></description><pubDate>Mon, 03 Aug 2026 20:44:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=49161169</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=49161169</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49161169</guid></item><item><title><![CDATA[New comment by jp57 in "The End of Creativity"]]></title><description><![CDATA[
<p>I don't think this is the death of creativity.  It is just a new kind of non-creativity.  He is comparing to a baseline of zero (or perhaps negative) creativity before AI.<p>Without AI, it's likely that neither of these videos would have been made, right?  Five years ago, was it a normal thing for even one, much less two, groups of wedding guests to produce a video to show at a wedding, and if so, would the video even have been good?  I mean actually good, not "it's the thought that counts, A-for-effort" good.<p>Isn't this like saying, "I decided to write a song for my friend's wedding, and I used AI to help me, and I played it and everyone liked it, and then someone <i>else</i> played the song that <i>they</i> had AI write for them, and it sounded just like mine, and everyone loved that too!"<p>Writing songs is something that's been around long enough, that if guests had made a habit of performing their original songs at weddings, even a graybeard like me would have experienced it.   The baseline to compare to is <i>no original songs were performed</i>.<p>As it happens, in the weddings I've attended, I've heard exactly one such wedding song, and it was awful.</p>
]]></description><pubDate>Wed, 15 Jul 2026 23:00:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=48928307</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48928307</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48928307</guid></item><item><title><![CDATA[New comment by jp57 in "My Mathematical Regression"]]></title><description><![CDATA[
<p>I think one of the saddest thing is that the kind of person who would recognize, "we can solve this seemingly complicated problem by just applying this formula", would often have trouble even getting recognized in many corporate environments.<p>I managed a guy like that.  He was capable of very complex thinking, but he wasn't in love with complexity, he was in love with simplicity.  His solutions tended to be of the form, "we can ignore all these things, and just focus on X, and it will provide all the value."   He'd notice something and simplify it and the benefit to the company would be measured in multiples of his salary.<p>Every manager who'd ever directly managed him knew what a treasure he was, but it was often hard for us to convince others of the value of his solutions because they were so simple, and people were convinced that hard problems must have complex solutions. (or else they would have solved them, right?)<p>He eventually got bored. He retired and joined a seminary.</p>
]]></description><pubDate>Mon, 22 Jun 2026 18:33:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=48634085</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48634085</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48634085</guid></item><item><title><![CDATA[New comment by jp57 in "GrapheneOS has been ported to Android 17"]]></title><description><![CDATA[
<p>What does it mean for an OS to be ported to another OS?   Do they mean "ported to devices that support Android"?</p>
]]></description><pubDate>Tue, 16 Jun 2026 22:47:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=48563329</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48563329</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48563329</guid></item><item><title><![CDATA[New comment by jp57 in "Feds freaked over Fable 5 after 'fix this code', not jailbreak, say researchers"]]></title><description><![CDATA[
<p>I think this brings out the cognitive dissonance around "safety" regarding cyber security:<p>a) In order to make us safe, the LLM should help us find (and fix) the vulnerabilities in our own code.<p>b) In order for us to be safe, the LLM should not find vulnerabilities in other people's code.<p>I don't think this is resolvable in a way where both (a) and (b) win.</p>
]]></description><pubDate>Tue, 16 Jun 2026 16:46:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=48558099</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48558099</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48558099</guid></item><item><title><![CDATA[New comment by jp57 in "A jacket that harvests drinking water from the air"]]></title><description><![CDATA[
<p>Not specifically about drinking water or jackets, but I've often wondered why air-conditioning condensate is plumbed into the sewer instead of someplace useful.  An A/C is a water-from-air device, and they run in much of the year in most homes in the southern US.<p>The typical design that I've seen plumbs the main condensate drain into the sewer, and usually has an overflow that dumps somewhere harmless if the main line clogs.  (like out of the ceiling over the bathtub or out of an exterior wall in a visible location, so you can see it and fix it)<p>The few times I've seen the overflow, it's been quite a fair amount of water.  Certainly enough to help with garden irrigation, if nothing else.</p>
]]></description><pubDate>Fri, 12 Jun 2026 18:16:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=48507514</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48507514</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48507514</guid></item><item><title><![CDATA[New comment by jp57 in "You'll never guess who made the first wireless telephone"]]></title><description><![CDATA[
<p>I think he could have gotten away with naming his daughter Photophone, but he would have to pronounce it as if she were a character from an ancient greek epic:  phoTOphoNEE.</p>
]]></description><pubDate>Sun, 07 Jun 2026 21:05:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=48438535</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48438535</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48438535</guid></item><item><title><![CDATA[New comment by jp57 in "Ask HN: What was your "oh shit" moment with GenAI?"]]></title><description><![CDATA[
<p>It wasn’t wrong, though, in my case.</p>
]]></description><pubDate>Sat, 06 Jun 2026 12:13:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=48424224</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48424224</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48424224</guid></item><item><title><![CDATA[New comment by jp57 in "Ask HN: What was your "oh shit" moment with GenAI?"]]></title><description><![CDATA[
<p>Actually seems absurdly simple now, but sometime last year I was trying to figure out what I'd need to tow my daughter's car cross country with my truck: what are the trailer/dolly options, what do they cost, can my truck actually tow the combined weight, etc.<p>I started out prompting ChatGPT kinda how I would with Google, one small prompt at a time, asking about various details.  But after one or two of those I just tried "I want to tow a car of make A with my truck model B, from point C to point D, what are my options?"   And it wrote me a report with comparison tables and computed towing weights and other details for different options.<p>At that point, I was like "Oh. This is different.  And it's just the beginning."</p>
]]></description><pubDate>Fri, 05 Jun 2026 21:32:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=48418620</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48418620</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48418620</guid></item><item><title><![CDATA[New comment by jp57 in "Stop Ruining It"]]></title><description><![CDATA[
<p>Just recently it occurred to me that the sage parenting advice, "Don't try to make a happy baby happier," applies to so many other things.  Once I had this idea, it seemed like everywhere I looked were people trying to make happy babies happier.  Improving tools that work fine, optimizing things where the available margin for improvement is small, etc.</p>
]]></description><pubDate>Tue, 02 Jun 2026 17:45:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=48373574</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48373574</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48373574</guid></item><item><title><![CDATA[New comment by jp57 in "AI eats the world (Spring 26) [pdf]"]]></title><description><![CDATA[
<p>That’s far more believable than 10,000 elevator attendants. I was an adult in 1990 and used travel agents.  But I can’t remember ever encountering an elevator attendant.</p>
]]></description><pubDate>Sun, 31 May 2026 16:54:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=48347289</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48347289</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48347289</guid></item><item><title><![CDATA[New comment by jp57 in "Disney erased FiveThirtyEight"]]></title><description><![CDATA[
<p>I really think a majority of NYTimes and ABCnews consumers don't know the difference between a 2/3 chance (super close) of winning and 2/3 of the vote (a landslide).</p>
]]></description><pubDate>Tue, 19 May 2026 20:47:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=48199393</link><dc:creator>jp57</dc:creator><comments>https://news.ycombinator.com/item?id=48199393</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48199393</guid></item></channel></rss>