<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: jldugger</title><link>https://news.ycombinator.com/user?id=jldugger</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 15 Apr 2026 09:43:59 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jldugger" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jldugger in "YouTube now world's largest media company, topping Disney"]]></title><description><![CDATA[
<p>> I watch tons of bike races and highlights on youtube TV and then almost all my ads are for cars, generic laundry detergent, and obvious scam crap products, anything but something bike related<p>If I had to guess, niche products for niche interests have small ad budgets, but the random detergent ad buyer is happy to bid on anyone's eyeballs. You can't target ad buys that don't exist!<p>On the other hand, before I bought YT premium I was regularly getting ads for Chevron gas in Spanish (which I don't speak), and would be unsurprised if YT ad enshittification drove premium sales.</p>
]]></description><pubDate>Tue, 14 Apr 2026 20:28:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=47771073</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47771073</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47771073</guid></item><item><title><![CDATA[New comment by jldugger in "Show HN: Kelet – Root Cause Analysis agent for your LLM apps"]]></title><description><![CDATA[
<p>Every six months or so, someone at work does a hackathon project to automate outage analysis work SRE would likely perform. And every one of them I've seen has been underwhelming and wrong.<p>There's like three reasons for this disconnect.<p>1. The agents aren't expert at your proprietary code. They can read logs and traces and make educated guesses, but there's no world model of your code in there.<p>2. The people building these apps are unqualified to review the output. I used to mock narcissists evaluating ChatGPT quality by asking it for their own biography, but they're at least using a domain they are an expert in. Your average MLE has no profound truths about kubernetes or the app. At best, they're using some toy "known broken" app to demonstrate under what are basically ideal conditions, but part of the holdout set should be new outages in your app.<p>3. SREs themselves are not so great at causal analysis. Many junior SRE take the "it worked last time" approach, but this embeds a presumption that whatever went wrong "last time" hasn't been fixed in code. Your typical senior SRE takes a "what changed?" approach, which is depressingly effective (as it indicates most outages are caused by coworkers). At the highest echelons, I've seen research papers examining meta-stablity and granger causality networks, but I'm pretty sure nobody in SRE or these RCA agents can explain what they mean.<p>> The key insight: individual session failures look random. But when you cluster the hypotheses, failure patterns emerge.<p>My own insight is mostly bayesian. Typical applications have redundancy of some kind, and you can extract useful signals by separating "good" from "bad". A simple bayesian score of (100+bad)/(100+good) does a relatively good job of removing the "oh that error log always happens" signals. There's also likely a path using clickhouse level data and bayesian causal networks, but the problem is traditional bayesian networks are hand crafted by humans.<p>So yea, you can ask an LLM for 100 guesses and do some kind of k-means clustering on them, but you can probably do a better job doing dimensional analysis first and passing that on to the agent.</p>
]]></description><pubDate>Tue, 14 Apr 2026 18:01:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=47769000</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47769000</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47769000</guid></item><item><title><![CDATA[New comment by jldugger in "Tax Wrapped 2025"]]></title><description><![CDATA[
<p>Same reason doctors from around the world move to the US.</p>
]]></description><pubDate>Mon, 13 Apr 2026 21:47:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=47758259</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47758259</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47758259</guid></item><item><title><![CDATA[New comment by jldugger in "Google removes "Doki Doki Literature Club" from Google Play"]]></title><description><![CDATA[
<p>IIRC, not controls but the second act onward features "4th wall" breaks and glitches.</p>
]]></description><pubDate>Mon, 13 Apr 2026 00:20:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=47746024</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47746024</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47746024</guid></item><item><title><![CDATA[New comment by jldugger in "Google removes "Doki Doki Literature Club" from Google Play"]]></title><description><![CDATA[
<p>> If you want to play bishoujoge<p>This is almost certainly not banned for pornographic reasons.</p>
]]></description><pubDate>Mon, 13 Apr 2026 00:16:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=47746004</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47746004</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47746004</guid></item><item><title><![CDATA[New comment by jldugger in "Netflix Prices Went Up Again – I Bought a DVD Player Instead"]]></title><description><![CDATA[
<p>About half of the DVDs and Blu-rays I get from the library skip at some point in my PS5. They're usually not visibly scratched, though usually the scratches that matter are on the top not the bottom.</p>
]]></description><pubDate>Thu, 09 Apr 2026 21:36:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=47710492</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47710492</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47710492</guid></item><item><title><![CDATA[New comment by jldugger in "Netflix Prices Went Up Again – I Bought a DVD Player Instead"]]></title><description><![CDATA[
<p>> DVD Inbox and Cafe DVD is $20/mo for 2 discs at a time, with unlimited discs and a 5 day guarantee.<p>This is about what we paid for Netflix in 2006. Especially after accounting for inflation.</p>
]]></description><pubDate>Thu, 09 Apr 2026 21:33:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=47710456</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47710456</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47710456</guid></item><item><title><![CDATA[New comment by jldugger in "Decisions that eroded trust in Azure – by a former Azure Core engineer"]]></title><description><![CDATA[
<p>Like, what did the OP expect?</p>
]]></description><pubDate>Fri, 03 Apr 2026 00:21:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47621939</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47621939</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47621939</guid></item><item><title><![CDATA[New comment by jldugger in "Desk for people who work at home with a cat"]]></title><description><![CDATA[
<p>I'm sorry Japan, but this is not how cats work. Cat "flight or fight" response is to run and climb a tree. They prefer to be up high, not down low in some cabinet. Feels safer for naps.<p>Something like <a href="https://desknest.com" rel="nofollow">https://desknest.com</a> seems much more likely to work.</p>
]]></description><pubDate>Fri, 27 Mar 2026 18:47:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=47546707</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47546707</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47546707</guid></item><item><title><![CDATA[New comment by jldugger in "DeployTarot.com – Tarot card reading for deployments"]]></title><description><![CDATA[
<p>Indeed <a href="https://youtu.be/KIZt9YPAPZo?t=289" rel="nofollow">https://youtu.be/KIZt9YPAPZo?t=289</a></p>
]]></description><pubDate>Thu, 26 Mar 2026 23:04:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=47536988</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47536988</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47536988</guid></item><item><title><![CDATA[New comment by jldugger in "DeployTarot.com – Tarot card reading for deployments"]]></title><description><![CDATA[
<p>Does it make more sense after you've seen this Cloudflare ad? <a href="https://youtu.be/KIZt9YPAPZo?t=289" rel="nofollow">https://youtu.be/KIZt9YPAPZo?t=289</a></p>
]]></description><pubDate>Thu, 26 Mar 2026 23:04:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=47536985</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47536985</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47536985</guid></item><item><title><![CDATA[New comment by jldugger in "Apple randomly closes bug reports unless you "verify" the bug remains unfixed"]]></title><description><![CDATA[
<p>> Imagine trying to run a burndown of your sprint when zero of the Radars are closed, because they have to be verified in production before being closed, meaning you cannot verify until after the release.<p>I think most teams use verify as a "closed" state to hide all that messiness. But sure, zero bugs is a project management fiction and produces perverse outcomes.</p>
]]></description><pubDate>Wed, 25 Mar 2026 21:36:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=47523610</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47523610</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47523610</guid></item><item><title><![CDATA[New comment by jldugger in "Ball Pit"]]></title><description><![CDATA[
<p>If you make the assumption that "AA" is some form of antialiasing, it's not too bad: first scholar[1] hit expands the acronym to  Temporal Reprojection Anti-Aliasing<p><pre><code>    [1]: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=traa+anti+aliasing&btnG=</code></pre></p>
]]></description><pubDate>Wed, 25 Mar 2026 21:24:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=47523469</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47523469</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47523469</guid></item><item><title><![CDATA[New comment by jldugger in "Attention Residuals"]]></title><description><![CDATA[
<p>>  If anything, I'd expect it to break down when those non-existent students are supposed to take the Zhongkao exam in order to graduate, not at the senior high school admissions stage.<p>Reasonable. If I were more conspiratorial, I might suggest that it's precisely because people are watching college exam numbers that 9th grade -> high school is where the break is. Or could just be the result of compounding growth from two competing officials making different exaggerated claims decades ago.<p>But really, the high school enrollment gap is not super germane to my main point: we may have seen peak China population, stemming largely from a smaller incoming cohort. The sidebar about offsetting that decline with increased enrollment percentages is interesting, I'm just default skeptical.<p>> cited Chinese population statistics upthread, but when somebody else does it, they're suddenly unreliable???<p>My cite appears to use UN data, not the PRC's official stats (at least not directly). But I'm pretty sure the official stats are also showing the same trend, just at a slower rate of decline. I mean, it's the entire reason for loosening the one-child policy to two, then to three.</p>
]]></description><pubDate>Sat, 21 Mar 2026 21:14:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=47471448</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47471448</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47471448</guid></item><item><title><![CDATA[New comment by jldugger in "Attention Residuals"]]></title><description><![CDATA[
<p>Unfortunately it's hard to take China's population / enrollment demographics at face value. There's many incentives in the system to overstate growth, and cross checks between different reports that _should_ be correlated suggest they're quite overstated.<p>It's bad enough they passed some legislation a few years ago[1], but the damage has in many senses already been done. And it's unclear how effective the changes will be. So it's entirely possible those 3 million missing high schoolers never existed.<p>[1]: <a href="https://www.reuters.com/world/china/chinas-top-legislative-body-approves-amended-statistics-law-combat-data-fraud-2024-09-13/" rel="nofollow">https://www.reuters.com/world/china/chinas-top-legislative-b...</a></p>
]]></description><pubDate>Fri, 20 Mar 2026 23:14:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=47462094</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47462094</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47462094</guid></item><item><title><![CDATA[New comment by jldugger in "Attention Residuals"]]></title><description><![CDATA[
<p>> It's pure statistics<p>I'm not so sure about that: <a href="https://www.populationpyramid.net/china/2026/" rel="nofollow">https://www.populationpyramid.net/china/2026/</a> suggests peak high school in china was years ago.</p>
]]></description><pubDate>Fri, 20 Mar 2026 22:09:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=47461345</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47461345</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47461345</guid></item><item><title><![CDATA[New comment by jldugger in "How the Turner twins are mythbusting modern technical apparel"]]></title><description><![CDATA[
<p>> the data showed that on summit night, the average body temperature difference between the twin in modern down and the twin in complicated layers of silk, wool, and gabardine was a staggering 1.8°C.
> “In a hundred years, you’ve gained—arguably—one degree of efficiency per 50 years,” Ross reveals.<p>Depending on where the baseline is, 1.8 degrees could be huge! But more importantly, heat dissapation is a non-linear function. The warmer you are relative to your environment, the more energy is lost. While Shackleton's kit forms a lower baseline, it probably makes sense to imagine how some imaginary perfect vacuum insulated sleeping bag would perform.</p>
]]></description><pubDate>Thu, 19 Mar 2026 21:33:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=47446538</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47446538</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47446538</guid></item><item><title><![CDATA[New comment by jldugger in "Innocent woman jailed after being misidentified using AI facial recognition"]]></title><description><![CDATA[
<p>>Except in "Brazil" it was a mechanical error in a deterministic machine caused by an invasive outside actor.<p>It was a literal bug in the computer. Metaphor as humor!</p>
]]></description><pubDate>Fri, 13 Mar 2026 00:23:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=47359182</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47359182</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47359182</guid></item><item><title><![CDATA[New comment by jldugger in "ATMs didn’t kill bank teller jobs, but the iPhone did"]]></title><description><![CDATA[
<p>Ever deposit a check via PC browser?</p>
]]></description><pubDate>Thu, 12 Mar 2026 18:46:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=47355338</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47355338</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47355338</guid></item><item><title><![CDATA[New comment by jldugger in "5,200 holes carved into a Peruvian mountain left by an ancient economy"]]></title><description><![CDATA[
<p>With what? It's not exactly a fertile ground for growing things, and at the top of a hill.</p>
]]></description><pubDate>Thu, 12 Mar 2026 00:01:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=47344337</link><dc:creator>jldugger</dc:creator><comments>https://news.ycombinator.com/item?id=47344337</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47344337</guid></item></channel></rss>