<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: harpastum</title><link>https://news.ycombinator.com/user?id=harpastum</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Thu, 28 May 2026 18:36:44 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=harpastum" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by harpastum in "Disagreement among frontier LLMs on real-world fact-checks"]]></title><description><![CDATA[
<p>Without providing definitions of "True / Mostly True / Misleading / False" to each rater, I rate the article's claim that "Only one verdict bucket can be correct per claim" as <i>false</i>.<p>Something can be simultaneously "misleading" <i>and</i> either true or false. Which category should something go in if it's "mostly false"?<p>How much can something be wrong before it goes from "mostly true" to "false" (objectively, both have some part of the fact that is not true)?<p>This is at least partly testing the model's definition of "mostly" and "misleading". Not its understanding of the fact. Claiming that this means the models have fundamental disagreement on the facts themselves is an overreach.</p>
]]></description><pubDate>Thu, 28 May 2026 12:54:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=48308266</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=48308266</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48308266</guid></item><item><title><![CDATA[New comment by harpastum in "MomBoard: E-ink display for a parent with amnesia"]]></title><description><![CDATA[
<p>If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.<p>You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.<p><a href="https://soldered.com/categories/inkplate/" rel="nofollow">https://soldered.com/categories/inkplate/</a></p>
]]></description><pubDate>Thu, 14 Nov 2024 15:39:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=42137259</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=42137259</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42137259</guid></item><item><title><![CDATA[New comment by harpastum in "MomBoard: E-ink display for a parent with amnesia"]]></title><description><![CDATA[
<p>If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.<p>You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.<p><a href="https://soldered.com/categories/inkplate/" rel="nofollow">https://soldered.com/categories/inkplate/</a></p>
]]></description><pubDate>Thu, 14 Nov 2024 15:34:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=42137198</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=42137198</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42137198</guid></item><item><title><![CDATA[New comment by harpastum in "Breaking up is hard to do: Chunking in RAG applications"]]></title><description><![CDATA[
<p>It depends on the specifics of your format, but we’ve had success embedding the questions and answers separately. If either match, you return the complete question and answer text. Make sure to deduplicate before returning, in case both match.</p>
]]></description><pubDate>Sat, 08 Jun 2024 18:00:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=40619247</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=40619247</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40619247</guid></item><item><title><![CDATA[New comment by harpastum in "Apple Vision Pro review"]]></title><description><![CDATA[
<p>I think your math is correct, and it will be very limited compared to a real-life retina screen, but I think there's also a perceived resolution increase from having binocular vision and moving.<p>If you hold your head steady while looking through a window with a plastic screen on it, things outside are obstructed. If you move your head slightly back and forth and focus in the distance, the screen pretty much disappears.<p>Your brain can do some motion smoothing to determine the "actual" content, even if it's sampled. I'm not sure how you could quantify it, and it only helps a relatively small amount, but it's there.</p>
]]></description><pubDate>Tue, 30 Jan 2024 22:22:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=39196725</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=39196725</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39196725</guid></item><item><title><![CDATA[New comment by harpastum in "Most Small Cars Are Unsafe for Backseat Passengers: IIHS"]]></title><description><![CDATA[
<p>This a strange framing, because the implication is that small cars are much less safe than others. But this article doesn't mention anything at all about SUVs/trucks. A quick search shows multiple articles saying that <i>all</i> types of cars/SUVs/trucks are doing pretty poorly with this new test on average.<p><i>Many Popular SUVs Lag Behind in Rear Seat Safety, New Crash Tests Show</i> <a href="https://www.consumerreports.org/cars/car-safety/many-popular-suvs-lag-behind-in-rear-seat-safety-a6607362245/" rel="nofollow">https://www.consumerreports.org/cars/car-safety/many-popular...</a><p>Very large 3-row SUVs might do better on this new test, but I can't actually find many examples. <i>Rivian R1S Is the Only Large SUV To Earn Top Safety Pick+ Award From IIHS</i> <a href="https://www.autoevolution.com/news/rivian-r1s-is-the-only-large-suv-to-earn-the-top-safety-pick-award-from-iihs-214463.html" rel="nofollow">https://www.autoevolution.com/news/rivian-r1s-is-the-only-la...</a></p>
]]></description><pubDate>Fri, 19 May 2023 17:19:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=36004457</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=36004457</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36004457</guid></item><item><title><![CDATA[New comment by harpastum in "The S in IoT is for Security"]]></title><description><![CDATA[
<p>The argument is that the "simpleness" of the doorbell isn't a good heuristic for the amount of impact.<p>According to wikipedia [1], the transformer on a standard doorbell can use 2-3 watts of power at all times. That's 1400-2100 watt hours per month — about <i>one hundred</i> times as much as a ring doorbell uses (Less than 20 Wh per month).<p>The cost and impact of the Ring includes more manufacturing, and I wouldn't be surprised if the Ring ended up having a larger environmental cost, but it's not as clear cut as your incredulity makes it seem.<p>[1] <a href="https://en.wikipedia.org/wiki/Doorbell" rel="nofollow">https://en.wikipedia.org/wiki/Doorbell</a></p>
]]></description><pubDate>Mon, 22 Mar 2021 17:57:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=26544264</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=26544264</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=26544264</guid></item><item><title><![CDATA[New comment by harpastum in "M1 Mac Mini Teardown"]]></title><description><![CDATA[
<p>Looks like the site is down. Here's the archive.org mirror: <a href="http://web.archive.org/web/20201118135839/https://egpu.io/forums/desktop-computing/teardown-late-2020-mac-mini-apple-silicon-m1-thunderbolt-4-usb4-pcie-4/" rel="nofollow">http://web.archive.org/web/20201118135839/https://egpu.io/fo...</a></p>
]]></description><pubDate>Wed, 18 Nov 2020 15:01:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=25137473</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=25137473</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=25137473</guid></item><item><title><![CDATA[New comment by harpastum in "Tesla’s Nemesis in China Is a Tiny $5k Electric Car from GM"]]></title><description><![CDATA[
<p>You might want to take a look at the Citroën Ami. 6000 euro including VAT. Not sure which country you're in, but it seems more likely that something street legal in France would work for you.<p><a href="https://www.citroen.com/en/Highlight/131/ami-100-electric-mobility-accessible-to-all" rel="nofollow">https://www.citroen.com/en/Highlight/131/ami-100-electric-mo...</a></p>
]]></description><pubDate>Sun, 27 Sep 2020 01:51:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=24603567</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=24603567</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=24603567</guid></item><item><title><![CDATA[New comment by harpastum in "Air conditioning's original purpose was to enable factory processes"]]></title><description><![CDATA[
<p>Depending on your climate and what you mean by "windows cracked", you would be much better off with a heat recovery ventilation (HRV) system. They have the explicit purpose of pulling in outside air while only losing about 20% of the heat difference between indoor and out.<p>With slightly open windows, you're losing a bunch of heat for very little ventilation.</p>
]]></description><pubDate>Wed, 24 Jun 2020 22:36:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=23634645</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=23634645</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=23634645</guid></item><item><title><![CDATA[New comment by harpastum in "iOS14 reveals that TikTok may snoop clipboard contents every few keystrokes"]]></title><description><![CDATA[
<p>It looks like there could be a reasonable explanation for this. There are apps that have different behavior whether or not there is text in the clipboard (e.g. enabling a "paste" button), and they're only checking that the text exists, not what it is. There's a new API that will let devs do that without triggering the user notification.<p>If TikTok is actually constantly loading the clipboard, that's obviously terrible. I'd bet this behavior is gone by the next release, and that shows how useful this new notification is.<p>Same issue with notes from that app's developer saying what's going on and how they will fix it: <a href="https://twitter.com/ecormany/status/1275903947899797505" rel="nofollow">https://twitter.com/ecormany/status/1275903947899797505</a></p>
]]></description><pubDate>Wed, 24 Jun 2020 22:23:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=23634557</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=23634557</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=23634557</guid></item><item><title><![CDATA[New comment by harpastum in "The world might run out of people (2019)"]]></title><description><![CDATA[
<p>Yes, but it seems like the grandparent was trying to fit in every polysyllabic word they could find.<p>They're saying that some groups tend to have more children and some have fewer. The groups that have more will become a larger and larger percentage of the populace (because they have more kids), and the groups that have few children will disappear. Therefore the global birth rate will go back up to the levels of a couple hundred years ago.<p>(I don't agree with this idea, just trying to present their argument with more straightforward vocabulary)</p>
]]></description><pubDate>Sun, 07 Jun 2020 15:44:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=23448166</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=23448166</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=23448166</guid></item><item><title><![CDATA[New comment by harpastum in "Covid-19 is now officially a pandemic, WHO says"]]></title><description><![CDATA[
<p>Today's XKCD is a direct response to this line of thinking: <a href="https://xkcd.com/2278/" rel="nofollow">https://xkcd.com/2278/</a><p>Just because something hasn't happened yet does not mean it's completely unpredictable. COVID-19 is coming, and if we don't put significant preventative measures in place, many more people will die from it in 2020 than the yearly flu.</p>
]]></description><pubDate>Wed, 11 Mar 2020 17:15:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=22547624</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=22547624</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=22547624</guid></item><item><title><![CDATA[New comment by harpastum in "Battery Pack Prices Fall As Market Ramps Up"]]></title><description><![CDATA[
<p>In the past I've had success using Parametrek to find good deals (and then doing my homework on the seller to make sure they're legit): <a href="http://batteries.parametrek.com/index.html?size=18650" rel="nofollow">http://batteries.parametrek.com/index.html?size=18650</a><p>Right now you can authentic 18650 Samsung cells for around $260/kWh, or 21700 Samsung cells for $165/kWh. Those are sale prices, but if you're careful and watch for deals, you can find them.</p>
]]></description><pubDate>Fri, 06 Dec 2019 00:21:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=21718188</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=21718188</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=21718188</guid></item><item><title><![CDATA[New comment by harpastum in "Driverless cars are stuck in a jam"]]></title><description><![CDATA[
<p>"Only" half of the cost? That's more than enough to make it economically viable for a large chunk of the population.</p>
]]></description><pubDate>Tue, 29 Oct 2019 15:30:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=21388269</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=21388269</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=21388269</guid></item><item><title><![CDATA[New comment by harpastum in "A Raspberry Pi-powered live train station sign"]]></title><description><![CDATA[
<p>There's a great Github project for building your own Splitflap/Solari displays from the ground up for $20 each <a href="https://github.com/scottbez1/splitflap" rel="nofollow">https://github.com/scottbez1/splitflap</a><p>Right now it's focusing on 40-character flaps (not super convent for clock-making), but it's open-source so I'm sure you could modify it for your purposes with some effort.</p>
]]></description><pubDate>Wed, 31 Jul 2019 17:52:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=20576620</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=20576620</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=20576620</guid></item><item><title><![CDATA[New comment by harpastum in "A Raspberry Pi-powered live train station sign"]]></title><description><![CDATA[
<p>There's a great Github project for building your own Splitflap/Solari displays from the ground up for $20 each  <a href="https://github.com/scottbez1/splitflap" rel="nofollow">https://github.com/scottbez1/splitflap</a></p>
]]></description><pubDate>Wed, 31 Jul 2019 17:51:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=20576607</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=20576607</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=20576607</guid></item><item><title><![CDATA[New comment by harpastum in "Launch HN: Prometheus (YC W19) – Remove CO2 from Air and Turn It into Gasoline"]]></title><description><![CDATA[
<p>The energy density of gas makes it incredibly useful for storage and transportation as well. For example, Tesla's 50MWh battery installation in Australia has the same energy as only 1,500 gallons of gasoline. (It's not an apples to apples comparison, I just wanted to give an example of a "large" battery installation.)<p>Obviously there are lots of benefits of batteries over gas, but being able to load up a standard 10,000 gallon tanker truck with 300MWh of energy and drive it anywhere there's a road is something batteries simply can't do.</p>
]]></description><pubDate>Mon, 06 May 2019 19:28:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=19842864</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=19842864</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=19842864</guid></item><item><title><![CDATA[New comment by harpastum in "Storing UTC is not a silver bullet"]]></title><description><![CDATA[
<p>Google Calendar is built around notifications and coordination, which both require an agreed upon "actual" time.<p>The feature set you're looking for sounds more like an "agenda" to me.</p>
]]></description><pubDate>Wed, 27 Mar 2019 15:15:51 +0000</pubDate><link>https://news.ycombinator.com/item?id=19501665</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=19501665</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=19501665</guid></item><item><title><![CDATA[New comment by harpastum in "Cheese exposed to hip-hop tastes better, finds Swiss experiment"]]></title><description><![CDATA[
<p>I don't think the sample population is the largest issue here. The issue is that they didn't control for <i>any</i> other factors.<p>It's entirely likely that the hip-hop cheese <i>was</i> better, but for reasons completely unrelated to the music. Without replication this is extremely likely to be random chance.</p>
]]></description><pubDate>Fri, 15 Mar 2019 22:39:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=19404977</link><dc:creator>harpastum</dc:creator><comments>https://news.ycombinator.com/item?id=19404977</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=19404977</guid></item></channel></rss>