<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: erjiang</title><link>https://news.ycombinator.com/user?id=erjiang</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sat, 18 Apr 2026 03:32:12 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=erjiang" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by erjiang in "GPT-5"]]></title><description><![CDATA[
<p>The API lets you directly choose the model you want. Automatic thinking is a ChatGPT feature since ChatGPT has always been a “GPT wrapper” in that sense.</p>
]]></description><pubDate>Fri, 08 Aug 2025 15:05:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=44837889</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=44837889</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44837889</guid></item><item><title><![CDATA[New comment by erjiang in "GPT-5"]]></title><description><![CDATA[
<p>The list of models to be retired is about ChatGPT. Those models are still in the API.</p>
]]></description><pubDate>Fri, 08 Aug 2025 15:02:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=44837844</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=44837844</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44837844</guid></item><item><title><![CDATA[New comment by erjiang in "GPT-5"]]></title><description><![CDATA[
<p>On the ChatGPT website, there should be an option to enable the legacy models in your user settings.</p>
]]></description><pubDate>Fri, 08 Aug 2025 15:01:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=44837830</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=44837830</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44837830</guid></item><item><title><![CDATA[New comment by erjiang in "Why is there a screen that says "It is now safe to turn off your computer"? (2016)"]]></title><description><![CDATA[
<p>I don't think the dialog as described in the article is accurate and I can't find a screenshot of Windows NT that says "Windows has been shut down." The only screenshots I can find say, "It is now safe to turn off your computer." The confusion around the Restart button is understandable, but the framing of the story seems to imply that the old dialog led to the later phrase, "It is now safe to turn off your computer."</p>
]]></description><pubDate>Mon, 17 Feb 2025 07:11:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=43076084</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=43076084</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43076084</guid></item><item><title><![CDATA[Write your own application launcher]]></title><description><![CDATA[
<p>Article URL: <a href="https://notes.ericjiang.com/posts/1337">https://notes.ericjiang.com/posts/1337</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=42563063">https://news.ycombinator.com/item?id=42563063</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 01 Jan 2025 00:52:59 +0000</pubDate><link>https://notes.ericjiang.com/posts/1337</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=42563063</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42563063</guid></item><item><title><![CDATA[Learning Chinese (well enough to order from the menu) using MTurk]]></title><description><![CDATA[
<p>Article URL: <a href="https://notes.ericjiang.com/posts/1317">https://notes.ericjiang.com/posts/1317</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=36790723">https://news.ycombinator.com/item?id=36790723</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 19 Jul 2023 18:11:09 +0000</pubDate><link>https://notes.ericjiang.com/posts/1317</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=36790723</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36790723</guid></item><item><title><![CDATA[New comment by erjiang in "A look back at the Argus C44 rangefinder camera"]]></title><description><![CDATA[
<p>Looking at the photos, that calculator wheel on the back looks wonderful. Certainly better than the contemporary paper calculator wheel that I got with my Argus.</p>
]]></description><pubDate>Tue, 02 May 2023 04:18:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=35783315</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=35783315</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35783315</guid></item><item><title><![CDATA[A look back at the Argus C44 rangefinder camera]]></title><description><![CDATA[
<p>Article URL: <a href="https://notes.ericjiang.com/posts/1265">https://notes.ericjiang.com/posts/1265</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=35782759">https://news.ycombinator.com/item?id=35782759</a></p>
<p>Points: 17</p>
<p># Comments: 6</p>
]]></description><pubDate>Tue, 02 May 2023 02:58:18 +0000</pubDate><link>https://notes.ericjiang.com/posts/1265</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=35782759</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35782759</guid></item><item><title><![CDATA[New comment by erjiang in "Is Krita ready for HDR painting?"]]></title><description><![CDATA[
<p>In my case, I wanted to edit some HDR environment maps. They are a 360deg image of the environment used for 3D work. They need to be floating-point so that arbitrary brightnesses can be captured and used to calculate the lighting in the scene correctly.</p>
]]></description><pubDate>Fri, 28 Apr 2023 16:09:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=35743231</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=35743231</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35743231</guid></item><item><title><![CDATA[Is Krita ready for HDR painting?]]></title><description><![CDATA[
<p>Article URL: <a href="https://notes.ericjiang.com/posts/1241">https://notes.ericjiang.com/posts/1241</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=35736913">https://news.ycombinator.com/item?id=35736913</a></p>
<p>Points: 30</p>
<p># Comments: 6</p>
]]></description><pubDate>Fri, 28 Apr 2023 02:34:06 +0000</pubDate><link>https://notes.ericjiang.com/posts/1241</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=35736913</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35736913</guid></item><item><title><![CDATA[New comment by erjiang in "Practical Scheme"]]></title><description><![CDATA[
<p>Totally, and Racket is cool because you can see it as a framework for creating languages.<p>But Racket is built on top of Chez Scheme so you can also use that directly if you just want a Scheme.</p>
]]></description><pubDate>Fri, 20 Jan 2023 17:18:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=34456354</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=34456354</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34456354</guid></item><item><title><![CDATA[New comment by erjiang in "Recommendations for Japan Travel"]]></title><description><![CDATA[
<p>This is interesting... when I visited recently I realized that Suica on Apple Wallet was more convenient than the physical card. The top reason is that you can use Apple Pay to top up your Suica whenever and wherever you are, without downloading any special app or needing to login to something.<p>However, one of my credit cards didn't work for that with no clear reason given, but a different one worked almost every time.</p>
]]></description><pubDate>Sun, 04 Dec 2022 22:01:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=33858425</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=33858425</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33858425</guid></item><item><title><![CDATA[New comment by erjiang in "In microtransit, passengers order a shuttle van instead of having to take a bus"]]></title><description><![CDATA[
<p>In my past life I built and sold dispatch software for microtransit / on-demand rides. (UberPool as a service, more or less.)<p>What this article doesn’t say:<p>* Many, many cities have something similar already, but only for riders with disabilities. (“paratransit”) You need to schedule your ride the day before, but they will take you from door to door.<p>* The cost per ride is quite high: more than $20 per ride, often. This cost is borne by the city, while riders pay little to nothing. In very few cases does it make financial sense - most places aren’t replacing their buses with microtransit.<p>* The best utilization I’ve seen is on campuses, where there are a fixed set of stops in a small region, and a large population of people who can’t or don’t want to drive (maybe due to limited parking).</p>
]]></description><pubDate>Wed, 20 Jul 2022 17:02:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=32168740</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=32168740</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32168740</guid></item><item><title><![CDATA[New comment by erjiang in "Ask HN: Failed project you spent 15 hours/week for 5 years on?"]]></title><description><![CDATA[
<p>It's only a "failure" if you look at your net worth, right? It sounds like you have the experience, knowledge, and even resume of someone much older than 28. If you had instead spent ages 22-28 on a PhD, you'd still have no net worth, but people wouldn't see that as a failure.</p>
]]></description><pubDate>Wed, 14 Jul 2021 21:54:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=27838898</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27838898</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27838898</guid></item><item><title><![CDATA[New comment by erjiang in "Seven Years of Factorio Friday Facts (2020)"]]></title><description><![CDATA[
<p>Have you tried Factorio multiplayer? I tried it with some other people and it really is like real life.<p>Somebody put in an ugly hack to deal with scaling rather than rearchitect? Well, I'd like to fix it but it'll mean downtime that'll interrupt player 2's OKR of getting the rocket control units made.<p>Plus, we didn't allocate enough space, so I need to talk to player 3 who owns the adjacent area (and whose functionality I don't understand). Player 3 doesn't like the idea of moving or redesigning that area, so I'm going to try asking Player 2 or Player 4 to help me rebuild it in an undeveloped area.<p>Building the new section while the old section is still running has overdrawn on our electricity capacity, which has been oversubscribed for a while but we just kept accumulating tech debt on electrical with ugly hacks. Which brings me back to step 1.</p>
]]></description><pubDate>Wed, 09 Jun 2021 23:28:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=27454747</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27454747</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27454747</guid></item><item><title><![CDATA[New comment by erjiang in "Replit used legal threats to kill my open-source project"]]></title><description><![CDATA[
<p>We may not have forgotten that Heroku exists, but we may have forgotten that Heroku was an IDE. At least, I wasn't aware of it. Are there old screenshots of what it looked like?</p>
]]></description><pubDate>Tue, 08 Jun 2021 04:22:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=27430623</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27430623</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27430623</guid></item><item><title><![CDATA[New comment by erjiang in "The data model behind Notion's flexibility"]]></title><description><![CDATA[
<p>I built a no-code web-app creator that also has a concept of blocks and I can relate to this. Each paragraph is a different block, and I still haven't quite figured out the best way of handling cross-block interactions like your example of cross-block text selection.<p>I think I would need to redo the browser-based editor, because even if I solved e.g. cross-block selection across blocks of the same type, it's unclear how it should work across, say, a text block and a video-embed block.</p>
]]></description><pubDate>Tue, 18 May 2021 21:07:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=27201149</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27201149</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27201149</guid></item><item><title><![CDATA[New comment by erjiang in "Nvidia cripples cryptocurrency mining on RTX 3080 and 3070 cards"]]></title><description><![CDATA[
<p>It makes sense to me that gamers as a market are more likely to be brand-loyal and gaming is also more moat-able than hashing.<p>For miners, they just want whatever does more hashes per second. There's no loyalty there and the hardware is competing solely on hash/power/cost. For gaming, you have proprietary software and APIs like "RTX"-branded stuff, game-specific driver optimizations, etc. where you can better defend yourself against AMD.<p>So for Nvidia, if they're going to sell X GPUs either way, they'd rather sell to gamers than miners to help preserve their gaming market share which plausibly has more long-term value. Just my guess, at least.</p>
]]></description><pubDate>Tue, 18 May 2021 20:34:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=27200672</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27200672</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27200672</guid></item><item><title><![CDATA[New comment by erjiang in "Ethereum will use around 99.95% less energy post merge"]]></title><description><![CDATA[
<p>The numbers that they are providing are pretty reasonable and nobody is really disputing that removing the mining requirement and just staking your Ethereum is enormously more efficient. Even if you assume each staker is running 1 server, then 140k computers NOT running at full tilt all the time is still a tiny consumer of electricity compared to the current situation.<p>A lot of the debate seems to be around whether or not it's as secure or viable, or whether the existing Ethereum miners will try to stage a coup or something.<p>Disclaimer: I don't hold cryptocurrency and I think proof-of-work cryptocurrencies are a tragic waste.</p>
]]></description><pubDate>Tue, 18 May 2021 18:38:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=27199106</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27199106</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27199106</guid></item><item><title><![CDATA[New comment by erjiang in "Ethereum will use around 99.95% less energy post merge"]]></title><description><![CDATA[
<p>You may be thinking of proof-of-SPACE cryptocurrency, where the more hard drive space you dedicate, the more rewards you get.<p>Proof of STAKE is where you dedicate your cryptocurrency and are rewarded based on that. Since owning cryptocurrency doesn't take any physical resource, the only expenditure is keeping your staking node (a computer) online so that it can participate in validation.</p>
]]></description><pubDate>Tue, 18 May 2021 18:29:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=27198975</link><dc:creator>erjiang</dc:creator><comments>https://news.ycombinator.com/item?id=27198975</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=27198975</guid></item></channel></rss>