<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: jmb99</title><link>https://news.ycombinator.com/user?id=jmb99</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Fri, 13 Nov 2026 15:50:39 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jmb99" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jmb99 in "USPS now offers official ZIP Code boundary polygons"]]></title><description><![CDATA[
<p>The point is to state that USPS should not need to be profitable. Governments (and government-run services) shouldn’t exist to be profitable.</p>
]]></description><pubDate>Tue, 10 Nov 2026 01:03:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=50434727</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50434727</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50434727</guid></item><item><title><![CDATA[New comment by jmb99 in "OpenAI raises $11B at a $1.25T valuation"]]></title><description><![CDATA[
<p>In theory though that’s the whole point of the prediction markets. If all analysts truly believe (with conviction) that the number should be <1.2T, then they can put their money where their mouth is in the prediction market that’s currently overshooting their predictions by 20-40%. If they don’t have much conviction, then maybe the stories in the media aren’t their true beliefs or they’re trying to push a narrative.</p>
]]></description><pubDate>Sun, 08 Nov 2026 18:13:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=50415613</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50415613</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50415613</guid></item><item><title><![CDATA[New comment by jmb99 in "OpenAI raises $11B at a $1.25T valuation"]]></title><description><![CDATA[
<p>You can believe than anthropic is a better investment (“worth more”) than OpenAI while still thinking they’re both overvalued (or will underperform other investments).</p>
]]></description><pubDate>Sun, 08 Nov 2026 17:57:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=50415479</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50415479</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50415479</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>> Does this also factor in operating costs of the vehicle? Especially considering gasoline at $4-7/gallon?<p>Depends on the vehicle of course. But for me at least, my 5-speed Civic for $2500 is way cheaper over its expected lifespan than a $7000 Nissan Leaf (and the Civic is way more flexible, since it can actually go more than 100km every 6 hours in the winter). At $1.50/L and 6L/100km, I can drive about 50,000km before I spend more on gasoline than the price difference between the two. The actual breakeven math (assuming 21kWh/100km) is closer to about 65,000km when factoring in electricity at ~$0.12/kWh. Oil changes are negligible (I do my own maintenance and oil changes), and a used Leaf is going to have just as many problems (if not more) with "the rest of the car" as a gas car (suspension, steering, brakes, tires, electrics, interior components, not to mention battery pack services).<p>If you buy a nicer EV than the break even point goes even further out. At least where I am, the EV equivalent of any gasoline car has a breakeven point of at least 50k km driven, usually more.<p>> Then there’s also the potential scenario of “buyer prefers an EV anyway.”<p>Entirely fair, but I'd still buy a generator <i>and</i> an EV. Because coupling your house power to your car just seems like a bad idea (to rely on it, at least; if you live somewhere that you never need to rely on off-grid power, then who really cares). For instance, my house has a sump pump that must run every ~hour or my basement <i>will</i> flood, and during storms that gets down to about 20 minutes. If my area doesn't have power, then I can't charge an EV anywhere nearby, and if I'm powering the house off the EV, how am I going to recharge it without my basement flooding?</p>
]]></description><pubDate>Fri, 06 Nov 2026 19:59:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=50397573</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50397573</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50397573</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>A generator to power your house costs <$1k. A car that runs on gas costs <$5k, or if you want something that "matches" a cybertruck, ~$50k new. You can buy a lot of gasoline for those things before you get close to what a cybertruck costs. I don't care how "elegant" solar panels and a cybertruck might be if you're throwing money away to achieve it. (Ignoring that you can't both drive your truck and have your house powered from it simultaneously, and I don't think anyone in history has considered the cybertruck to be "elegant" - at least no one with eyes.)</p>
]]></description><pubDate>Fri, 06 Nov 2026 19:01:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=50396778</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50396778</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50396778</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>Fortunately there's a couple (literally 2) gas stations near me that sell ethanol-free 91 octane gas, which has a shelf life of ~1 year. Sta-bil in theory extends that substantially longer. My solution is Sta-bil in the E0 gas, which gets used throughout the year for small engines (lawn mower, snowblower, pressure washer) and the generator if needed. I power up the generator once a month to make sure its battery stays charged and fuel keeps flowing (probably overkill). My power goes out 2-3 times a year, so that combined with the small engine stuff is enough to cycle through the gas in ~1 year, but if it isn't, I'll either burn it in the generator or just run it in one of my cars.<p>If you live in an area where you can only get ethanol gas, then you definitely don't want it sitting more than 6 months, even with Sta-bil (in my experience). So that means yeah, you gotta cycle through the generator's tank twice a year, which if you live in an area with reliable power, means spending more money than you need to on gas and oil. Also, keep all containers (including fuel tanks) as full as possible, to minimize the amount of air in the container, to minimize the amount of moisture the ethanol can suck out of the air.</p>
]]></description><pubDate>Fri, 06 Nov 2026 18:59:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=50396741</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50396741</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50396741</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>The amount of money you spent on a cybertruck could’ve instead been spent on a generator, gasoline for the generator, and a car to go buy gasoline for the generator. Or, battery packs & solar panels, and a generator, and gasoline for the generator, and a car to go buy gasoline for the generator. That car could even be an EV, just a much more efficient one.</p>
]]></description><pubDate>Fri, 06 Nov 2026 18:25:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=50396231</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50396231</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50396231</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>No, but a stationary generator powered off a small volume of gasoline could have powered the house for the same amount of time, and then a gasoline powered car could've driven to the gas station to refill jerry cans. Both of which would cost substantially less than a cybertruck.</p>
]]></description><pubDate>Fri, 06 Nov 2026 18:22:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=50396184</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50396184</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50396184</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>My generator was $1000 and can power my entire house (including server rack). If I bought it used it would’ve been $500. I can trivially store 2 weeks worth of gasoline (and I do, constantly) and as long as somewhere within 700km of my house has gasoline I can get there, refill, and get home. I own 6 gas cars and they <i>total</i> less than $33k. My daily I paid $2500 for and average 6L/100km. (All CAD) If you start taking used cars into account the math goes waaaaaay towards gasoline car + generator.</p>
]]></description><pubDate>Fri, 06 Nov 2026 18:19:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=50396151</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50396151</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50396151</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>Are they really that inefficient? My 94 Roadmaster sedan gets 14ish mpg towing 7000lbs at 60mph, which works out to a bit over 300 miles on a tank. I figured your average gas truck would do at least that well, and they have larger tanks.</p>
]]></description><pubDate>Fri, 06 Nov 2026 17:46:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=50395658</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50395658</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50395658</guid></item><item><title><![CDATA[New comment by jmb99 in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>> Cybertruck uses like a fifth of the energy of a full size gas pickup truck<p>Yes, but the energy density of the energy storage mechanism in the cybertruck is substantially lower than a gas pickup truck</p>
]]></description><pubDate>Fri, 06 Nov 2026 17:42:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=50395616</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50395616</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50395616</guid></item><item><title><![CDATA[New comment by jmb99 in "Postman silently auto-installs AI plugins and attempts to share all API data"]]></title><description><![CDATA[
<p>Raising $400M != having $400M personally.<p>Although, at that level of raise, I assume the ceo/founder(s) would probably be taking a least a few million, maybe $10M over the course of the raises + elapsed time?<p>There’s definitely a substantial difference between a net worth of $10M and a net worth of $100M. After that, I imagine most people wouldn’t really be able to tell the difference day to day.</p>
]]></description><pubDate>Wed, 04 Nov 2026 05:01:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=50361668</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50361668</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50361668</guid></item><item><title><![CDATA[New comment by jmb99 in "Postman silently auto-installs AI plugins and attempts to share all API data"]]></title><description><![CDATA[
<p>I did! As a high school project. Literally, in high school, one of our assignments was to build a GUI that could make basic HTTP requests (GET and POST, and I think PATCH or something for extra credit) and display the result “nicely.”<p>Obviously not as full-featured as Postman or Bruno. But this is not something complicated or difficult or novel. My high school teacher had been using this as an assignment since the mid-2000s.</p>
]]></description><pubDate>Wed, 04 Nov 2026 04:51:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=50361611</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50361611</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50361611</guid></item><item><title><![CDATA[New comment by jmb99 in "Is Liquid Metal Killing Our PCs? Scientific Analysis and a 2-Year Test [video]"]]></title><description><![CDATA[
<p>The incentives aren't there (in my opinion) because the average person doesn't actually <i>want</i> to see that level of info. They're reading (or more likely, skimming) these sorts of reviews to have someone tell them what they should buy. The reviewer could go into a crazy amount of detail to figure out all of the thermal characteristics of the thing they're reviewing, but in the end it won't make a lick of difference compared to doing "just enough" and recommending something "good enough." Especially when, in most cases, coolers on the market these days are either "good enough or better" or "junk" and it's not hard to tell them apart.<p>There are exceptions to the above, like GamersNexus, who do take a slightly more scientific approach to things, but at the end of the day, most people don't care.</p>
]]></description><pubDate>Fri, 16 Oct 2026 18:35:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=50122463</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50122463</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50122463</guid></item><item><title><![CDATA[New comment by jmb99 in "Is Liquid Metal Killing Our PCs? Scientific Analysis and a 2-Year Test [video]"]]></title><description><![CDATA[
<p>Not the end of the world to deal with, you just have to be very careful. No harder than mobile phone repair if that’s something you’ve ever done</p>
]]></description><pubDate>Fri, 16 Oct 2026 16:31:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=50120537</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50120537</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50120537</guid></item><item><title><![CDATA[New comment by jmb99 in "Is Liquid Metal Killing Our PCs? Scientific Analysis and a 2-Year Test [video]"]]></title><description><![CDATA[
<p>Part of the problem is that any given cooler doesn’t have a single W/K value. It depends on the temperature gradient across the heatsink which depends on airflow over the heatsink (and both the heat and heat density of the CPU being cooled), and the airflow depends on the case (and fans). And airflow temperature matters too (are you cooling the CPU’s heatsink with air that’s already been warmed by a GPU?)<p>Note as well that I said heat density - different benchmarks (or applications) will load the CPU differently, and the same amount of power consumption will result in very different heat outputs (heavy single core use will result in part of the die and heat spreader getting really hot, whereas heavy multi core use will result in the whole die and heatspreader getting kinda hot). If the heatsink has a very high surface area and high airflow it might have the ability to dissipate quite a lot of heat, but if the contact surface sucks (or is aluminum) it might not actually be able to transfer heat away very effectively without a massive temperature delta - resulting in high CPU temps for single core use even with a high cooling capacity for multi core use, for example.<p>Your average person can’t understand all of these variables, and the average reviewer can’t control for all of them. So, “this CPU with these benchmarks in this case with this fan configuration” is the best you can really expect. Because otherwise, what reporting are you actually going to do? “This cooler with 3.2CFM of 26C airflow on a CPU dissipating 80W on one core and 10W on the other 7 cores results in a peak core temperature of 87°C and a package temperature of 81°C” is not useful reporting. Especially because, when the average person doesn’t understand it, they’re gonna buy a case fan that says 3.2CFM on the box and then wonder why their CPU’s throttling.</p>
]]></description><pubDate>Fri, 16 Oct 2026 16:30:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=50120517</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50120517</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50120517</guid></item><item><title><![CDATA[New comment by jmb99 in "Wayland desktop for Linux with skeuomorphic design"]]></title><description><![CDATA[
<p>> why would they make it hard to find the thing I just downloaded?<p>In… the downloads folder? How much more obvious does the location need to be?</p>
]]></description><pubDate>Thu, 15 Oct 2026 22:31:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=50111317</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50111317</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50111317</guid></item><item><title><![CDATA[New comment by jmb99 in "Passkeys are not a trap"]]></title><description><![CDATA[
<p>You can’t change secure boot settings from the OS, even with root. You need the signing keys or to be in BIOS (if it’s configured correctly), which shouldn’t be on the device.<p>Now if the right kernel exploit and a secure boot exploit are chained together then it’s possible. But at the point, you’re gonna be hosed no matter what you do.</p>
]]></description><pubDate>Thu, 15 Oct 2026 00:53:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=50097776</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50097776</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50097776</guid></item><item><title><![CDATA[New comment by jmb99 in "Passkeys are not a trap"]]></title><description><![CDATA[
<p>If you roll your own keys (preferably in a local HSM and use PKCS#11 for signing, with some kind of local auth) then it’s actually quite a good security feature. Obviously not for Windows, but trivial on Linux. It’s very easy to set up a hook for apt (or whatever package manager) to re-sign your kernel/init/modules on updates (requiring whatever your auth source is, password probably good enough for most people) and then as long as you’re booted with secure boot enabled, it’s a lot harder for someone with root to escalate further. Which you can then go down the rabbit hole of hardening the system to prevent becoming root, etc.<p>Pretty useless if you use Microsoft’s keys. But with your own, depending on the attack surfaces you care about, can be pretty helpful</p>
]]></description><pubDate>Thu, 15 Oct 2026 00:50:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=50097751</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50097751</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50097751</guid></item><item><title><![CDATA[New comment by jmb99 in "Passkeys are not a trap"]]></title><description><![CDATA[
<p>>1password<p>If the solution to smooth passkey use is “spend money” why the hell is anyone going to use passkeys over just using passwords for free?</p>
]]></description><pubDate>Thu, 15 Oct 2026 00:42:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=50097668</link><dc:creator>jmb99</dc:creator><comments>https://news.ycombinator.com/item?id=50097668</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50097668</guid></item></channel></rss>