<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: jackcosgrove</title><link>https://news.ycombinator.com/user?id=jackcosgrove</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Mon, 06 Apr 2026 07:39:16 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jackcosgrove" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jackcosgrove in "Qwen3.5 122B and 35B models offer Sonnet 4.5 performance on local computers"]]></title><description><![CDATA[
<p>This is an ongoing course at CMU you can shadow.<p><a href="https://modernaicourse.org/" rel="nofollow">https://modernaicourse.org/</a></p>
]]></description><pubDate>Sun, 01 Mar 2026 02:55:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=47203155</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=47203155</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47203155</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Qwen3.5 122B and 35B models offer Sonnet 4.5 performance on local computers"]]></title><description><![CDATA[
<p>I am a total neophyte when it comes to LLMs, and only recently started poking around into the internals of them. The first thing that struck me was that float32 dimensions seemed very <i>generous</i>.<p>I then discovered what quantization is by reading a blog post about binary quantization. That seemed too good to be true. I asked Claude to design an analysis assessing the fidelity of 1, 2, 4, and 8 bit quantization. Claude did a good job, downloading 10,000 embeddings from a public source and computing a similarity score and correlation coefficient for each level of quantization against the float32 SoT. 1 and 2 bit quantizations were about 90% similar and 8 bit quantization was lossless given the precision Claude used to display the results. 4 bit was interesting as it was 99% similar (almost lossless) yet half the size of 8 bit. It seemed like the sweet spot.<p>This analysis took me all of an hour so I thought, "That's cool but is it real?" It's gratifying to see that 4 bit quantization is actually being used by professionals in this field.</p>
]]></description><pubDate>Sun, 01 Mar 2026 02:02:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=47202822</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=47202822</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47202822</guid></item><item><title><![CDATA[New comment by jackcosgrove in "The United States and Israel have launched a major attack on Iran"]]></title><description><![CDATA[
<p>Complexity can lead to "more is different" outcomes at higher strata. I would not say reified concepts are "made up" as they can have very real effects on both higher and lower strata.<p>The fallacy of reification is treating something emergent as a thing-unto-itself rather than a process or interaction born from constituents at a lower stratum. A reified thing can be recognized and changed for this reason. A mental concept needs only a change of mind to mutate, or to be destroyed.<p>Religion may well prove to be a reification that is destroyed once it is recognized as such. But I do believe that you cannot reduce that which is real and not real to only those things that have physical antecedents at lower strata, as we see emergent phenomena in the physical world as well.</p>
]]></description><pubDate>Sat, 28 Feb 2026 22:20:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=47200907</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=47200907</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47200907</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Farmers Are Aging. Their Kids Don't Want to Be in the Family Business"]]></title><description><![CDATA[
<p>Food prices have been subsidized for decades by farmers' pride in their work and holdings, hesitancy to make a change, and attempts to maintain a family legacy. Had those farmers sold their lands off forty years ago and invested the proceeds in the S&P 500, they would be far wealthier than they are today.</p>
]]></description><pubDate>Sun, 15 Feb 2026 18:56:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=47026318</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=47026318</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47026318</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Where did all the starships go?"]]></title><description><![CDATA[
<p>I was using life expansively to refer to artificial, robotic life.</p>
]]></description><pubDate>Sun, 08 Feb 2026 16:26:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=46935756</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=46935756</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46935756</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Where did all the starships go?"]]></title><description><![CDATA[
<p>It's far more practical to adapt life to space and other planets, than it is to adapt space and other planets to human life. The problem with writing a story about artificial life exploring the universe is that it's unrelatable without humans in it.<p>I think humans are stuck on earth permanently because there are no other environments in the solar system we can live in as easily as earth. Traditional sci-fi explained this away using overpopulation pressures, but overpopulation is fading as a reality and plausible narrative device. And forget about interstellar travel, it's too dangerous and takes too long.<p>If intelligent DNA-based life is still around on earth when it starts getting too hot because of the sun's expansion and it all needs to flee, it will have continued to evolve such that it will be unrecognizable and unrelatable to us. And by then I expect artificial life to have spread to such an extent that biological life on earth is basically a historical footnote.<p>I actually think life in the broadest sense will spread from earth to other places in the galaxy, but it will be completely alien compared to human life.</p>
]]></description><pubDate>Sun, 08 Feb 2026 03:48:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=46931154</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=46931154</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46931154</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Is passive investment inflating a stockmarket bubble?"]]></title><description><![CDATA[
<p>Don't index funds trail market changes though? I thought their allocations are reactive. In other words, the Mag 7 are being bid up by people trying to beat the market. I don't see how index funds could move prices.<p>I do understand how they can stabilize allocations where they are, which I think is the concern. Zombification rather than a positive feedback loop.</p>
]]></description><pubDate>Thu, 15 Jan 2026 02:44:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=46627387</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=46627387</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46627387</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Is passive investment inflating a stockmarket bubble?"]]></title><description><![CDATA[
<p>And anyone who thinks they can consistently predict who will be among the 4% is... mistaken. Diversification is how one manages risk when a system has a power law distribution of outcomes.<p>Trying to beat the market is playing a zero sum game. Someone has to lose for you to win. I understand savvy winners add information, but most winners are just lucky and it still makes me uneasy to play a zero sum game.<p>When you simply try to match the market, you float on the tide that mostly raises all boats and sometimes lowers them. That sits much better with me.</p>
]]></description><pubDate>Thu, 15 Jan 2026 02:37:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=46627339</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=46627339</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46627339</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Rail travel is booming in America"]]></title><description><![CDATA[
<p>I have investigated taking Amtrak for a family trip to do something different. "The journey is the destination" or something like that. I was branding it "slow travel" to the family so we could use it as a sort of modern life/digital detox. I also looked into a trans-Atlantic passage on the QM2.<p>I'm sad to report that renting a family bedroom or two joined bedrooms on Amtrak to take a journey on say the California Zephyr didn't pencil out. It is costlier than flying (about $2000 vs $1600 at the low end for both options, resp.) Even if you account for the cost of staying two extra nights at the destination it about breaks even.<p>With children I don't want to risk the days of travel becoming an ordeal as opposed to hours of flight time. The "digital detox" might quickly go sideways and require hours of screentime pacifiers. Maybe when they are older.<p>Happily the QM2 actually made financial sense and there would be more room to move about and explore the ship.<p>I think rail travel makes the most sense in the Acela context the article opened with - routes between cities that take less than a day. For cross-continent travel the time savings of air travel make rail travel a harder case to argue.</p>
]]></description><pubDate>Sun, 21 Sep 2025 21:42:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=45326937</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=45326937</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45326937</guid></item><item><title><![CDATA[New comment by jackcosgrove in "When the job search becomes impossible"]]></title><description><![CDATA[
<p>It was always my understanding that software careers are shorter than other technical careers, and the higher wages compensate for this. More than compensate, if you invest early.<p>If by FIRE you mean retire in your 50s, I don't think that's an aspiration. That should be an expectation. You might be able to work a full career in this industry, but I wouldn't plan on it.</p>
]]></description><pubDate>Tue, 16 Sep 2025 14:47:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=45263034</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=45263034</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45263034</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Blue-collar jobs are gaining popularity as AI threatens office work"]]></title><description><![CDATA[
<p>The economy functioned without large numbers of office workers in the past, and there are regions of the country where this is still the case. To an extent they will sell their services to each other. To another extent they will be selling to the owners of AI (imagine an electrician building out a data center). The economic surplus will still be there - it will be larger in fact - and there will still be a need for their services. The players involved will change however.</p>
]]></description><pubDate>Sat, 16 Aug 2025 14:29:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=44923754</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44923754</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44923754</guid></item><item><title><![CDATA[New comment by jackcosgrove in "AI is propping up the US economy"]]></title><description><![CDATA[
<p>I'm not sure the comparison is apples to apples, but this article claims the current AI investment boom pales compared to the railroad investment boom in the 19th century.<p><a href="https://wccftech.com/ai-capex-might-equal-2-percent-of-us-gdp-in-2025-while-remaining-far-below-the-peak-spending-on-rail-roads-in-the-19th-century/" rel="nofollow">https://wccftech.com/ai-capex-might-equal-2-percent-of-us-gd...</a><p>> Next, Kedrosky bestows a 2x multiplier to this imputed AI CapEx level, which equates to a $624 billion positive impact on the US GDP. Based on an estimated US GDP figure of $30 trillion, AI CapEx is expected to amount to 2.08 percent of the US GDP!<p>Do note that peak spending on rail roads eventually amounted to ~20 percent of the US GDP in the 19th century. This means that the ongoing AI CapEx boom has lots of legroom to run before it reaches parity with the rail road boom of that bygone era.</p>
]]></description><pubDate>Tue, 05 Aug 2025 20:42:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=44803998</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44803998</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44803998</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Face it: you're a crazy person"]]></title><description><![CDATA[
<p>I received both the worst and the best pieces of career advice when I was an undergraduate.<p>The worst advice was that writing software, after the dotcom bust, was dead as a career. This taught me a lot about the value of "conventional wisdom" vs looking at the underlying supply and demand dynamics of a career. Sort of adjacent to the theme of the essay, I think the best careers are those that you can tolerate <i>and</i> those that have favorable supply-demand curves.<p>The best advice was from a pre-med advisor, who asked me if I wanted to spend the rest of my life surrounded by people who were old, sick, dying, and - not in so many words - decrepit. At that moment I realized I was not a healer, I found most bodies to be gross, and I had no business considering a medical career.</p>
]]></description><pubDate>Thu, 31 Jul 2025 21:12:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=44750226</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44750226</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44750226</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Most Illinois farmland is not owned by farmers"]]></title><description><![CDATA[
<p>The headline is provocative, as some amount of corporate-owned farmland is owned by corporations that are in turn owned by farmers and their families.<p>I would also push back on the notion that owner-operators are in a better position. It's more accurate to say that farmers who have assets of any kind are better off than those who don't have assets. As an example, generations back in my family we owned a lot of farmland. There were some bad investments made in the farming operation and we almost lost it all. This was in the early 1980s for those who are familiar.<p>If my grandfather had sold all of his land and equipment in the late 1970s and invested it in the recently-started Vanguard group, rather than re-investing in the farming operation, then my family would be wealthy. Now expecting a farmer to know about index investing and to bet on it when it was just starting is unreasonable. But it's a good lesson in diversification.<p>When people lionize farming owner-operators, they discount the risk that owner is taking by having so many assets concentrated in one operation. Now farmers do know about investing and diversification, and some do make the rational decision to cash out. Many also don't, for various reasons.<p>But it's not totally fair to expect farmers to behave differently than other asset owners because farming is seen romantically or in terms of national security.<p>This is a different argument than one which would decry the position of tenant farmers. Obviously being a tenant farmer owning nothing but equipment is harder than being a farmer who has $5 million invested somewhere else and rents the land he farms.</p>
]]></description><pubDate>Wed, 30 Jul 2025 18:48:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=44738069</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44738069</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44738069</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Schizophrenia is the price we pay for minds poised near the edge of a cliff"]]></title><description><![CDATA[
<p>Psychosis is a symptom of schizophrenia, which is a thought disorder according to psychiatry.<p>Psychosis can also be caused by a lack of sleep (like not sleeping for days) and in this case sleep can end the psychosis.<p>Which is to say that schizophrenia and psychosis have an intersecting relationship.</p>
]]></description><pubDate>Mon, 30 Jun 2025 00:58:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=44418099</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44418099</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44418099</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Schizophrenia is the price we pay for minds poised near the edge of a cliff"]]></title><description><![CDATA[
<p>There was a theory that autism and schizophrenia were opposite ends of a spectrum, but it's fallen into disfavor. The theory went that autism produces mechanical, rigid thought patterns while schizophrenia takes free association too far.<p>I think it is possible to be diagnosed with both schizophrenia and autism which is why the theory is not considered anymore.</p>
]]></description><pubDate>Sat, 28 Jun 2025 23:26:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=44409024</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44409024</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44409024</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Munich from a Hamburger's perspective"]]></title><description><![CDATA[
<p>I think "Habsburg" is a good enough descriptor. It encompasses the Catholic, northern-influenced culture (if not actually in the north like Trieste) as well as the baroque, counter Reformation-derived artistic styles.</p>
]]></description><pubDate>Thu, 19 Jun 2025 20:00:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=44322025</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44322025</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44322025</guid></item><item><title><![CDATA[New comment by jackcosgrove in "Long live American Science and Surplus"]]></title><description><![CDATA[
<p>They helped me out for my 8th grade science fair! I wanted to build a shake table to simulate the effects of earthquakes on buildings. (tl;dr: the taller the building, the more flexible it is. At least according to my experiment, which did get me a place at the state finals.) They helped me size the motor and even had an AC one I could plug directly into the wall. This was the Geneva location.</p>
]]></description><pubDate>Thu, 29 May 2025 04:41:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=44123181</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=44123181</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44123181</guid></item><item><title><![CDATA[New comment by jackcosgrove in "A crypto founder faked his death. We found him alive at his dad's house"]]></title><description><![CDATA[
<p>[flagged]</p>
]]></description><pubDate>Mon, 12 May 2025 13:31:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=43962685</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=43962685</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43962685</guid></item><item><title><![CDATA[New comment by jackcosgrove in "The language brain matters more for programming than the math brain? (2020)"]]></title><description><![CDATA[
<p>I had to scroll through most of the paper to find this.<p>> All participants were right-handed native English speakers with no exposure to a second natural language before the age of 6 years<p>Which removes a confounder that Python mimics English syntax.<p>Still if this is a typical study recruiting thirty-some undergrads as subjects it's probably not generalizable, or even replicable given the same experimental setup.</p>
]]></description><pubDate>Fri, 02 May 2025 19:17:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=43873692</link><dc:creator>jackcosgrove</dc:creator><comments>https://news.ycombinator.com/item?id=43873692</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43873692</guid></item></channel></rss>