<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: sjducb</title><link>https://news.ycombinator.com/user?id=sjducb</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sun, 08 Nov 2026 18:24:51 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=sjducb" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by sjducb in "A barbarian tribe's mythic origin story is true, ancient DNA reveals"]]></title><description><![CDATA[
<p>So do you reject that lead poisoning causes stupidity because it is unethical to measure intelligence?<p>It’s a good thing that measuring IQ enabled us to discover that trace amounts of lead in the environment causes reduced intelligence. That was a key piece of data for banning lead in fuel. The loss of IQ points happens to all kids living in cities, rich and poor. Rich powerful people didn’t want their kids made stupid by lead in the air.<p>I think that removing lead from paint and fuel has greatly improved the lives of billions of people.</p>
]]></description><pubDate>Sat, 07 Nov 2026 20:33:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=50407798</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50407798</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50407798</guid></item><item><title><![CDATA[New comment by sjducb in "A barbarian tribe's mythic origin story is true, ancient DNA reveals"]]></title><description><![CDATA[
<p>Did you even read my comment?<p>Answer this question:<p>> If you can’t study IQ how do you demonstrate that lead poisoning causes reduced intelligence?</p>
]]></description><pubDate>Sat, 07 Nov 2026 17:05:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=50406098</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50406098</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50406098</guid></item><item><title><![CDATA[New comment by sjducb in "A barbarian tribe's mythic origin story is true, ancient DNA reveals"]]></title><description><![CDATA[
<p>If you can’t study IQ how do you demonstrate that lead poisoning causes reduced intelligence?<p>The research to ban lead in fuel relied on measuring IQ and measuring lead exposure, then showing a correlation between the two.<p>At the population level IQ is a very useful tool.</p>
]]></description><pubDate>Sat, 07 Nov 2026 16:39:48 +0000</pubDate><link>https://news.ycombinator.com/item?id=50405894</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50405894</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50405894</guid></item><item><title><![CDATA[New comment by sjducb in "A barbarian tribe's mythic origin story is true, ancient DNA reveals"]]></title><description><![CDATA[
<p>I don’t see how your reply relates to my comment. At no point do I say that any correlations are linear, nor does my argument depend on linear correlations.<p>Fundamentally my argument is maybe science can solve a problem, let’s at least try.</p>
]]></description><pubDate>Sat, 07 Nov 2026 16:31:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=50405845</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50405845</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50405845</guid></item><item><title><![CDATA[New comment by sjducb in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>Genuinely surprised that you’re right.<p>I was remembering how critical infrastructure stays on. Most critical infrastructure is commercial.<p>However, a business park or an office block gets cut off with the homes.</p>
]]></description><pubDate>Sat, 07 Nov 2026 15:07:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=50405178</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50405178</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50405178</guid></item><item><title><![CDATA[New comment by sjducb in "A barbarian tribe's mythic origin story is true, ancient DNA reveals"]]></title><description><![CDATA[
<p>We care about racial differences in outcomes that are correlated to IQ, such as employment and imprisonment.<p>What if some of the observed racial differences were caused by a lack of vitimin D, due to darker skin photosynthesising less of it? Vitamin D is essential for brain development. Black people in northern climates get less of it than evolution intended. This lack of vitamin D might be causing reduced brain development in black populations. If that is true, we could fix the prison crisis and racial IQ differences with a pill!<p>Sadly we don’t know because you can’t do the research to test the hypothesis.<p>If we block all research into a problem then we can’t solve it.<p>If you actually care about fixing a problem then we should bring all available tools to fix and solve it.</p>
]]></description><pubDate>Sat, 07 Nov 2026 14:53:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=50405057</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50405057</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50405057</guid></item><item><title><![CDATA[New comment by sjducb in "Tesla to wind down Cybertruck production"]]></title><description><![CDATA[
<p>During a “power cut” there is usually reduced capacity on the grid, not zero capacity. They typically cut power to homes while keeping power on for business. The homes get power on a rolling blackout, so they have power for a few hours per day.<p>I expect that the charging station will be in an industrial park with an industrial power supply.</p>
]]></description><pubDate>Sat, 07 Nov 2026 14:38:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=50404924</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50404924</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50404924</guid></item><item><title><![CDATA[New comment by sjducb in "Postgres 19 is late because so many more bugs are being found now"]]></title><description><![CDATA[
<p>Logging is a very complicated security area. You often get sensitive data in the logs and it gets sent across the network to monitoring servers.<p>Also any part of the program can send data to the logger. This means the logger can receive malicious payloads from anywhere. Maybe your logger handles ascii control characters badly?</p>
]]></description><pubDate>Mon, 02 Nov 2026 14:23:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=50337224</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50337224</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50337224</guid></item><item><title><![CDATA[New comment by sjducb in "Postgres 19 is late because so many more bugs are being found now"]]></title><description><![CDATA[
<p>Also the defender has to be right every time, the attacker just has to be right once.<p>(Defence in depth does mitigate this somewhat. The attacker has to be right two or three times)</p>
]]></description><pubDate>Mon, 02 Nov 2026 13:08:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=50336345</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50336345</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50336345</guid></item><item><title><![CDATA[New comment by sjducb in "Postgres 19 is late because so many more bugs are being found now"]]></title><description><![CDATA[
<p>Agreed. It’s the modern security through obscurity.<p>Security through obscurity protects you from low effort vulnerability scanners.<p>It makes you more vulnerable to a sophisticated targeted attack. A competent hacker or AI will quickly find vulnerabilities in your custom libraries.</p>
]]></description><pubDate>Mon, 02 Nov 2026 12:08:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=50335741</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50335741</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50335741</guid></item><item><title><![CDATA[New comment by sjducb in "We won't "just hang out""]]></title><description><![CDATA[
<p>I know the name of my child’s chess coach. He doesn’t have any titles, but he’s really good.<p>There’s lots of community amount lower ranked players. You don’t have to be the best.</p>
]]></description><pubDate>Sat, 31 Oct 2026 17:25:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=50318094</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50318094</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50318094</guid></item><item><title><![CDATA[New comment by sjducb in "We won't "just hang out""]]></title><description><![CDATA[
<p>I sort of did that. In October 2019 I started calculating my net worth every month. I have lots of graphs and charts.<p>Now I’m a FI millionaire who works because it’s the best way to meet interesting people  my age. I look forward to when AI frees everyone from work and they have time to do fun stuff during the day too.</p>
]]></description><pubDate>Sat, 31 Oct 2026 16:27:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=50317569</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50317569</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50317569</guid></item><item><title><![CDATA[New comment by sjducb in "Tesla Roadster"]]></title><description><![CDATA[
<p>The question of when to compress the air in the tank is an interesting one. Ideally you’d use the rockets for acceleration, breaking and cornering; which is all the time.<p>So probably the compressor will run all the time.<p>You’ll have to do a lot of modelling to work out the best time to use the rockets, my instinct is that fast cornering is the best use of the rockets. Maybe with a boost button to get you off the line fast at the beginning.<p>From the marketing materials it looks like straight line acceleration is being prioritised tho, so you charge the tank during braking and cornering.</p>
]]></description><pubDate>Sat, 17 Oct 2026 19:38:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=50134360</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50134360</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50134360</guid></item><item><title><![CDATA[New comment by sjducb in "Trump administration is suspending Microsoft from a green card program"]]></title><description><![CDATA[
<p>Agreed, if a company wants to fill roles it advertises on linked in. Maybe the rules need updating.</p>
]]></description><pubDate>Thu, 08 Oct 2026 18:08:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=50009573</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=50009573</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50009573</guid></item><item><title><![CDATA[New comment by sjducb in "Automatic Transmission – a data-privacy study of connected vehicles"]]></title><description><![CDATA[
<p>> Additionally, without pretty extensive work there is no means of physically disabling the telemetry<p>My car has a fuse for the antenna module. You can remove this fuse to block all data transfer. Have a look at the fuse box diagrams for the minivans you are interested in.</p>
]]></description><pubDate>Fri, 02 Oct 2026 14:00:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=49933633</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49933633</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49933633</guid></item><item><title><![CDATA[New comment by sjducb in "Burning Man death rates – A short lesson in statistics"]]></title><description><![CDATA[
<p>I find the rangers evolution into a proto police force fascinating.<p>It starts with being ready to help people who are having health crises. Then when a serious crime happens the community wants it to be investigated, and they call the only organised group that can help.</p>
]]></description><pubDate>Thu, 01 Oct 2026 08:41:16 +0000</pubDate><link>https://news.ycombinator.com/item?id=49919287</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49919287</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49919287</guid></item><item><title><![CDATA[New comment by sjducb in "Tutoring company tells parents to save their money and 'use AI instead'"]]></title><description><![CDATA[
<p>Alpha school struggles with the kids who are a bit slow.<p>If you’re the sort of kid who gets everything right first go then you join the “rocket ship” and spend 2hrs a day with AI then play for the rest of the day. You would do well in any school.<p>If you don’t get it right quickly then you join the “Pirate Ship” and have to spend all day grinding and obeying AI while your friends play. It seems pretty terrible.<p><a href="https://buildcognitiveresonance.substack.com/p/fourth-report-former-alpha-school" rel="nofollow">https://buildcognitiveresonance.substack.com/p/fourth-report...</a></p>
]]></description><pubDate>Fri, 25 Sep 2026 09:43:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=49842215</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49842215</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49842215</guid></item><item><title><![CDATA[New comment by sjducb in "Tutoring company tells parents to save their money and 'use AI instead'"]]></title><description><![CDATA[
<p>I’m learning French and I’ve tried both AI and a remote tutor from Cameroon.<p>The tutor from Cameroon is much better.<p>She tells me when I’m getting the basics wrong and designs lessons to go back and fix the basics.<p>AI loves to tell me how great I am and do lessons at the frontier of what I understand to make me feel good about how much progress I’m making.</p>
]]></description><pubDate>Thu, 24 Sep 2026 19:05:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=49835410</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49835410</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49835410</guid></item><item><title><![CDATA[New comment by sjducb in "Which tools do Claude, Codex and Cursor choose? We measured 17k runs to find out"]]></title><description><![CDATA[
<p>I think OP means the existing open source ecosystem, things like the Python requests library.<p>There’s a real risk that AI kills contributions to traditional open source projects, and we all move to custom libraries written by our own AI.</p>
]]></description><pubDate>Fri, 04 Sep 2026 08:13:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=49561939</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49561939</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49561939</guid></item><item><title><![CDATA[New comment by sjducb in "Static Allocation, Constant Work"]]></title><description><![CDATA[
<p>Why is a try/catch wrapper clutter but a switch case is not?</p>
]]></description><pubDate>Thu, 03 Sep 2026 18:50:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=49554819</link><dc:creator>sjducb</dc:creator><comments>https://news.ycombinator.com/item?id=49554819</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49554819</guid></item></channel></rss>