<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: rrobukef</title><link>https://news.ycombinator.com/user?id=rrobukef</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sat, 10 Oct 2026 05:22:57 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=rrobukef" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by rrobukef in "Germany transforms former coal mines into Europe's largest lake landscape"]]></title><description><![CDATA[
<p>Up to evaporation and vegetation evaporation changes. Don't lakes have an enormous surface?</p>
]]></description><pubDate>Sat, 10 Oct 2026 01:13:20 +0000</pubDate><link>https://news.ycombinator.com/item?id=50028507</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=50028507</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50028507</guid></item><item><title><![CDATA[New comment by rrobukef in "LRU is harder to beat than the KV-cache papers suggest"]]></title><description><![CDATA[
<p>While AI was clearly used to generate and structure a first draft, I say it has been extensively rewritten by the author. In my experience, AI tends to avoid the first person, instead writing from a passive observer or even using sentences without verbs. The length of the sentences is also more natural. AI had trouble with bind-words in an argument. It just states separate facts and assumes because they are stated in order you have a reasoning. I'm not seeing that here.<p>Of course, idioms are preserved, and not everything is rewritten.<p>I quite ok with this style, it isn't grating. I expect this will be a style we'll see more of in science.</p>
]]></description><pubDate>Sat, 12 Sep 2026 18:32:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=49675558</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=49675558</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49675558</guid></item><item><title><![CDATA[New comment by rrobukef in "OpenAI have no mathematicians capable of understanding what they put out"]]></title><description><![CDATA[
<p>It wouldn't surprise me that even if you opt-out they still train on 'de-identified' chat data. After all, facts cannot be copyrighted and one cannot be sued for unethical behaviour.</p>
]]></description><pubDate>Thu, 10 Sep 2026 09:42:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=49640984</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=49640984</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49640984</guid></item><item><title><![CDATA[New comment by rrobukef in "ADHD and Methylphenidate Use in Prepubertal Children and Adult BMI and Height"]]></title><description><![CDATA[
<p>The fact that the height of adult males with ADHD is greater than that of males without ADHD (first figure/graphs, G & H) should indicate that there is no causative link that the medication has an impact. For females, the average does not show this, but if you look carefully, the variation is bigger. The same selection bias is possible in this case.<p>Instead, to me it looks like there is selection bias going on. Shorter males are more likely to get MPH prescribed is an equally valid explanation.<p>Luckily, the conclusion makes no assertions about height either, nor does the paper make conclusions about any causative relation.</p>
]]></description><pubDate>Mon, 09 Feb 2026 09:46:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=46943463</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=46943463</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46943463</guid></item><item><title><![CDATA[New comment by rrobukef in "Hyundai is now delaying its EV battery plant that was raided by ICE"]]></title><description><![CDATA[
<p>An ESTA is not only for Tourism.</p>
]]></description><pubDate>Fri, 12 Sep 2025 09:22:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=45220293</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=45220293</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45220293</guid></item><item><title><![CDATA[New comment by rrobukef in "Leaked Ice document shows worker detained in Hyundai raid had valid visa"]]></title><description><![CDATA[
<p>That is not what the article says.</p>
]]></description><pubDate>Wed, 10 Sep 2025 14:52:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=45198654</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=45198654</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45198654</guid></item><item><title><![CDATA[New comment by rrobukef in "Big agriculture mislead the public about the benefits of biofuels"]]></title><description><![CDATA[
<p>I disagree, wood pellets are more expensive than oil for energy, especially if only counting the production cost of oil w/o the tax. So even the first time an old forest is cut, when the land changes, it already displaces oil use. At greater expense even, so demand would be reduce the amount energy produced further.<p>Furthermore Europe can also choose to replant non-forest land or replant permanently afterwards.</p>
]]></description><pubDate>Mon, 28 Jul 2025 10:34:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=44709356</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=44709356</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44709356</guid></item><item><title><![CDATA[New comment by rrobukef in "New study finds link between green spaces and police violence"]]></title><description><![CDATA[
<p>Per abstract, the effect is stronger in poor regions (precisely "across five levels of social deprivation"). They did control for affluence.</p>
]]></description><pubDate>Wed, 14 May 2025 19:59:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=43988582</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=43988582</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43988582</guid></item><item><title><![CDATA[New comment by rrobukef in "The New York Times Has Spent $10.8M in Its Legal Battle with OpenAI So Far"]]></title><description><![CDATA[
<p>Yes, and libraries pay for that access. They also don't obfuscate the origin or remove the advertising. Don't equate libraries with what OpenAI does.</p>
]]></description><pubDate>Wed, 05 Feb 2025 19:39:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=42953948</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=42953948</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42953948</guid></item><item><title><![CDATA[New comment by rrobukef in "Nearly 50% of researchers quit science within a decade, huge study reveals"]]></title><description><![CDATA[
<p>Quitting implies there is a problem, the authors even state so. But is it really¹? I'm quite sure "Over 90% of college students quit college within a decade". They graduate.<p>Should science grow exponentially? Is there no value in a PhD graduate that isn't a researcher?  Get everyone a PhD and chain them to a desk for research!<p>(1) Except for gender (and others not in scope) where past discrimination is still felt.</p>
]]></description><pubDate>Wed, 09 Oct 2024 00:13:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=41783197</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41783197</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41783197</guid></item><item><title><![CDATA[New comment by rrobukef in "Nearly 50% of researchers quit science within a decade, huge study reveals"]]></title><description><![CDATA[
<p>Every tenured professor is expected to have at very least one PhD student. A PhD takes on average less than 8 years and a tenure more than 20.<p>Though I think a more reasonable replacement rate is 10+ PhD graduates per professor. I do not think this problematic somehow, unlike what overproduction implies.</p>
]]></description><pubDate>Wed, 09 Oct 2024 00:00:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=41783085</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41783085</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41783085</guid></item><item><title><![CDATA[New comment by rrobukef in "Beastie Boys dismantled their gold record plaque"]]></title><description><![CDATA[
<p>Don't you scenario-test your processes? /s</p>
]]></description><pubDate>Thu, 22 Aug 2024 14:04:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=41320406</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41320406</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41320406</guid></item><item><title><![CDATA[New comment by rrobukef in "Greenwich schools to ban most cellphones, Apple Watches, Fitbits and more"]]></title><description><![CDATA[
<p>Pacemaker and hearing aids as well, eventually a temp-teacher will cause a right mess.</p>
]]></description><pubDate>Sun, 18 Aug 2024 18:11:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=41284086</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41284086</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41284086</guid></item><item><title><![CDATA[New comment by rrobukef in "Someone's been messing with Python's floating point subnormals"]]></title><description><![CDATA[
<p>Wouldn't the compiler optimize (x-y)!=0 to x!=y? Seems like a good optimisation to me and one probably in accordance to the C standard.<p>It would also make it impossible to have a decent non-zero check for<p>if ((x-y)!=0) progress((x-t)/(x-y));</p>
]]></description><pubDate>Fri, 16 Aug 2024 05:35:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=41263442</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41263442</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41263442</guid></item><item><title><![CDATA[New comment by rrobukef in "Show HN: Hyve Tile, a puzzle game but I can't solve it"]]></title><description><![CDATA[
<p>It is a neat game. With a bit of trying you can find some patterns:<p>* Every tile has two orientations 0 and 180 degrees which allows to cut a lot of possibilities for small fields.
* Three tiles can be flipped together, meaning if you have one or two tiles unsolved, your idea won't work out.
* Large fields have more solutions.<p>Sadly I found some bugs:<p>* World generation does not work correctly: there is an unmovable field (nice idea!) but during generation it gets moved. This makes some puzzles unsolvable. The randomizer should ignore this field.
* The undo function has some issues undoing the wrong move or skipping a move. Fully undoing a puzzle does not always result in a solution. If this happens while you're playing you get locked.</p>
]]></description><pubDate>Mon, 29 Jul 2024 23:18:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=41104647</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=41104647</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41104647</guid></item><item><title><![CDATA[New comment by rrobukef in "Judge dismisses DMCA copyright claim in GitHub Copilot suit"]]></title><description><![CDATA[
<p>They are trained to duplicate, we just hope they do so by abstracting patterns. Various techniques stack the deck to make it difficult to memorize everything but it still happens easily, especially for replicated knowledge.<p>"You train them by comparing the output to the original." -><p>You train neural networks by producing output for known input, comparing the output with a cost-function to the expected output, and updating your system towards minimizing the cost, repeatedly, until it stops improving or you tire of waiting.
Cost functions must have a minimal value when the output matches exactly the expected to work mathematically. Engineering-wise you can possibly fudge things and they probably do so ... now.<p>I don't agree with your critiques. It isn't an oversimplification, published code literally works as stated.</p>
]]></description><pubDate>Wed, 10 Jul 2024 13:35:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=40926731</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=40926731</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40926731</guid></item><item><title><![CDATA[New comment by rrobukef in "'Underwater bicycle' propels swimmers forward at superhuman speed"]]></title><description><![CDATA[
<p>Imagine how fast Phelps could swim with this!</p>
]]></description><pubDate>Wed, 08 May 2024 14:49:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=40298715</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=40298715</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40298715</guid></item><item><title><![CDATA[New comment by rrobukef in "A confusing probability question: Red and green balls in an urn"]]></title><description><![CDATA[
<p>You have an urn of 50 red and 50 green balls. Roll a die and add a red ball for every pip. What is the probability of the next ball you take being red?<p>I say both can be a question in Statistics I where you calculate probabilities based on combinations.<p>So I'll say it depends on the level of education for how the question gets interpreted and saying those who never took Bayesian reasoning and consider n unknown are wrong gets elitist.</p>
]]></description><pubDate>Wed, 31 Jan 2024 07:47:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=39201183</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=39201183</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39201183</guid></item><item><title><![CDATA[New comment by rrobukef in "A confusing probability question: Red and green balls in an urn"]]></title><description><![CDATA[
<p>So? There's plenty of problem statements with irrelevant data. Children are also getting taught to determine which is relevant in  class.<p>But also, it's not irrelevant because for two cases the probability stays equal. Calculating the exact chance is still an interesting problem and it could have been dumbed down for twitter only.</p>
]]></description><pubDate>Wed, 31 Jan 2024 07:39:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=39201125</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=39201125</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39201125</guid></item><item><title><![CDATA[New comment by rrobukef in "A confusing probability question: Red and green balls in an urn"]]></title><description><![CDATA[
<p>Watch out. Because your bits are indexed you have a different problem than before. The first red ball does not give you a significant bit.<p>Instead: Make a sample and now you know that it is greater than a random number unknown to you. Can you derive any knowledge about your next sample?</p>
]]></description><pubDate>Wed, 31 Jan 2024 07:28:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=39201049</link><dc:creator>rrobukef</dc:creator><comments>https://news.ycombinator.com/item?id=39201049</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39201049</guid></item></channel></rss>