<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: dfdz</title><link>https://news.ycombinator.com/user?id=dfdz</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 28 Apr 2026 21:20:48 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=dfdz" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by dfdz in "Bumblebee queens choose to hibernate in pesticide-contaminated soil"]]></title><description><![CDATA[
<p>About a decade ago, TIME Magazine published A World Without Bees [1]<p>Since then, many people seem to think bees are on the edge of extinction.<p>In fact, there are more bees now than ever before [2]<p>[1] <a href="https://content.time.com/time/covers/0,16641,20130819,00.html" rel="nofollow">https://content.time.com/time/covers/0,16641,20130819,00.htm...</a><p>[2] <a href="https://www.marketplace.org/2024/05/16/honeybee-populations-are-hitting-record-numbers-werent-they-dying-off-before/" rel="nofollow">https://www.marketplace.org/2024/05/16/honeybee-populations-...</a></p>
]]></description><pubDate>Sun, 20 Oct 2024 19:15:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=41897770</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=41897770</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41897770</guid></item><item><title><![CDATA[New comment by dfdz in "The language you speak changes your perception of time"]]></title><description><![CDATA[
<p>> Participants were instructed in their respective native languages to estimate roughly how much time it took<p>If they really want to claim that the “language you speak” changes your perception of time, then they should have avoided the confounding variable of translation discrepancies in experiment instruction.<p>For example, design some simple UI which does not need to be explained.</p>
]]></description><pubDate>Sun, 17 Mar 2024 00:35:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=39730763</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=39730763</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39730763</guid></item><item><title><![CDATA[New comment by dfdz in "A door at a Swedish library was accidentally left open"]]></title><description><![CDATA[
<p>> They say a reader does not steal and a thief does not read.<p>Profound or contrapositive [1]?<p>P = reader<p>Q = not steal<p>not P = does not read<p>not Q = Theif<p>P - > Q<p>not Q - > not P<p>[1] <a href="https://en.wikipedia.org/wiki/Contraposition" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Contraposition</a></p>
]]></description><pubDate>Thu, 09 Nov 2023 06:56:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=38201960</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=38201960</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38201960</guid></item><item><title><![CDATA[New comment by dfdz in "Thoughts about what worked in math circles"]]></title><description><![CDATA[
<p>> the story from France of the second-grader who, asked what 2x3 equals, replied "3x2", knowing only that multiplication was commutative.<p>This is a classic joke making fun of the issues with French education based on the Bourbaki [1] school of mathematics, see [2] for more discussion. Different issues than the USA, but also bad in my opinion.<p>[1] <a href="https://en.m.wikipedia.org/wiki/Nicolas_Bourbaki" rel="nofollow noreferrer">https://en.m.wikipedia.org/wiki/Nicolas_Bourbaki</a><p>[2] <a href="https://web.archive.org/web/20230315185224/https://www.uni-muenster.de/Physik.TP/~munsteg/arnold.html" rel="nofollow noreferrer">https://web.archive.org/web/20230315185224/https://www.uni-m...</a></p>
]]></description><pubDate>Sun, 27 Aug 2023 04:13:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=37279387</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=37279387</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37279387</guid></item><item><title><![CDATA[New comment by dfdz in "On the paper “Exploring the MIT Mathematics and EECS Curriculum Using LLMs” [pdf]"]]></title><description><![CDATA[
<p><a href="https://arxiv.org/abs/2306.08997" rel="nofollow noreferrer">https://arxiv.org/abs/2306.08997</a><p>“arXiv will not consider removal for reasons such as journal similarity detection, nor failure to obtain consent from co-authors, as these do not invalidate the license applied by the submitter”<p>The submitter can mark the paper as “withdrawn” but it will remain available<p><a href="https://news.ycombinator.com/item?id=32780403">https://news.ycombinator.com/item?id=32780403</a></p>
]]></description><pubDate>Sun, 25 Jun 2023 00:23:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=36464011</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=36464011</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36464011</guid></item><item><title><![CDATA[New comment by dfdz in "Tell HN: It is impossible to disable Google 2FA using backup codes"]]></title><description><![CDATA[
<p>Best advice in this thread:<p><a href="https://landing.google.com/advancedprotection/" rel="nofollow">https://landing.google.com/advancedprotection/</a></p>
]]></description><pubDate>Thu, 19 Jan 2023 18:01:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=34443389</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=34443389</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34443389</guid></item><item><title><![CDATA[New comment by dfdz in "Best Calculator for a Nerdy Child"]]></title><description><![CDATA[
<p>I did not realize RPN is not available for CAS, that is disappointing.<p>Is an HP 50G really the last of its kind? Hard to suggest since it’s priced like a collectors item now…</p>
]]></description><pubDate>Tue, 27 Dec 2022 05:07:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=34145292</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=34145292</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34145292</guid></item><item><title><![CDATA[New comment by dfdz in "Best Calculator for a Nerdy Child"]]></title><description><![CDATA[
<p>HP Prime on Reverse Polish Notation (RPN) mode [1, Page 47]. RPN is a basic stack based programming language, which is really fun to use [2].<p>[1]<a href="https://h30434.www3.hp.com/psg/attachments/psg/palm-webossoftware/252120/1/HP_Prime_User_Guide_EN.pdf" rel="nofollow">https://h30434.www3.hp.com/psg/attachments/psg/palm-webossof...</a><p>[2]<a href="https://en.m.wikipedia.org/wiki/Reverse_Polish_notation" rel="nofollow">https://en.m.wikipedia.org/wiki/Reverse_Polish_notation</a></p>
]]></description><pubDate>Tue, 27 Dec 2022 03:47:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=34144857</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=34144857</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34144857</guid></item><item><title><![CDATA[New comment by dfdz in "I worked at LastPass as an engineer"]]></title><description><![CDATA[
<p>One key feature of 1Password is the use of a secret key in addition to a master password.<p>See page 10 [1] which explains how the secret key provides extra entropy (which makes it much harder to brute force a user who choses a weak password). Also see Story 1 on page 11 [1].<p>[1] <a href="https://1passwordstatic.com/files/security/1password-white-paper.pdf" rel="nofollow">https://1passwordstatic.com/files/security/1password-white-p...</a></p>
]]></description><pubDate>Sun, 25 Dec 2022 18:10:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=34129555</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=34129555</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34129555</guid></item><item><title><![CDATA[New comment by dfdz in "Fusion breakthrough is a noteworthy step"]]></title><description><![CDATA[
<p>> Fusion “Breakthrough” Won’t Lead to Practical Fusion Energy<p>>Just one more step on the long road to commercialization<p>Road<p>noun<p>1. a wide way leading from one place to another<p>2. a series of events or a course of action that will lead to a particular outcome.<p>Source: google</p>
]]></description><pubDate>Thu, 15 Dec 2022 02:46:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=33994471</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=33994471</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33994471</guid></item><item><title><![CDATA[New comment by dfdz in "Turing Machines Are Recurrent Neural Networks (1996)"]]></title><description><![CDATA[
<p>Turning Machines Are Magic: The Gathering [1]<p>[1]<a href="https://arxiv.org/abs/1904.09828" rel="nofollow">https://arxiv.org/abs/1904.09828</a></p>
]]></description><pubDate>Mon, 05 Dec 2022 23:02:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=33873174</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=33873174</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33873174</guid></item><item><title><![CDATA[New comment by dfdz in "Cheat Codes for Life I Know at 36 That I Wish I Knew at 26"]]></title><description><![CDATA[
<p>> "Busyness is a sign of poverty that will eventually lead to personal bankruptcy"<p>"People who like pseudo-profound quotes are not so smart, science says" [1,2]<p>[1] <a href="https://qz.com/566050/people-who-like-pseudo-profound-quotes-are-not-so-smart-says-science" rel="nofollow">https://qz.com/566050/people-who-like-pseudo-profound-quotes...</a><p>[2] <a href="https://journal.sjdm.org/15/15923a/jdm15923a.pdf" rel="nofollow">https://journal.sjdm.org/15/15923a/jdm15923a.pdf</a></p>
]]></description><pubDate>Tue, 25 Oct 2022 16:36:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=33332908</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=33332908</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33332908</guid></item><item><title><![CDATA[New comment by dfdz in "Starlink Aviation"]]></title><description><![CDATA[
<p>> flex, not a tool<p>Suppose that a plane has 250 seats and makes 50 trans-con flights a month.<p>Airline A decides to advertise  having fast internet access in their flight, and raises ticket prices by $2 a seat to fund it.<p>(250)(50)(2) = 25000<p>Airline B stays with slow barely usable internet.<p>Which ticket do you book?</p>
]]></description><pubDate>Wed, 19 Oct 2022 03:52:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=33257407</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=33257407</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=33257407</guid></item><item><title><![CDATA[New comment by dfdz in "Ask HN: LaTeX is great. Has anyone tried to build something better?"]]></title><description><![CDATA[
<p>This does not directly address your question, but it does really help with finding errors:<p><a href="https://ctan.org/pkg/texfot?lang=en" rel="nofollow">https://ctan.org/pkg/texfot?lang=en</a><p>texfot – Filter clutter from the output of a TEX run<p>The package provides a small Perl script to filter the online output from a TEX run, attempting to show only those messages which probably deserve some change in the source. The TEX invocation itself need not change.<p>I would highly suggest using it!</p>
]]></description><pubDate>Mon, 26 Sep 2022 18:50:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=32986764</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=32986764</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32986764</guid></item><item><title><![CDATA[New comment by dfdz in "Tell HN: ArXiv won't let authors remove their paper from the website"]]></title><description><![CDATA[
<p>> ArXiv won't let authors remove their paper from the website<p>This is an essential feature of arXiv to maintain academic integrity and encourage serious academic submissions.<p>If you realize that your paper contains an error, then you can mark the paper was "withdrawn". People have limited time so if you do this no one read the paper (everyone makes mistakes sometimes).<p>As long as you do not make a habit of uploading and withdrawing papers, then it will not matter.</p>
]]></description><pubDate>Fri, 09 Sep 2022 18:09:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=32782851</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=32782851</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32782851</guid></item><item><title><![CDATA[New comment by dfdz in "Who owns Tesla’s data?"]]></title><description><![CDATA[
<p>I expect more from IEEE than a bait-and-switch:<p>> license plate on that car showed that it was registered to ... Steer EV ... Agents served a subpoena on Steer EV for the renter’s billing and contact details. Steer EV provided those—and also voluntarily supplied historical GPS data for the vehicle ...  In this case, the GPS data likely came from a device Steer EV itself installed in the vehicle<p>> according to researchers, Tesla is potentially in a position to provide similar GPS tracks</p>
]]></description><pubDate>Mon, 08 Aug 2022 16:37:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=32387762</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=32387762</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32387762</guid></item><item><title><![CDATA[New comment by dfdz in "Controversy continues over whether hot water freezes faster than cold"]]></title><description><![CDATA[
<p>In case you missed this in the article, the effect you described is a possible explanation of why the effect happens …<p>> Or perhaps external factors come into play: A layer of frost in a freezer can act as an insulator, keeping heat from leaking out of a cold cup, whereas a hot cup will melt the frost and cool faster.</p>
]]></description><pubDate>Fri, 01 Jul 2022 15:03:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=31947362</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=31947362</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=31947362</guid></item><item><title><![CDATA[New comment by dfdz in "Dropbox Shop Beta"]]></title><description><![CDATA[
<p>On hacker news, it is equal plausible that the comment is being downvoted since it is not completely serious, so I will add the disclaimer that:<p>The purpose of my above comment is to add to the conversation by considering this development on the context of past community response to Dropbox product announcements</p>
]]></description><pubDate>Wed, 22 Jun 2022 21:53:13 +0000</pubDate><link>https://news.ycombinator.com/item?id=31842341</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=31842341</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=31842341</guid></item><item><title><![CDATA[New comment by dfdz in "Dropbox Shop Beta"]]></title><description><![CDATA[
<p>I have a few qualms with this app.<p>As a shopify user, you can already build such a system for yourself quite trivially. 
From the Shopify organization admin, click Stores. Click Create store. In the Store type section, select the purpose of your new store. In the Store details section, enter a name and an URL.</p>
]]></description><pubDate>Wed, 22 Jun 2022 21:35:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=31842158</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=31842158</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=31842158</guid></item><item><title><![CDATA[New comment by dfdz in "Contra Wirecutter on the IKEA air purifier"]]></title><description><![CDATA[
<p>> Their move to a paid subscription was very odd<p>above several people note that<p>> the IKEA one … is the only one in the article they don't earn a commission on when someone buys it<p>How do you want wirecutter to stay economically viable?</p>
]]></description><pubDate>Tue, 21 Jun 2022 10:35:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=31822349</link><dc:creator>dfdz</dc:creator><comments>https://news.ycombinator.com/item?id=31822349</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=31822349</guid></item></channel></rss>