<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: denotational</title><link>https://news.ycombinator.com/user?id=denotational</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 29 Jul 2026 11:14:11 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=denotational" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by denotational in "Golang Maps: how Swiss Tables replaced the old bucket design"]]></title><description><![CDATA[
<p>The OP, or the Abseil docs?</p>
]]></description><pubDate>Tue, 28 Jul 2026 12:20:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=49082708</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=49082708</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49082708</guid></item><item><title><![CDATA[New comment by denotational in "You probably misunderstand the double slit experiment [video]"]]></title><description><![CDATA[
<p>The delayed-choice quantum eraser wasn’t carried out experimentally until 1999, so I think it’s a bit misleading to say this is what makes the double-slit experiment (first carried out with matter in 1927) so weird.<p>For me, the weird thing about the double-slit experiment for matter is that the excitations of the detector are discrete, i.e. we see individual particles arriving at the detector, as expected under the classical model of matter behaving like particles.<p>It’s only when we send many particles over time, that we can tell that we’ve been sampling from a distribution given by the interfering wave-functions.<p>This suggests that the particle is interfering with itself, thus behaving like a wave, but since we only detect each particle in a single place, it’s still behaving like a particle in some sense.<p>This is very different from the classical wave phenomena seen when we do the double-slit experiment in a water tank, where there is constant interference across the whole axis the whole time (there is no particle-like behaviour at all).</p>
]]></description><pubDate>Mon, 20 Jul 2026 20:54:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=48984752</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=48984752</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48984752</guid></item><item><title><![CDATA[New comment by denotational in "Cursed circuits #6: reverse avalanche oscillator"]]></title><description><![CDATA[
<p>> the usual garbage undergrad textbooks<p>Out of interest, please could you give some examples of textbooks you consider garbage, and some you consider not to be (undergrad or otherwise)?</p>
]]></description><pubDate>Mon, 13 Jul 2026 15:12:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=48893950</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=48893950</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48893950</guid></item><item><title><![CDATA[New comment by denotational in "Job application asked for my SAT scores"]]></title><description><![CDATA[
<p>Fair enough: I was reading the original comment as referring to (thermal) noise intrinsic to the amplifier design itself (as opposed to noise due to imperfections in DC supply or due to coupling with some external transmitter), but this makes more sense, and we should consider the whole system anyway.</p>
]]></description><pubDate>Tue, 23 Jun 2026 10:45:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=48642967</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=48642967</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48642967</guid></item><item><title><![CDATA[New comment by denotational in "Job application asked for my SAT scores"]]></title><description><![CDATA[
<p>I see, so you want to band-limit the noise, and are willing to accept potentially raising the noise floor in the band-limited range, the idea being that if the original noise is sufficiently broad-band, this will still increase SNR?</p>
]]></description><pubDate>Tue, 23 Jun 2026 10:09:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=48642733</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=48642733</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48642733</guid></item><item><title><![CDATA[New comment by denotational in "Job application asked for my SAT scores"]]></title><description><![CDATA[
<p>Off-topic, but can an RC circuit really reduce noise? I can see how it would reduce <i>distortion</i> (which is not the same as noise), but adding passives is surely going to <i>increase</i> thermal noise?</p>
]]></description><pubDate>Tue, 23 Jun 2026 09:27:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=48642410</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=48642410</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48642410</guid></item><item><title><![CDATA[New comment by denotational in "GCC 16 has been released"]]></title><description><![CDATA[
<p>The paper that introduced the implicit lifetime mechanism suggests that std::launder is not required: <a href="https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p0593r6.html#practical-examples" rel="nofollow">https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p05...</a>.</p>
]]></description><pubDate>Thu, 30 Apr 2026 22:27:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=47969072</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47969072</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47969072</guid></item><item><title><![CDATA[New comment by denotational in "GCC 16 has been released"]]></title><description><![CDATA[
<p>If the type is an implicit-lifetime type, then you can legally create an unsigned char array, and then reinterpret_cast a pointer to that to a pointer to the type.<p>See <a href="https://eel.is/c++draft/intro.object#def:object,implicit_creation" rel="nofollow">https://eel.is/c++draft/intro.object#def:object,implicit_cre...</a>.<p><a href="https://eel.is/c++draft/intro.object#15" rel="nofollow">https://eel.is/c++draft/intro.object#15</a> is an example showing this with malloc; the subsequent paragraph further permits it to work with an unsigned char array.</p>
]]></description><pubDate>Thu, 30 Apr 2026 17:01:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=47965327</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47965327</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47965327</guid></item><item><title><![CDATA[New comment by denotational in "Too much discussion of the XOR swap trick"]]></title><description><![CDATA[
<p>Hardware, see <a href="https://en.wikipedia.org/wiki/Tomasulo%27s_algorithm" rel="nofollow">https://en.wikipedia.org/wiki/Tomasulo%27s_algorithm</a>.</p>
]]></description><pubDate>Thu, 16 Apr 2026 22:55:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=47800563</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47800563</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47800563</guid></item><item><title><![CDATA[New comment by denotational in "Category Theory Illustrated – Types"]]></title><description><![CDATA[
<p>> Yes -- in set theory sets can contain themselves<p>Which set theory? ZFC doesn't permit this.<p>Non-well-founded set theories are so non-standard that I think it's wrong, or at least misleading, to claim that unqualified "set theory" permits this.</p>
]]></description><pubDate>Fri, 03 Apr 2026 21:50:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=47632794</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47632794</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47632794</guid></item><item><title><![CDATA[New comment by denotational in "Tech companies defeat bill as AI drains local water supplies"]]></title><description><![CDATA[
<p>Has anyone looked at using greywater for evaporative cooling? I couldn’t find much after a quick Google, aside from small scale domestic usage.</p>
]]></description><pubDate>Sun, 15 Mar 2026 18:01:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47389978</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47389978</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47389978</guid></item><item><title><![CDATA[New comment by denotational in "Changes to OpenTTD Distribution on Steam"]]></title><description><![CDATA[
<p>Given the “rightsholders” have no rights over OpenTTD (only the assets are copyrightable, and OpenTTD has had its own set of open-source assets for the past 15 years), I can’t agree with this.<p>I’m not sure how to interpret this other than Atari not wanting to compete with OpenTTD on Steam.</p>
]]></description><pubDate>Sat, 14 Mar 2026 22:59:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=47382194</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47382194</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47382194</guid></item><item><title><![CDATA[New comment by denotational in "What not to write on your security clearance form (1988)"]]></title><description><![CDATA[
<p>> On another occasion much later, I learned by chance that putting certain provocative information on a security clearance form can greatly speed up the clearance process. But that is another story.<p>Presumably this is the famous (?) story of him listing his race as “mongrel” whenever asked?</p>
]]></description><pubDate>Sat, 21 Feb 2026 17:54:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=47103019</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=47103019</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47103019</guid></item><item><title><![CDATA[New comment by denotational in "Apple XNU: Clutch Scheduler"]]></title><description><![CDATA[
<p>Please could you elaborate?</p>
]]></description><pubDate>Mon, 09 Feb 2026 16:04:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=46946722</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=46946722</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46946722</guid></item><item><title><![CDATA[New comment by denotational in "The microstructure of wealth transfer in prediction markets"]]></title><description><![CDATA[
<p>It’s not really margin since there’s no leverage: the potential loss associated with the bet has to be deposited, so it’s fully collateralised.</p>
]]></description><pubDate>Mon, 19 Jan 2026 18:18:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=46682549</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=46682549</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46682549</guid></item><item><title><![CDATA[New comment by denotational in "Adobe Photoshop 1.0 Source Code (1990)"]]></title><description><![CDATA[
<p>* A set that isn't open isn't (necessarily) closed.<p>* A set that is open can also be closed.</p>
]]></description><pubDate>Tue, 23 Dec 2025 15:13:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=46365917</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=46365917</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46365917</guid></item><item><title><![CDATA[New comment by denotational in "Beginning January 2026, all ACM publications will be made open access"]]></title><description><![CDATA[
<p>> Good publishing costs money<p>Good faith question: aside from hosting costs, what costs are there, given the reviewers are unpaid?</p>
]]></description><pubDate>Thu, 18 Dec 2025 21:31:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=46319067</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=46319067</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46319067</guid></item><item><title><![CDATA[Are conference reviewers harsher when they have a submission of their own?]]></title><description><![CDATA[
<p>Article URL: <a href="https://johnwickerson.wordpress.com/2025/11/19/are-conference-reviewers-harsher-when-they-have-a-submission-of-their-own/">https://johnwickerson.wordpress.com/2025/11/19/are-conference-reviewers-harsher-when-they-have-a-submission-of-their-own/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=46026976">https://news.ycombinator.com/item?id=46026976</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Sun, 23 Nov 2025 20:20:34 +0000</pubDate><link>https://johnwickerson.wordpress.com/2025/11/19/are-conference-reviewers-harsher-when-they-have-a-submission-of-their-own/</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=46026976</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46026976</guid></item><item><title><![CDATA[New comment by denotational in "What is a manifold?"]]></title><description><![CDATA[
<p>Right, but if you fill in the shorthand there’s no reason to think it’s circular; it’s just a normal definition at that point, albeit one without much motivation.</p>
]]></description><pubDate>Tue, 04 Nov 2025 19:21:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=45814875</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=45814875</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45814875</guid></item><item><title><![CDATA[New comment by denotational in "Wireguard FPGA"]]></title><description><![CDATA[
<p>Do you mean specifically as consumer products?<p>There are loads of 10GbE switches from Cisco/Juniper/Arista/et al.</p>
]]></description><pubDate>Sun, 12 Oct 2025 19:27:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=45561040</link><dc:creator>denotational</dc:creator><comments>https://news.ycombinator.com/item?id=45561040</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45561040</guid></item></channel></rss>