<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: CaptainNegative</title><link>https://news.ycombinator.com/user?id=CaptainNegative</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 27 Oct 2026 12:33:20 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=CaptainNegative" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by CaptainNegative in "Three new discoveries in mathematics, computer science, and physics"]]></title><description><![CDATA[
<p>I think it would have to if you're honest with yourself. Any proof of a novel implication of P=NP, such as !ETH, should increase your belief in the two sets' equality. Just as any novel implication of P≠NP should adjust your belief the other way.<p>My thesis was around showing implications of few different hardness conjectures. So grounded was ETH that I introduced it in a side note as Conjecture 0 <i>after</i> Conjectures 1 and 2. I don't think it's easy to express how substantial of a Bayesian update this is all around.</p>
]]></description><pubDate>Tue, 27 Oct 2026 00:38:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=50253266</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=50253266</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50253266</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Integer multiplication below n log n"]]></title><description><![CDATA[
<p>Are time and distance, and consequently velocity, even well defined enough at that level of precision on any physical scale?</p>
]]></description><pubDate>Wed, 07 Oct 2026 03:37:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=49987811</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=49987811</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49987811</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Sharing AI progress in mathematics"]]></title><description><![CDATA[
<p>Yes and no. It's pretty normal for students to get scooped, sometimes even multiple times (ask me how I know...).<p>It's much less common for students to have their entire thesis direction removed from under them, as might be the case for someone working in fine-grained complexity assuming 3SUM has no subquadratic algorithms, or working assuming ~UGC. Both of which (publicly) seemed like perfectly valid research directions until a couple hours ago.<p>There might be stuff to salvage from their conditional results anyway, but this is not your average scooping.</p>
]]></description><pubDate>Wed, 07 Oct 2026 01:42:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=49986889</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=49986889</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49986889</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Jev Can't Be Calibrated"]]></title><description><![CDATA[
<p>I asked Jev and it said 41% yes 59% no.</p>
]]></description><pubDate>Wed, 23 Sep 2026 16:25:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=49818503</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=49818503</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49818503</guid></item><item><title><![CDATA[New comment by CaptainNegative in "What do Visa and Mastercard do? An intro to card networks"]]></title><description><![CDATA[
<p>That is the cash purchaser paying the retailer more than they need to. There's no conservation law stating that store revenue is a constant and missed revenue from one customer must be made up for by another, nor that every additional operating cost must be directly pushed onto customers.<p>Similarly, we do not say that October shoppers transfer wealth to Black Friday shoppers, even though the only tangible difference from your scenario is an irrelevant temporal one.</p>
]]></description><pubDate>Thu, 10 Sep 2026 07:49:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=49639916</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=49639916</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49639916</guid></item><item><title><![CDATA[New comment by CaptainNegative in "True Rate of Unemployment"]]></title><description><![CDATA[
<p>> I  guess I've been living outside of the US for way too long<p>If you're the kind of person to invent new definitions to fit statistics and then cry about the fabrication's implications then perhaps it's better for Americans if you keep living abroad.<p>> Food insecure—At times during the year, these households were uncertain of having or unable to acquire enough food to meet the needs of all their members because they had insufficient money or other resources for food.
<a href="https://www.ers.usda.gov/topics/food-nutrition-assistance/food-security-in-the-us/key-statistics-graphics" rel="nofollow">https://www.ers.usda.gov/topics/food-nutrition-assistance/fo...</a></p>
]]></description><pubDate>Wed, 02 Sep 2026 07:49:48 +0000</pubDate><link>https://news.ycombinator.com/item?id=49533124</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=49533124</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=49533124</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Mathematicians still don't know the fastest way to multiply numbers"]]></title><description><![CDATA[
<p>They don't count the additions or shifts because they're both linear time operations, and thus provably at least as fast as multiplication (both in an asymptotic and exact sense). In any case where multiplication is super-linear, this means that addition and shifting are are <i>not</i> the temporal bottleneck at any stage in the algorithm where you have a constant number of those operations surrounding at least one multiplicative recursive call (on numbers of similar magnitudes).<p>If additions were truly free, an even easier optimal algorithm would just be repeated addition involving zero multiplications.</p>
]]></description><pubDate>Sun, 19 Jul 2026 05:30:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=48965249</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=48965249</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48965249</guid></item><item><title><![CDATA[New comment by CaptainNegative in "TikTok disproportionately served anti-Democratic videos during the 2024 election"]]></title><description><![CDATA[
<p>Does he also run a time machine? He bought TikTok only earlier this year.</p>
]]></description><pubDate>Sat, 23 May 2026 01:28:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=48243627</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=48243627</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48243627</guid></item><item><title><![CDATA[New comment by CaptainNegative in "New arXiv policy: 1-year ban for hallucinated references"]]></title><description><![CDATA[
<p>why is the standard response when someone comes down with a serious illness to bring them into a facility where serious illnesses spread readily?<p>sometimes the presently available solutions are subpar. people go with what's available. it's not ideal, but it is practical.</p>
]]></description><pubDate>Fri, 15 May 2026 11:55:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=48147487</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=48147487</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48147487</guid></item><item><title><![CDATA[New comment by CaptainNegative in "GitLab announces workforce reduction and end of their CREDIT values"]]></title><description><![CDATA[
<p>I don't know why someone with a cousin named Pablo Diego José Francisco de Paula Juan Nepomuceno María de los Remedios Cipriano de la Santísima Trinidad Ruiz y Picasso is that much of a better hire than someone named Jón Bergþóruson, 王小明, Sukarno (with no surname), גִּדְעוֹן בֶּן־גּוּרְיוֹן , or Karl-Theodor Maria Nikolaus Johann Jacob Philipp Wilhelm Franz Joseph Sylvester Freiherr von und zu Guttenberg. None of whom would classically qualify as diversity hires.<p>Hiring someone in the off chance that their ethnicity gives them some unique critical unknown unknown that will pop up half a decade down the line resides in the same mental space as a programmer writing `if (5 == i)` in case a future programmer accidentally deletes an =. It's just speculative defensiveness whose efficacy is simply not well established by actual research. And, in my view, just works to confound actual signals that, evidently, gitlab and other employers feel get unfairly overshadowed when emphasizing explicitly pro-diversity hiring policies.</p>
]]></description><pubDate>Tue, 12 May 2026 00:49:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=48102810</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=48102810</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48102810</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Bets on US-Iran ceasefire show signs of insider knowledge, say experts"]]></title><description><![CDATA[
<p>There could also be some degree of "(5) bandwagon effect" players, who pump money into an outcome specifically to get people talking about its possibility, thereby increasing its probability of coming into fruition.</p>
]]></description><pubDate>Mon, 23 Mar 2026 20:53:55 +0000</pubDate><link>https://news.ycombinator.com/item?id=47494957</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=47494957</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47494957</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Wikipedia was in read-only mode following mass admin account compromise"]]></title><description><![CDATA[
<p>> but at some point a state based cyber attack that just wipes wikipedia off the net is deeply damaging to our modern society’s ability to agree on common facts<p>Haven't we hit that point already with bad faith (and potentially government-run) coordinated editing and voting campaigns, as both Wales and Sanger have been pointing out for a while now?<p>See, for example,<p>* Sanger: <a href="https://en.wikipedia.org/wiki/User:Larry_Sanger/Nine_Theses" rel="nofollow">https://en.wikipedia.org/wiki/User:Larry_Sanger/Nine_Theses</a><p>* Wales: <a href="https://en.wikipedia.org/wiki/Talk:Gaza_genocide/Archive_22#Statement_from_Jimbo_Wales" rel="nofollow">https://en.wikipedia.org/wiki/Talk:Gaza_genocide/Archive_22#...</a><p>* PirateWires: <a href="https://www.piratewires.com/p/how-wikipedia-is-becoming-a-massive-pay-to-play-scheme" rel="nofollow">https://www.piratewires.com/p/how-wikipedia-is-becoming-a-ma...</a></p>
]]></description><pubDate>Thu, 05 Mar 2026 18:13:08 +0000</pubDate><link>https://news.ycombinator.com/item?id=47265109</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=47265109</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47265109</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Faster Than Dijkstra?"]]></title><description><![CDATA[
<p>> You can generally reduce the problem to a finite alphabet by taking the finite subset that actually appears in the input.<p>You can generally sort any array in constant time by taking that constant to be the time it takes to sort the array using bubble sort.</p>
]]></description><pubDate>Fri, 13 Feb 2026 19:49:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=47006911</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=47006911</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47006911</guid></item><item><title><![CDATA[New comment by CaptainNegative in "The Feynman Lectures on Physics (1961-1964)"]]></title><description><![CDATA[
<p>I feel like the section on primality testing with Fermat's test should at least make a shout out to Carmichael numbers and that for some inputs the probability you get a false positive result is 1.</p>
]]></description><pubDate>Wed, 11 Feb 2026 06:15:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=46971513</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=46971513</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46971513</guid></item><item><title><![CDATA[New comment by CaptainNegative in "P vs. NP and the Difficulty of Computation: A ruliological approach"]]></title><description><![CDATA[
<p>This is so tangentially related to the P vs NP problem that the title is basically pure clickbait. Remove every sentence relating to polynomial anything and the information content of the write-up doesn't change at all.</p>
]]></description><pubDate>Sat, 31 Jan 2026 00:07:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=46831746</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=46831746</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46831746</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Why does SSH send 100 packets per keystroke?"]]></title><description><![CDATA[
<p>What's a concrete threat model here? If you're sending data to an ssh server, you already need to trust that it's handling your input responsibly. What's the scenario where it's fine that the client doesn't know if the server is using pastebin for backing up session dumps, but it's problematic that the server tells the client that it's not accepting a certain timing obfuscation technique?</p>
]]></description><pubDate>Fri, 23 Jan 2026 01:20:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=46727232</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=46727232</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46727232</guid></item><item><title><![CDATA[New comment by CaptainNegative in "State regulators vote to keep utility profits high angering customers across CA"]]></title><description><![CDATA[
<p>Capping margins at a percentage also directly breeds inefficiencies. If you could spend $10M to fix a problem that costs you $4M/yr, you're effectively paying $10M now to <i>lose</i> $400k in annual profit potential.</p>
]]></description><pubDate>Mon, 22 Dec 2025 23:43:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=46360633</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=46360633</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46360633</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Implications of AI to schools"]]></title><description><![CDATA[
<p>It depends on their test dataset. If the test set was written 80% by AI and 20% by humans, a tool that labels every essay as AI-written would have a reported accuracy of 80%. That's why other metrics such as specificity and sensitivity (among many others) are commonly reported as well.<p>Just speaking in general here -- I don't know what specific phrasing TurnItIn uses.</p>
]]></description><pubDate>Mon, 24 Nov 2025 19:02:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=46037782</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=46037782</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46037782</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Two billion email addresses were exposed"]]></title><description><![CDATA[
<p>TOTP inside a password manager doesn't make much sense to me. What's the point of two factor auth if both factors are stored together?</p>
]]></description><pubDate>Fri, 07 Nov 2025 00:28:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=45842290</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=45842290</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45842290</guid></item><item><title><![CDATA[New comment by CaptainNegative in "Determination of the fifth Busy Beaver value"]]></title><description><![CDATA[
<p>Only finitely many values of BB can be mathematically determined. Once your Turing Machines become expressive enough to encode your (presumably consistent) proof system, they can begin encoding nonsense of the form "I will halt only after I manage to derive a proof that I won't ever halt", which means that their halting status (and the corresponding Busy Beaver value) fundamentally cannot be proven.</p>
]]></description><pubDate>Wed, 17 Sep 2025 13:04:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=45275362</link><dc:creator>CaptainNegative</dc:creator><comments>https://news.ycombinator.com/item?id=45275362</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45275362</guid></item></channel></rss>