<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: mattlangston</title><link>https://news.ycombinator.com/user?id=mattlangston</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Sat, 30 May 2026 21:37:37 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=mattlangston" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by mattlangston in "Vibe coding and agentic engineering are getting closer than I'd like"]]></title><description><![CDATA[
<p>Software engineering is software engineering.<p>An ace software engineer is not an ace because of tooling.<p>It's not the plane, it's the pilot, or something like that.</p>
]]></description><pubDate>Thu, 07 May 2026 02:58:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=48044935</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=48044935</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48044935</guid></item><item><title><![CDATA[New comment by mattlangston in "Claude Code's source code has been leaked via a map file in their NPM registry"]]></title><description><![CDATA[
<p>Boris Cherny has said that Claude Code is simply a client of the public Claude API, so this may be a good thing for Anthropic to demonstrate Claude API best practices. Maybe CC "leaking" is just preparation for open sourcing Claude Code.</p>
]]></description><pubDate>Tue, 31 Mar 2026 17:28:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=47590726</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47590726</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47590726</guid></item><item><title><![CDATA[New comment by mattlangston in "Autoresearch next step: async collaborative for agents SETI home style"]]></title><description><![CDATA[
<p>I had the same SETI inspiration yesterday of "autoresearch swarms". Andrej and I had no coordination - we just both had the same idea at the same time.<p>Experiments already running. Write up:<p>"Autoresearch on DGX Spark: Error Bars, GPU Pools, and the Case for an Autonomous Research Swarm": <a href="https://github.com/matt-langston/autoresearch/discussions/1" rel="nofollow">https://github.com/matt-langston/autoresearch/discussions/1</a><p>My fork of Andrej's repo if you want to join in: <a href="https://github.com/matt-langston/autoresearch" rel="nofollow">https://github.com/matt-langston/autoresearch</a></p>
]]></description><pubDate>Sun, 08 Mar 2026 23:44:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=47302911</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47302911</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47302911</guid></item><item><title><![CDATA[New comment by mattlangston in "Inside the M4 Apple Neural Engine, Part 1: Reverse Engineering"]]></title><description><![CDATA[
<p>The future is bright for software engineers.<p>The big takeaway isn't reverse engineering the ANE per se, but what Manjeet could do with his software engineering skills when accelerated by AI.<p>This is a good example of the present state of software engineering. Not future state - present state.</p>
]]></description><pubDate>Mon, 02 Mar 2026 14:49:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=47218660</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47218660</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47218660</guid></item><item><title><![CDATA[New comment by mattlangston in "Dario Amodei – "We are near the end of the exponential" [video]"]]></title><description><![CDATA[
<p>This is a duplicate of <a href="https://news.ycombinator.com/item?id=47005565">https://news.ycombinator.com/item?id=47005565</a>. Please have all conversations there about Dwarkesh Patel's interview with Dario Amodei.</p>
]]></description><pubDate>Sun, 15 Feb 2026 05:18:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=47021268</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47021268</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47021268</guid></item><item><title><![CDATA[New comment by mattlangston in "Dario Amodei – "We are near the end of the exponential" [video]"]]></title><description><![CDATA[
<p>Dwarkesh Patel interview with Dario Amodei (Anthropic CEO)</p>
]]></description><pubDate>Sat, 14 Feb 2026 02:09:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47010793</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47010793</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47010793</guid></item><item><title><![CDATA[Dario Amodei – "We are near the end of the exponential" [video]]]></title><description><![CDATA[
<p>Article URL: <a href="https://www.youtube.com/watch?v=n1E9IZfvGMA">https://www.youtube.com/watch?v=n1E9IZfvGMA</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=47010792">https://news.ycombinator.com/item?id=47010792</a></p>
<p>Points: 2</p>
<p># Comments: 2</p>
]]></description><pubDate>Sat, 14 Feb 2026 02:09:38 +0000</pubDate><link>https://www.youtube.com/watch?v=n1E9IZfvGMA</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47010792</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47010792</guid></item><item><title><![CDATA[New comment by mattlangston in "Something Big Is Happening"]]></title><description><![CDATA[
<p>The frontier-of-knowledge point is the right question. My own research is a case in point - I apply experimental physics methods to LLMs, measuring their equations of motion in search of a unified framework for how and why they work. Some of the answers I'm looking for may not exist in any training data.<p>That's where the 4.5->4.6 jump hit me hardest - not routine tasks but problems where I need the model to reason about stuff it hasn't seen. It still fails, but it went from confidently wrong to productively wrong, if that makes sense. I can actually steer it now.<p>The cerebellum analogy resonates. I'd go further - it's becoming something I think out loud with, which is changing how I approach problems, not just how fast I solve them.</p>
]]></description><pubDate>Fri, 13 Feb 2026 15:13:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=47003616</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=47003616</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47003616</guid></item><item><title><![CDATA[New comment by mattlangston in "Something Big Is Happening"]]></title><description><![CDATA[
<p>PhD physicist (Stanford/SLAC), Research Software Engineer doing low-level systems work in C/C++ and LLM research. Not a founder or investor — just a practitioner.<p>One data point for this thread: the jump from Opus 4.5 to 4.6 is not linear. The minor version number is misleading. In my daily work the capability difference is the largest single-model jump I've experienced, and I don't say that casually — I spent my career making precision measurements.<p>I keep telling myself I should systematically evaluate GPT-5.3 Codex and the other frontier models. But Opus is so productive now that I can't justify the time. That velocity of entrenchment is itself a signal, and I think it quietly supports the author's thesis.<p>I'm not a doomer — I'm an optimist about what prepared individuals and communities can do with this. But I shared this article with family and walked them through it in detail before I ever saw it on HN. That should tell you something about where I think we are.</p>
]]></description><pubDate>Thu, 12 Feb 2026 09:18:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=46986565</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=46986565</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46986565</guid></item><item><title><![CDATA[New comment by mattlangston in "Is particle physics dead, dying, or just hard?"]]></title><description><![CDATA[
<p>Good question. It's mostly the third — but let me unpack that.<p>The Standard Model predicts a specific value for the weak mixing angle, which determines the electron's vector coupling. My measurement at SLAC, along with other SLD measurements, consistently preferred a slightly different value than what LEP (the European competitor experiment) found using a different technique.<p>The key word there is "different technique." SLD used a polarized beam of electrons — a completely novel approach at the time — which gave us direct access to the left-right asymmetry without needing to untangle final-state effects. LEP extracted the same parameter from b-quark forward-backward asymmetry. Two fundamentally different methods probing the same physics, with different systematic exposures, giving different answers.<p>Both experiments had good resolution. We spent enormous effort characterizing the systematics, and they're small compared to the statistical uncertainty. But the two most precise determinations of this parameter disagreed at roughly the 3-sigma level — and that disagreement has never been explained. The world average splits the difference, and the Standard Model prediction is consistent with that average, so you could say "the SM is fine" if you squint. But nobody knows why the two experiments don't agree with each other.<p>It could be an unidentified systematic error in one experiment. It could be that something beyond the Standard Model is subtly shifting one measurement and not the other. That ambiguity is exactly what makes it a "dangling thread" rather than a resolved question.</p>
]]></description><pubDate>Thu, 12 Feb 2026 08:24:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=46986186</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=46986186</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46986186</guid></item><item><title><![CDATA[New comment by mattlangston in "Is particle physics dead, dying, or just hard?"]]></title><description><![CDATA[
<p>Fair - that sounds hyperbolic. But my point is specific: if the weak mixing angle is shifted from the Standard Model value, one of the standard explanations is a heavier cousin of the Z boson mixing in.<p>Many of those models naturally include a dark matter candidate. I didn't mean to imply 'we found dark matter' — it's that the theories which could explain the discrepancy often come with one attached.</p>
]]></description><pubDate>Tue, 10 Feb 2026 19:42:45 +0000</pubDate><link>https://news.ycombinator.com/item?id=46965679</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=46965679</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46965679</guid></item><item><title><![CDATA[New comment by mattlangston in "Is particle physics dead, dying, or just hard?"]]></title><description><![CDATA[
<p>Experimental particle physicist here. It's just hard.<p>I measured the electron's vector coupling to the Z boson at SLAC in the late 1990s, and the answer from that measurement is: we don't know yet - and that's the point.<p>Thirty years later, the discrepancy between my experiment and LEP's hasn't been resolved.<p>It might be nothing. It might be the first whisper of dark matter or a new force. And the only way to find out is to build the next machine. That's not 'dead', that's science being hard.<p>My measurement is a thread that's been dangling for decades, waiting to be pulled.</p>
]]></description><pubDate>Tue, 10 Feb 2026 02:05:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=46954434</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=46954434</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46954434</guid></item><item><title><![CDATA[New comment by mattlangston in "Claude Sonnet 4.5"]]></title><description><![CDATA[
<p>It does well with screenshot-calculus for me. For example, I pasted a screenshot of the Layer Norm equation into Claude Code 2 and asked:<p>"Differentiate y(x) w.r.t x, gamma and beta."<p>It not only produced the correct result, but it understood the context - I didn't tell it the context was layer norm, back-propagation and matrices.<p>This release is a step function for my use cases.<p>My screenshot came from here: <a href="https://docs.pytorch.org/docs/stable/generated/torch.nn.LayerNorm.html" rel="nofollow">https://docs.pytorch.org/docs/stable/generated/torch.nn.Laye...</a></p>
]]></description><pubDate>Tue, 30 Sep 2025 02:46:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=45421409</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=45421409</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45421409</guid></item><item><title><![CDATA[My Interview with Claude Code]]></title><description><![CDATA[
<p>Article URL: <a href="https://mattlangston.com/my-interview-with-claude-code/">https://mattlangston.com/my-interview-with-claude-code/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=44780352">https://news.ycombinator.com/item?id=44780352</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Sun, 03 Aug 2025 22:24:29 +0000</pubDate><link>https://mattlangston.com/my-interview-with-claude-code/</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44780352</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44780352</guid></item><item><title><![CDATA[New comment by mattlangston in "Emacs: The macOS Bug"]]></title><description><![CDATA[
<p>fwiw I live in [macOS emacs](<a href="https://emacsformacosx.com/" rel="nofollow">https://emacsformacosx.com/</a>) all day long for systems engineering (C/C++) and have 201 open buffers, an uptime of 57 days and ~540 MB memory usage.</p>
]]></description><pubDate>Thu, 31 Jul 2025 04:32:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=44742327</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44742327</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44742327</guid></item><item><title><![CDATA[New comment by mattlangston in "Claude Code weekly rate limits"]]></title><description><![CDATA[
<p>I have both a Claude subscription plan and console credits as my backup, which I thought was a reasonable solution.</p>
]]></description><pubDate>Tue, 29 Jul 2025 01:48:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=44718064</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44718064</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44718064</guid></item><item><title><![CDATA[New comment by mattlangston in "New theory proposes time has three dimensions, with space as a secondary effect"]]></title><description><![CDATA[
<p>According to the published paper (linked in the article) Kletetschka's theory correctly predicts several experimentally measured quantities of the Standard Model. The two that jumped out at me were:<p>1) the weak mixing angle<p>2) the three particle generations and the ratio of their masses<p>This is remarkable to me.</p>
]]></description><pubDate>Mon, 23 Jun 2025 05:41:44 +0000</pubDate><link>https://news.ycombinator.com/item?id=44352751</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44352751</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44352751</guid></item><item><title><![CDATA[New comment by mattlangston in "Visualizing environmental costs of war in Hayao Miyazaki's Nausicaä"]]></title><description><![CDATA[
<p>"... Miyazaki warns against the dangers of harmful technology and the moral implications of its use."<p>Apropos for current times.</p>
]]></description><pubDate>Sat, 21 Jun 2025 00:59:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=44333586</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44333586</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44333586</guid></item><item><title><![CDATA[New comment by mattlangston in "Andrej Karpathy's YC AI SUS talk on the future of the industry"]]></title><description><![CDATA[
<p>Very nice find @pudiklubi. Thank you.</p>
]]></description><pubDate>Wed, 18 Jun 2025 20:24:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=44313011</link><dc:creator>mattlangston</dc:creator><comments>https://news.ycombinator.com/item?id=44313011</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44313011</guid></item></channel></rss>