<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"><channel><title><![CDATA[A Mathematician Lurking in the TechUnderWorld: Red Soma]]></title><description><![CDATA[Red Soma cuts through the surface with technical X-rays, connecting AI, markets, mathematics, and human impact into one sharp picture. Not simplified, not diluted, not dressed up for technological tourists. Precise. Brutal. Useful.]]></description><link>https://www.josecrespophd.org/s/red-soma</link><image><url>https://substackcdn.com/image/fetch/$s_!gOaz!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F56c7ab0d-ed6f-4d23-83dc-074a72323366_720x720.png</url><title>A Mathematician Lurking in the TechUnderWorld: Red Soma</title><link>https://www.josecrespophd.org/s/red-soma</link></image><generator>Substack</generator><lastBuildDate>Sun, 09 Aug 2026 11:33:26 GMT</lastBuildDate><atom:link href="https://www.josecrespophd.org/feed" rel="self" type="application/rss+xml"/><copyright><![CDATA[Jose Crespo, PhD]]></copyright><language><![CDATA[en]]></language><webMaster><![CDATA[josecrespo@substack.com]]></webMaster><itunes:owner><itunes:email><![CDATA[josecrespo@substack.com]]></itunes:email><itunes:name><![CDATA[Jose Crespo PhD]]></itunes:name></itunes:owner><itunes:author><![CDATA[Jose Crespo PhD]]></itunes:author><googleplay:owner><![CDATA[josecrespo@substack.com]]></googleplay:owner><googleplay:email><![CDATA[josecrespo@substack.com]]></googleplay:email><googleplay:author><![CDATA[Jose Crespo PhD]]></googleplay:author><itunes:block><![CDATA[Yes]]></itunes:block><item><title><![CDATA[Everything You Know About AI Will Soon Become Obsolete]]></title><description><![CDATA[Thinking Machines Are Not Just AI: Who Is Assembling the Next Artificial Cognitive Frankenstein?]]></description><link>https://www.josecrespophd.org/p/everything-you-know-about-ai-is-about</link><guid isPermaLink="false">https://www.josecrespophd.org/p/everything-you-know-about-ai-is-about</guid><dc:creator><![CDATA[Jose Crespo PhD]]></dc:creator><pubDate>Thu, 16 Jul 2026 22:53:17 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!Ms4_!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!Ms4_!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!Ms4_!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 424w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 848w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 1272w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 1456w" sizes="100vw"><img src="https://substackcdn.com/image/fetch/$s_!Ms4_!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png" width="1268" height="1241" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1241,&quot;width&quot;:1268,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2437740,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://www.josecrespophd.org/i/207352086?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="https://substackcdn.com/image/fetch/$s_!Ms4_!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 424w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 848w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 1272w, https://substackcdn.com/image/fetch/$s_!Ms4_!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F70083c59-b544-43bd-afb4-6f7eff78bfea_1268x1241.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Whether you are an AI newbie or a senior AI engineer, you may be risking your future by using the wrong AI mindset.</p><p>Let me explain.</p><p>Most of us have been taught two fatal fallacies about AI.</p><p><strong>The first is that today&#8217;s transformative generative AI</strong> is somehow the only possible form of machine intelligence&#8202;&#8212;&#8202;and that the road to AGI is simply to give it more speed, more memory, more data, and more compute.</p><p><strong>The second follows directly from the first</strong>: that the mathematics and programming you need to learn are basically linear algebra and GPU programming. Forget geometry, topology and category theory. Forget Bayesian reasoning and probability distributions. Just multiply bigger matrices on bigger clusters and wait for intelligence to emerge.</p><p><strong>But there is a problem, one the AI industry rarely puts center stage.</strong></p><p>While the public is being sold an endlessly optimistic future of faster GPUs and ever-larger LLMs, the numbers are beginning to tell an uncomfortable story.</p><p>Today&#8217;s AI may already be approaching the end of its reign as the uncontested paradigm. You do not believe me?</p><p>Then look at the relationship between performance, computational cost, and marginal returns.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!GQXw!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!GQXw!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 424w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 848w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 1272w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 1456w" sizes="100vw"><img src="https://substackcdn.com/image/fetch/$s_!GQXw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png" width="1456" height="910" 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srcset="https://substackcdn.com/image/fetch/$s_!GQXw!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 424w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 848w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 1272w, https://substackcdn.com/image/fetch/$s_!GQXw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b94b201-c350-4c0a-9b82-c4496eadc334_1512x945.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption"><strong>The uncomfortable truth of the AI industry: diminishing marginal returns.</strong></figcaption></figure></div><p>As computation, memory, parameter counts, and training resources increase, marginal returns do not rise proportionally. They begin to flatten. You <a href="https://arxiv.org/abs/2203.15556">spend vastly more to extract increasingly smaller improvements</a>.</p><p>That means every new generation of frontier LLMs risks becoming dramatically more expensive&#8202;&#8212;&#8202;not merely in money, but in energy, chips, infrastructure, and computational complexity&#8202;&#8212;&#8202;while the gains become harder and harder to extract.</p><p><strong>So the numbers leave us facing an inescapable conclusion.</strong></p><p>Either a new breed of machine intelligence, built on new mathematics and new technology, takes over and resets this insane trajectory of escalating energy and computational cost&#8230;</p><p><strong>or we may be heading toward a third AI winter.</strong></p><p>And that new machine may look very little like the AI you know today.</p><p>Okay, I can already hear you saying: <em>Sure, current AI has its flaws, but isn&#8217;t it still better to keep improving LLMs and building new frameworks around them than to bet on a completely different kind of AI that does not even exist yet and sounds like science fiction?</em></p><p>Not so fast, dear reader.</p><p>This new AI is not merely mathematics confined to books or technology still waiting for a blueprint. Startups and established companies are already building the technology, testing prototypes, and turning parts of it into real products.</p><p>Most of these systems are not mainstream yet. Some are still early. But the results suggest that they could move from the lab into wider use&#8202;&#8212;&#8202;and begin taking serious market share&#8202;&#8212;&#8202;over the next few years.</p><h3>The New Frankenstein Factories Are Already Here</h3><p>The next thinking machine is not emerging from a single laboratory.</p><p>It will emerge from an ecosystem.</p><p>And the right mindset now begins with understanding how that ecosystem actually works.</p><p>One company builds the nervous system.</p><p>Another develops the body.</p><p>Another specializes in memory.</p><p>Another teaches the machine to interact with the physical world.</p><p>Another models biology itself.</p><p>Even Google DeepMind, the company that currently comes closest to <a href="https://deepmind.google/blog/announcing-google-deepmind/">integrating many of these ideas under one roof</a>, is better understood as the <a href="https://blog.google/innovation-and-ai/technology/ai/april-ai-update/">center of a much larger Alphabet ecosystem</a> than as a completely self-contained AI factory.</p><p>Around it, Alphabet has built specialized organizations such as Isomorphic Labs, dedicated to AI-first biology and drug discovery, and Intrinsic, focused on intelligent robotics and physical AI. These companies operate independently, but collaborate with Google DeepMind wherever their technologies overlap.</p><p>That is the first sign that the future of AI is already changing before our eyes.</p><p>Until now, the standard model was simple: a startup grows around one star product&#8202;&#8212;&#8202;usually an LLM chatbot built on generative transformer AI.</p><p>Those days may be coming to an end.</p><p>Instead of one promising rookie startup, or one already consolidated giant laboratory trying to solve everything, we are beginning to see an AI industry organized around networks of specialized suppliers and cognitive supply chains.</p><p><strong>And yes, Frankenstein is the perfect metaphor for what is happening.</strong></p><p>Different companies are developing different parts of the same emerging system: better neurons, more capable bodies, richer world models, biological reasoning, and machines that improve through experience.</p><p><strong>No single company has assembled the complete monster.</strong></p><p>But the factory chain producing its organs is already running.</p><p>And here are the companies currently running the show&#8202;&#8212;&#8202;some old, some rookies, but all converging toward a new mode of AI production.</p><p>The consequence may be enormous: the LLM-based AI we have seen so far could end up looking like a mere cognitive toy beside what is coming over the next few years</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!LxEw!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0e08cb26-4cc2-4e9b-b302-24767e476af2_1603x981.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" 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class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption"><strong>Most of these names may be Greek to you now, but they will become the rock stars of AI in the years ahead.</strong></figcaption></figure></div><h3>The Organs</h3><p>Victor Frankenstein would feel strangely at home in the current evolution of AI.</p><p>The difference is that, instead of collecting a few dead organs, stitching them together, adding electricity and&#8202;&#8212;&#8202;well, you already know the rest&#8202;&#8212;&#8202;he would become an AI engineer and assemble something far more abstract.</p><p>Not biological organs. <strong>Mathematical organs disguised as technology.</strong></p>
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   ]]></content:encoded></item><item><title><![CDATA[The AI Coder Everyone Feared Has Finally Arrived]]></title><description><![CDATA[But one flaw remains: when context collapses, repair becomes attack.]]></description><link>https://www.josecrespophd.org/p/the-best-ai-software-engineer-ever</link><guid isPermaLink="false">https://www.josecrespophd.org/p/the-best-ai-software-engineer-ever</guid><dc:creator><![CDATA[Jose Crespo PhD]]></dc:creator><pubDate>Thu, 25 Jun 2026 06:45:04 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!uGXh!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!uGXh!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!uGXh!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 424w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 848w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 1272w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 1456w" sizes="100vw"><img src="https://substackcdn.com/image/fetch/$s_!uGXh!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png" width="1280" height="720" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:720,&quot;width&quot;:1280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1634504,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://www.josecrespophd.org/i/203513040?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="https://substackcdn.com/image/fetch/$s_!uGXh!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 424w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 848w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 1272w, https://substackcdn.com/image/fetch/$s_!uGXh!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65795582-f78f-46c6-8d12-49e0276f72b8_1280x720.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">Figures, animations, diagrams, and plots were created by the author using Stable Diffusion, Blender, and Python libraries.</figcaption></figure></div><p>We are living through a brutal artificial-cognitive age.</p><p>At first glance, the <a href="https://www.anthropic.com/news/fable-mythos-access">latest US government move against Anthropic&#8217;s Fable 5</a> looks like paranoid overreaction: Washington <a href="https://fortune.com/2026/06/13/anthropic-disables-fable-mythos-export-controls-national-security-threat/">treating a frontier model as if it were the first child of Skynet</a>, and the jokes write themselves. You know the continuation of the story: a coding assistant was suddenly handled like fissile material, and consequently <a href="https://www.aljazeera.com/news/2026/6/13/us-orders-anthropic-to-disable-ai-models-for-all-foreign-nationals">access vanished worldwide</a>.</p><p>Before we join in the mockery, we should take a closer look at the case.</p><p>Fable 5&#8217;s defining strength is simple: it is the <a href="https://www.anthropic.com/news/claude-fable-5-mythos-5">most capable AI software engineer released</a> so far, <a href="https://every.to/vibe-check/anthropic-mythos-our-fable-vibe-check">beating every competitor outright</a>. It can tackle and <a href="https://venturebeat.com/technology/anthropic-brings-mythos-to-the-masses-with-claude-fable-5-its-most-powerful-generally-available-model-ever">solve real-world problems, both at the surface level and deep within software systems</a>. This alone puts Fable 5 at the limit of what LLMs have been able to achieve so far</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!ob8u!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!ob8u!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 424w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 848w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 1272w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 1456w" sizes="100vw"><img src="https://substackcdn.com/image/fetch/$s_!ob8u!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png" width="1456" height="1573" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1573,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1106446,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://www.josecrespophd.org/i/203513040?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="https://substackcdn.com/image/fetch/$s_!ob8u!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 424w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 848w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 1272w, https://substackcdn.com/image/fetch/$s_!ob8u!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F016dff5a-e077-4a71-ba5f-addf061f1cdf_3540x3825.png 1456w" sizes="100vw"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption"><strong>The First AI Super-Software Engineer Worth the Name.</strong>Across a wide range of benchmarks, Fable 5 massively outperforms the rest of the LLM market in complex software-system construction: the kind of work that, until now, required full teams of developers, architects, and senior engineers.</figcaption></figure></div><p>You want examples?</p><p><a href="https://venturebeat.com/technology/anthropic-brings-mythos-to-the-masses-with-claude-fable-5-its-most-powerful-generally-available-model-ever">Stripe, the payments company, pointed </a><strong><a href="https://venturebeat.com/technology/anthropic-brings-mythos-to-the-masses-with-claude-fable-5-its-most-powerful-generally-available-model-ever">Fable 5 at Stripe&#8217;s own fifty-million-line Ruby codebase</a></strong><a href="https://venturebeat.com/technology/anthropic-brings-mythos-to-the-masses-with-claude-fable-5-its-most-powerful-generally-available-model-ever"> and asked it to perform a single migration across the entire system in a day</a> &#8212; work the company estimated would have taken a team of engineers more than two months. Stripe described the result as <a href="https://www.anthropic.com/news/claude-fable-5-mythos-5">compressing months of engineering into days</a>.</p><p>Read that slowly.</p><p>Because the impressive part is not the line count. It is the deep semantic coherence.</p><p>That is not autocomplete at scale. It is engineering.</p><div class="pullquote"><p>It kept coherence across Stripe&#8217;s own giant Ruby codebase and turned what used to be months of coordinated engineering pain into one migration task.</p></div><p>The benchmarks in the table above only confirm the example and show us how brutal the emerging pattern is.</p><p>Fable 5 dominates the coding stack, where that dominance makes the human software engineer without AI a real piece of archaeology: real software tasks, hard agentic execution, code quality, long-horizon work, and tool-driven autonomy.</p><p>And now I can already hear some critics &#8212; critics I can even agree with: benchmarks are not always a reliable way to prove the effectiveness of a modern AI, because those separate traits should be tested together in realistic scenarios.</p><p><strong>Fine.</strong></p><p>Fable 5 seems to have taken the challenge personally: <a href="https://www.vellum.ai/blog/claude-fable-5-and-mythos-5-benchmarks-explained">it completed Pok&#233;mon FireRed from start to finish</a> using only raw screen screenshots, with no maps, no navigation aids, and no hidden game-state information. Earlier Claude models needed a complex helper harness just to play Pok&#233;mon at all.</p><div class="pullquote"><p>In plain English: it played the old Pok&#233;mon game like a human staring at the screen, not like a bot reading the game from the inside.</p></div><p><strong>Why does that matter?</strong></p><p>Because Pok&#233;mon sounds like a joke only until you remember what the game actually demands.</p><p>The model has to see through pixels, remember where it has been, navigate towns, caves, battles, menus, dead ends, you name it&#8230; recover when it gets lost, and keep going after thousands of small decisions.</p><p>That is not a toy skill. That is what we can call continuity.</p><p>And continuity is exactly what separates answering a question from actually getting something done.</p><h2><strong>Is Fable 5 Really That Good &#8212; And That Dangerous?</strong></h2><p>Now comes the surprise: how can a technology this excellent be treated, at the same time, as dangerous?</p><p>Paradoxical? Not after you have read this section.</p><p>Washington may have misread the mechanism, but it did not hallucinate the danger. The danger is real, though we can agree it is not where they think it is.</p><p>That contrasts brutally with Anthropic&#8217;s public position, which is straightforward: Fable 5 was built with heavy safeguards to prevent misuse in malware development, cyber abuse, and other high-risk domains.</p><p><strong>But reality has derailed Fable 5 from that ideal safety track</strong>: it may be the best AI software engineer we have ever seen, yet it still struggles at the <a href="https://www.theregister.com/security/2026/06/15/feds-freaked-over-fable-5-after-simple-fix-this-code-prompt-not-jailbreak-says-researcher/5255827">exact border where the same repair operation can mean fixing legitimate code in one context</a> and <a href="https://snyk.io/blog/fable-mythos-suspension-security-takeaways/">enabling malware by repairing the wrong code in another</a>.</p><p>That is the danger. Not that Fable 5 is evil, but that it cannot reliably know what the repair is for. As happens with the whole family of transformer LLMs, they do not cleanly separate context from concept, because context and concept are folded into the same token representation, not carried in two different lanes. <em><a href="https://medium.com/ai-advances/the-thinking-machine-that-google-and-anthropic-will-ship-together-f3a3a898b79c">Do you remember the distinction between functor and profunctor?</a></em></p><p><strong>So why the heck does the blunder happen precisely in the feature Anthropic has been selling as Fable 5&#8217;s killer capability?</strong></p><p>Pay attention to this, because here the paradox snaps into focus: the same thing that makes Fable 5 the best AI software developer is also what makes it dangerous.</p><div class="pullquote"><p>Fable 5 is still built on the same transformer family of technology behind every other LLM.</p></div><p>Look at the animation below and the trick becomes obvious.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="https://substackcdn.com/image/fetch/$s_!VPLQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!VPLQ!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 424w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 848w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 1272w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 1456w" sizes="100vw"><img src="https://substackcdn.com/image/fetch/$s_!VPLQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif" width="720" height="405" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:405,&quot;width&quot;:720,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1555641,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/gif&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://www.josecrespophd.org/i/203513040?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="https://substackcdn.com/image/fetch/$s_!VPLQ!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 424w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 848w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 1272w, https://substackcdn.com/image/fetch/$s_!VPLQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c66aa6-dc99-4b45-9b1a-8c5d854a7099_720x405.gif 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption"><strong>Fable 5 in a Nutshell.</strong>The core of Fable 5, shown as a compact animation: a composite, nested AI engine where different technological pieces merge like an AI Frankenstein monster. That same architecture explains the paradox: astonishing software-development capabilities on one side, and dangerous safety gaps on the other when vulnerable code is placed inside the wrong malware context.</figcaption></figure></div>
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