AI Builders Digest — March 29, 2026

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Andrej Karpathy (I like to train large deep neural nets. Previously Director of AI @ Tesla, founding team @ OpenAI, PhD @ Stanford.)

Andrej Karpathy shared an interesting experiment with blog writing and LLMs. He drafted a blog post, spent 4 hours meticulously improving it with an LLM to make it convincing, then asked the LLM to argue the opposite position - which successfully demolished his original argument. This highlights how LLMs are extremely competent at arguing almost any direction, making them useful as tools for forming opinions by asking different perspectives, though one must be careful about sycophancy.

https://x.com/karpathy/status/2037921699824607591

Andrej Karpathy（我喜欢训练大型深度神经网络。曾任特斯拉AI总监，OpenAI创始团队成员，斯坦福博士。）

Andrej Karpathy分享了一个关于博客写作和LLM的有趣实验。他起草了一篇博客文章，花了4个小时用LLM精心改进，使其具有说服力，然后要求LLM提出相反的观点——这成功地推翻了他原来的论点。这突显了LLM在几乎任何方向上都具有极强的辩论能力，使其成为通过不同角度形成观点的有用工具，但人们必须警惕奉承行为。

https://x.com/karpathy/status/2037921699824607591

Swyx (achieve ambition with intentionality, intensity, integrity & insanity. affiliations: @dxtipshq @cognition @temporalio @aidotengineer @latentspacepod)

Swyx discussed how false equivalence can be detrimental, sharing how it cost Zuck @GoogleDeepMind and plagued his first devtools startup and policy making in his home country. He emphasized that power laws compound and most systems aren't set up for one thing to matter 50x more than others. His rules: carefully bet on a very small set of things, don't hedge but keep reversibility, set triggers/levels to monitor if you're wrong, and set tests to double down early if you're more right than you thought.

https://x.com/swyx/status/2037969691910848941

Swyx（以意图性、强度、正直和疯狂的方式实现抱负。所属机构：@dxtipshq @cognition @temporalio @aidotengineer @latentspacepod）

Swyx讨论了虚假等价物的危害性，分享它如何让扎克伯格失去了谷歌DeepMind的机会，以及如何困扰他的第一个devtools创业公司和家乡的政策制定。他强调幂律是复合的，大多数系统都没有为某个事情比其他事情重要50倍而设置。他的规则：谨慎地押注非常少的事情，不要对冲但保持可逆性，设置触发器/水平来监控你是否错误，如果比你想象的更正确，设置测试来加倍投入。

https://x.com/swyx/status/2037969691910848941

Josh Woodward (VP, @Google @GoogleLabs @GeminiApp @GoogleAIStudio)

Josh Woodward shared a recommendation for a tool that's seeing great uptake, encouraging users to try it this weekend.

https://x.com/joshwoodward/status/2037940551400735224

Josh Woodward（谷歌副总裁，@Google @GoogleLabs @GeminiApp @GoogleAIStudio）

Josh Woodward推荐了一个正在获得大量使用的工具，鼓励用户在周末试用。

https://x.com/joshwoodward/status/2037940551400735224

Peter Yang expressed interest in talking to Grok about all his bookmarked posts but noted he's too lazy to scroll through manually. He also commented on X asking him to thumbs down his own reply, suggesting that the thumbs down button should be visible for original posts too since he still sees AI slop in his feed. Additionally, he observed that many fast-growing companies like Linear and Ramp want to hire ex-founders as PMs, suggesting this is a good litmus test for how good a company is at attracting talent and giving founders agency to make real impact.

https://x.com/petergyang/status/2038068968792162594
https://x.com/petergyang/status/2038067082223554732
https://x.com/petergyang/status/2038058600715935817

Peter Yang（我分享实用的AI教程和访谈 | 加入14万+读者在 https://t.co/XYKTmGVH14 | Roblox产品经理）

Peter Yang表示有兴趣与Grok谈论他所有已收藏的帖子，但他懒得手动滚动浏览。他还评论X让他给自己的回复点踩，建议踩按钮也应该对原始帖子可见，因为他的信息流中仍然看到AI垃圾内容。此外，他观察到许多快速发展的公司如Linear和Ramp希望雇佣创始人作为产品经理，这表明这是衡量公司吸引人才能力和给予创始人真正影响力的良好标尺。

https://x.com/petergyang/status/2038068968792162594
https://x.com/petergyang/status/2038067082223554732
https://x.com/petergyang/status/2038058600715935817

Nan Yu (head of product @linear)

Nan Yu commented that TED and 30u30 need to be taught in business schools as examples of complete brand self-destruction. She also shared her return to Japan.

https://x.com/thenanyu/status/2038025287955280120
https://x.com/thenanyu/status/2038021774105784782
https://x.com/thenanyu/status/2038018254229094448

Nan Yu（Linear产品负责人）

Nan Yu评论TED和30u30需要在商学院作为品牌完全自毁的例子来教授。她还分享了她回到日本的消息。

https://x.com/thenanyu/status/2038025287955280120
https://x.com/thenanyu/status/2038021774105784782
https://x.com/thenanyu/status/2038018254229094448

Amjad Masad (ceo @replit. civilizationist)

Amjad Masad shared his excitement about a development and discussed how AI enables everyone to build apps, which allows the best engineers to focus a layer deeper and do more ambitious things to advance the platforms themselves and expand what's possible. This reflects his concept from four years ago about "the 1000x engineer."

https://x.com/amasad/status/2038053670907007165
https://x.com/amasad/status/2037951485418344835

Amjad Masad（Replit CEO，文明主义者）

Amjad Masad分享了他对某项发展的兴奋之情，并讨论了AI如何让每个人都能构建应用程序，这使得最好的工程师能够深入一层，做更雄心勃勃的事情来推进平台本身并扩展可能性。这反映了他四年前关于"1000倍工程师"的概念。

https://x.com/amasad/status/2038053670907007165
https://x.com/amasad/status/2037951485418344835

Guillermo Rauch (@vercel CEO)

Guillermo Rauch shared updates about Vercel's company offsite in Arizona and finally being able to ship the text layout of his dreams, which gained significant attention. He also shared an interesting observation: "The agent is the computer."

https://x.com/rauchg/status/2037993361450336714
https://x.com/rauchg/status/2037950897909862526
https://x.com/rauchg/status/2037935190073569326

Guillermo Rauch（Vercel CEO）

Guillermo Rauch分享了Vercel在亚利桑那州公司闭包的更新，以及终于能够发布他梦想的文本布局，这引起了广泛关注。他还分享了一个有趣的观察："代理就是计算机"。

https://x.com/rauchg/status/2037993361450336714
https://x.com/rauchg/status/2037950897909862526
https://x.com/rauchg/status/2037935190073569326

Aaron Levie (ceo @box - your business lives in content. unleash it with AI)

Aaron Levie shared a post with significant engagement, focusing on AI and business content.

https://x.com/levie/status/2037928306977509601

Aaron Levie（Box CEO - 你的业务存在于内容中。用AI释放它）

Aaron Levie分享了一个获得大量关注的帖子，关注AI和商业内容。

https://x.com/levie/status/2037928306977509601

Garry Tan (President & CEO @ycombinator —Founder @garryslist—Creator of GStack—designer/engineer who helps founders—SF Dem accelerating the boom loop)

Garry Tan discussed how Richmond disabled its Flock cameras to "protect immigrants," leading to a 33% jump in car thefts, with immigrant shopkeepers eventually begging to bring them back. He noted that opposing safety cameras is a luxury belief. He also shared that GStack is still growing and embraced "boiling the ocean" as a strategy.

https://x.com/garrytan/status/2038054087451885747
https://x.com/garrytan/status/2037982376148734119
https://x.com/garrytan/status/2037979742608253202

Garry Tan（Y Combinator总裁兼CEO —Garryslist创始人—GStack创造者—帮助创始人的设计师/工程师—推动繁荣的旧金山民主党人）

Garry Tan讨论了里士满如何禁用其Flock相机以"保护移民"，导致盗窃案激增33%，移民店主最终恳求恢复摄像头。他指出，反对安全相机是一种奢侈的信仰。他还分享GStack仍在增长，并拥抱"海洋沸腾"作为策略。

https://x.com/garrytan/status/2038054087451885747
https://x.com/garrytan/status/2037982376148734119
https://x.com/garrytan/status/2037979742608253202

Zara Zhang (Builder. Dangerously skips permissions. Harvard'17. GitHub: https://t.co/KCuEajezlL YouTube: https://t.co/8xzbGWtf6w)

Zara Zhang shared a key insight about agent products: "A good agent product should be able to do things that its creator did not think it could do." She contrasted internet-era products where you design all functionalities and the product works according to expectations, with agent products where you unleash them and they surprise and delight you with capabilities you didn't think were possible. She also commented that "Human context window is the new wall."

https://x.com/zarazhangrui/status/2038144755478237654
https://x.com/zarazhangrui/status/2037983921946923034

Zara Zhang（建造者。危险地跳过权限。哈佛17届。GitHub: https://t.co/KCuEajezlL YouTube: https://t.co/8xzbGWtf6w）

Zara Zhang分享了一个关于代理产品的重要见解："一个好的代理产品应该能够做到其创造者没有想到它能做到的事情。"她对比了互联网时代的产品——你设计所有功能，产品按照你的期望工作，与代理产品——你释放它们，它们会以你没想到的能力让你惊喜和愉悦。她还评论说："人类上下文窗口是新墙"。

https://x.com/zarazhangrui/status/2038144755478237654
https://x.com/zarazhangrui/status/2037983921946923034

Nikunj Kothari (partner @fpvventures - investing in seed/A. previous: early hire @meter, @opendoor, @atlassian & others. love @shimoleejhaveri + 👦👧)

Nikunj Kothari shared his personal version of an ad and invited interested people to a poker event in SF hosted by his friend Satya Kamdar. He also wrote about why incentives are not aligned to disclose properly and methods of creative accounting in a post from December.

https://x.com/nikunj/status/2038123479355318775
https://x.com/nikunj/status/2037990692530872359
https://x.com/nikunj/status/2037942421762478164

Nikunj Kothari（FPV Ventures合伙人 - 投资种子/A轮。曾在@meter、@opendoor、@atlassian等公司早期任职。爱@shimoleejhaveri + 👦👧）

Nikunj Kothari分享了他个人版本的广告，并邀请感兴趣的人参加他在旧金山朋友Satya Kamdar主持的扑克活动。他还写了一篇12月的文章，讨论为什么激励措施不利于正确披露以及创造性会计的方法。

https://x.com/nikunj/status/2038123479355318775
https://x.com/nikunj/status/2037990692530872359
https://x.com/nikunj/status/2037942421762478164

Peter Steinberger (Polyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world @openclaw🦞)

Peter Steinberger announced MCPorter (MCP->CLI) version 0.8.0 with improvements including stronger OAuth handling, valid JSON output on fallback paths, better mcporter call behavior, generated CLIs handling object-valued args better, and improved keep-alive/daemon reliability. He also discussed the challenges of working on successful open source, noting the need to develop thick skin when dealing with such issues.

https://x.com/steipete/status/2038074759527981416
https://x.com/steipete/status/2037988925818519763

Peter Steinberger（多代理父亲ClawFather。从退休回来搞AI，帮助龙虾接管世界@openclaw🦞）

Peter Steinberger宣布了MCPorter（MCP->CLI）0.8.0版本，改进包括更强的OAuth处理、在后备路径上输出有效JSON、更好的mcporter调用行为、生成的CLI更好地处理对象值参数、提高的keep-alive/daemon可靠性。他还讨论了在成功的开源项目中工作的挑战，指出在这样的情况下需要培养厚脸皮。