如何构建 AI 就绪的第二大脑

✍ Penguin🕐 2026-06-03📦 8.0 KB 🟢 已读 𝕏 文章列表

文章指出大多数人的第二大脑只是信息的存储库，甚至遗忘80%的内容。真正的第二大脑应帮助记忆、连接、决策和重用思考。AI的加入使这一点更加重要，因为它能通过你的上下文而不仅仅是单一提示词来变得更好。文章提供了一个简单的文件夹结构、笔记格式和每周工作流程，指导如何构建一个能为AI提供上下文的记忆系统。

第二大脑 Obsidian AI 个人知识管理 PKM 工作流笔记方法效率 Codex 思考系统

# Your second brain is useless until AI can read the patterns inside it **作者**: Penguin **日期**: 2026-06-02T12:18:19.000Z **来源**: [https://x.com/PenguinWeb3/status/2061784475718090930](https://x.com/PenguinWeb3/status/2061784475718090930) --- ![Image](/doc/2409/image/img_820b95e1c558.jpg) ## How To Build An AI Ready Second Brain In Obsidian most people use Obsidian like a prettier notes app, they save: - random ideas - useful threads - articles - videos - prompts - project notes - half-finished thoughts then forget 80% of it exists, and the problem isn't Obsidian the problem is that their second brain is only storage a real second brain should help you: - remember, connect, decide, and reuse your own thinking and AI makes this way more important because Codex become much better when they can see your actual context not just one prompt, but your patterns ## 1. Why most second brains fail most second brains fail because people treat them like libraries they focus on: - perfect folders - tags - dashboards - templates - graph view - aesthetic systems but none of that matters if the notes do not help you think better a second brain isn't useful because it stores more information it becomes useful when it can answer questions like: - what do I keep thinking about? - what mistakes do I repeat? - what ideas are connected? - what do I already know about this topic? - what should I do next? - what did I try before? that's the difference between a notes app and a thinking system ## 2. What your second brain should actually store do not only save information, save FULL context your vault should include: - ideas - observations - decisions - mistakes - projects - prompts - workflows - articles you like - posts you like - personal rules - things that feel fake - useful examples - repeated patterns the goal is not to collect everything, your goal is to build a system that understands how you think because AI is not only improved by more information, it's improved by better context ## 3. Simple folder structure you don't need a complicated folder tree, start simple example: ``` 00 Inbox 01 Ideas 02 Projects 03 Research 04 Workflows 05 Prompts 06 Mistakes 07 Decisions 08 People / Companies 09 Writing / Voice 10 Archive ``` what each folder does: ``` 00 Inbox quick dump for anything you do not want to lose 01 Ideas raw thoughts, article ideas, business ideas, random observations 02 Projects things you are building, testing, writing, or planning 03 Research articles, videos, tools, examples, market research 04 Workflows repeatable systems you use more than once 05 Prompts useful prompts for Claude, Codex, ChatGPT, NotebookLM, etc. 06 Mistakes things that went wrong and what to avoid next time 07 Decisions why you chose something, what tradeoff you accepted 08 People / Companies people, creators, startups, companies, clients, competitors 09 Writing / Voice your style, hooks, phrases, posts you like, things that feel fake 10 Archive old notes that are not active but may still be useful later ``` you don't need to build a museum, just build a memory system ## 4. Every note needs a reason this is the part most people skip a note should not only say what happened it should say why it matters use this simple format: ``` What is this? Why does it matter? Where can I use it? What does it connect to? What question does it create? ``` example: ``` Topic: AI agents What is this? AI systems that can move tasks forward, not just answer questions. Why does it matter? Because boring repeated workflows are where agents become useful first. Where can I use it? Content research, lead research, code review, file organization, weekly reports. What does it connect to? [[AI workflows]] [[Boring work]] [[Automation]] [[Claude]] [[Codex]] Question: What tasks do I repeat every week that an agent could handle? ``` this makes the note useful later, not just saved ## 5. Why AI changes the second brain before AI your second brain was mostly for you now it can become context for AI that changes everything because AI is usually weak when it has: - no memory - no examples - no taste - no constraints - no history - no idea what you care about that is why generic AI output feels empty, it doesn't know your patterns, it doesn't know your taste, it doesn't know what you tried before, it doesn't know what sounds fake to you but when AI can read your vault, it can help with: - finding repeated patterns - summarizing what you already think - connecting old ideas - turning notes into plans - finding contradictions - improving decisions - creating better prompts - continuing projects without starting from zero this is where Obsidian becomes way more powerful, not because it stores notes, but because it gives AI memory ## 6. What to ask Claude once your vault has enough useful notes, you can start asking better questions not random prompts, context prompts use prompts like this: ``` Read my vault and find the 10 ideas I keep repeating. Explain what they reveal about my thinking. --- Find contradictions in my notes. Where do I say one thing but act like another thing? --- Look at my project notes. Tell me what I should do next based on what I already wrote. --- Take this messy note and turn it into: - clear idea - action steps - related notes - questions to answer next --- Find everything in my vault related to [topic]. Summarize what I already know. Then tell me what is missing. ``` this is the real value AI becomes better when it can see the system behind your thinking ## 7. The weekly workflow you do not need to live inside Obsidian all day just run a simple loop once a week: ``` 1. dump new ideas into Inbox 2. move useful notes into folders 3. link notes that are obviously related 4. ask AI to find repeated patterns 5. turn the best patterns into projects / decisions / prompts 6. delete or archive useless noise ``` that's enough, the point isn't to organize perfectly, the point is to reduce friction, if your vault makes it easier to think, it is working if it only makes you feel organized, it is probably just decoration ## 8. What makes this better than random AI chats random AI chats reset too much every new chat usually needs the same context again: - who you are - what you are building - what style you like - what you hate - what you already tried - what your goals are - what constraints matter that's context waste, a second brain fixes this instead of explaining yourself every time, you build a memory layer AI stops being only a chatbot, it becomes something closer to an assistant that can understand your history not perfectly, but enough to make the work feel less random ## 9. What this can become over time after a while, your Obsidian vault can show you things you would normally miss like: - topics you keep returning to - ideas you almost built but forgot - mistakes that repeat - workflows that should be automated - questions you still have not answered - projects that connect to each other - content ideas hidden inside old notes - business ideas hidden inside research - personal rules you keep learning the hard way this is why the second brain idea actually matters not because notes are cool, but because memory is leverage the more useful context you store, the easier it becomes to think, build, write, decide, and use AI properly I tried to put everything important here about building a second brain in Obsidian if this was useful, save it for later -- By Pengu ![Image](/doc/2409/image/img_47136c19b2ab.jpg) ## 相关链接 - [Penguin](https://x.com/PenguinWeb3) - [@PenguinWeb3](https://x.com/PenguinWeb3) - [37K](https://x.com/PenguinWeb3/status/2061784475718090930/analytics) - [Upgrade to Premium](https://x.com/i/premium_sign_up) - [8:18 PM · Jun 2, 2026](https://x.com/PenguinWeb3/status/2061784475718090930) - [37.1K Views](https://x.com/PenguinWeb3/status/2061784475718090930/analytics) - [View quotes](https://x.com/PenguinWeb3/status/2061784475718090930/quotes) --- *导出时间: 2026/6/3 09:34:01* --- ## 中文翻译 # 在AI能读懂其中的模式之前，你的第二大脑毫无用处 **作者**: Penguin **日期**: 2026-06-02T12:18:19.000Z **来源**: [https://x.com/PenguinWeb3/status/2061784475718090930](https://x.com/PenguinWeb3/status/2061784475718090930) --- ![Image](/doc/2409/image/img_820b95e1c558.jpg) ## 如何在 Obsidian 中构建一个 AI 就绪的第二大脑大多数人把 Obsidian 当作一个更好看的笔记应用来用，他们保存： - 随机的想法 - 有用的推文串 - 文章 - 视频 - 提示词 - 项目笔记 - 未完成的思考然后忘记其中 80% 的内容的存在，但这并不是 Obsidian 的问题问题在于他们的第二大脑仅仅是存储一个真正的第二大脑应该帮助你： - 记住、连接、决定以及重用你自己的思考而 AI 让这一点变得更加重要因为当 Codex 能看到你实际的上下文时，它们会变得更强不仅仅是一个提示词，而是你的模式 ## 1. 为什么大多数第二大脑都会失败大多数第二大脑失败是因为人们把它们当作图书馆他们专注于： - 完美的文件夹 - 标签 - 仪表盘 - 模板 - 关系图谱 - 美观的系统但如果笔记不能帮助你更好地思考，这些都不重要第二大脑之所以有用，不是因为它存储了更多信息当它能回答如下问题时，它才变得有用： - 我一直在思考什么？ - 我重复犯了哪些错误？ - 哪些想法是相互关联的？ - 关于这个话题我已经知道了什么？ - 我下一步该做什么？ - 我以前尝试过什么？这就是笔记应用和思维系统的区别 ## 2. 你的第二大脑实际上应该存储什么不要只保存信息，要保存完整的上下文你的知识库应该包括： - 想法 - 观察 - 决策 - 错误 - 项目 - 提示词 - 工作流 - 你喜欢的文章 - 你喜欢的帖子 - 个人原则 - 感觉虚假的东西 - 有用的例子 - 重复的模式目标不是收集所有东西，你的目标是构建一个理解你如何思考的系统因为 AI 的提升不仅靠更多的信息，更靠更好的上下文 ## 3. 简单的文件夹结构你不需要复杂的文件夹树，从简单开始示例： ``` 00 收件箱 01 想法 02 项目 03 研究 04 工作流 05 提示词 06 错误 07 决策 08 人物 / 公司 09 写作 / 语调 10 归档 ``` 每个文件夹的作用： ``` 00 收件箱快速放置任何你不想丢失的东西 01 想法原始想法、文章点子、商业点子、随机观察 02 项目你正在构建、测试、撰写或计划的东西 03 研究文章、视频、工具、案例、市场研究 04 工作流你使用超过一次的可重复系统 05 提示词用于 Claude、Codex、ChatGPT、NotebookLM 等的有用提示词 06 错误出了什么问题以及下次要避免什么 07 决策你为什么选择某事，你接受了什么权衡 08 人物 / 公司人物、创作者、初创公司、公司、客户、竞争对手 09 写作 / 语调你的风格、钩子、短语、你喜欢的帖子、感觉虚假的东西 10 归档不再活跃但以后可能仍有用的旧笔记 ``` 你不需要建造一个博物馆，只需建立一个记忆系统 ## 4. 每条笔记都需要一个理由这是大多数人跳过的部分一条笔记不应该只说发生了什么它应该说为什么这很重要使用这个简单的格式： ``` 这是什么？为什么它很重要？我可以在哪里使用它？它连接到什么？它引发了什么问题？ ``` 示例： ``` 主题：AI 代理这是什么？能够推进任务的 AI 系统，而不仅仅是回答问题。为什么它很重要？因为无聊的重复性工作流程是代理首先变得有用的地方。我可以在哪里使用它？内容研究、线索研究、代码审查、文件整理、周报。它连接到什么？ [[AI 工作流]] [[无聊的工作]] [[自动化]] [[Claude]] [[Codex]] 问题：我每周重复哪些任务可以由代理处理？ ``` 这使得笔记在以后变得有用，而不仅仅是被保存 ## 5. 为什么 AI 改变了第二大脑在 AI 之前，你的第二大脑主要是为你自己准备的现在它可以成为 AI 的上下文这改变了一切因为 AI 在拥有以下条件时通常很弱： - 没有记忆 - 没有例子 - 没有品味 - 没有约束 - 没有历史 - 不知道你关心什么这就是为什么通用的 AI 输出感觉空洞，它不知道你的模式，它不知道你的品味，它不知道你以前尝试过什么，它不知道什么对你来说听起来很假但是当 AI 可以读取你的知识库时，它可以帮助： - 发现重复的模式 - 总结你已经在思考的内容 - 连接旧的想法 - 将笔记转化为计划 - 发现矛盾 - 改进决策 - 创建更好的提示词 - 从零开始继续推进项目这就是 Obsidian 变得强大得多的地方，不是因为它存储笔记，而是因为它赋予 AI 记忆 ## 6. 该问 Claude 什么一旦你的知识库有足够有用的笔记，你就可以开始问更好的问题不是随机的提示词，而是上下文提示词使用像这样的提示词： ``` 阅读我的知识库，找出我不断重复的 10 个想法。解释它们揭示了关于我思维的什么信息。 --- 在我的笔记中找出矛盾。我在哪里说一套但做的却是另一套？ --- 看看我的项目笔记。根据我已经写的内容，告诉我下一步该做什么。 --- 拿这条混乱的笔记，把它变成： - 清晰的想法 - 行动步骤 - 相关笔记 - 下一步要回答的问题 --- 在我的知识库中找出与 [主题] 相关的所有内容。总结我已经知道的内容。然后告诉我缺少了什么。 ``` 这才是真正的价值当 AI 能看到你思维背后的系统时，它会变得更好 ## 7. 每周工作流你不需要整天都待在 Obsidian 里只需运行一个简单的循环每周一次： ``` 1. 将新想法倾倒到收件箱 2. 将有用的笔记移动到文件夹 3. 链接明显相关的笔记 4. 让 AI 寻找重复的模式 5. 将最好的模式转化为项目 / 决策 / 提示词 6. 删除或归档无用的噪音 ``` 这就足够了，重点不是完美地组织，重点是减少摩擦，如果你的知识库让思考变得更容易，它就是有效的如果它只让你感觉井井有条，那它可能只是装饰品 ## 8. 为什么这比随机的 AI 聊天更好随机的 AI 聊天重置得太频繁每次新的聊天通常都需要再次提供相同的上下文： - 你是谁 - 你在构建什么 - 你喜欢什么风格 - 你讨厌什么 - 你已经尝试过什么 - 你的目标是什么 - 什么约束很重要这就是上下文的浪费，第二大脑解决了这个问题你不再每次都解释自己，而是构建一个记忆层 AI 不仅仅是一个聊天机器人，它变成了某种更接近助手的东西，可以理解你的历史不完美，但足以让工作感觉不那么随机 ## 9. 随着时间的推移，这能变成什么过了一段时间，你的 Obsidian 知识库可以向你展示你通常会错过的东西比如： - 你不断回到的话题 - 你差点构建但忘记了的想法 - 重复的错误 - 应该自动化的工作流 - 你仍未回答的问题 - 相互连接的项目 - 隐藏在旧笔记中的内容想法 - 隐藏在研究中的商业想法 - 你不断通过惨痛教训学到的人生原则这就是为什么第二大脑这个概念实际上很重要不是因为笔记很酷，而是因为记忆是一种杠杆你存储的有用上下文越多，思考、构建、写作、决策以及正确使用 AI 就变得越容易我试图把关于在 Obsidian 中构建第二大脑的所有重要内容都放在这里如果这很有用，请保存以备后用 -- By Pengu ![Image](/doc/2409/image/img_47136c19b2ab.jpg) ## 相关链接 - [Penguin](https://x.com/PenguinWeb3) - [@PenguinWeb3](https://x.com/PenguinWeb3) - [37K](https://x.com/PenguinWeb3/status/2061784475718090930/analytics) - [升级至 Premium](https://x.com/i/premium_sign_up) - [2026年6月2日下午8:18](https://x.com/PenguinWeb3/status/2061784475718090930) - [37.1K 观看](https://x.com/PenguinWeb3/status/2061784475718090930/analytics) - [查看引用](https://x.com/PenguinWeb3/status/2061784475718090930/quotes) --- *导出时间: 2026/6/3 09:34:01*

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