Hi, I amXiaochang。
AI Second Brain & Knowledge Management Teacher
Teaching you to use AI Agents to turn knowledge into assets, letting your experience compound.
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Already 2,600+ subscribers • 2–4 emails per month, sharing what I’m actually doing • Unsubscribe anytime
I canhelp you?
What you need isn't the answer, but someone to help you find the method.
People who have taken the coursesay this。
Excerpted from course feedback written by a student.






I fed AI 800 documents,
but not a single one became yours.。
When I was thirty, I hadn't finished a single book. The change wasn't that I became more disciplined; it was that I finally found a way to let knowledge connect itself.
So I broke it down into three brains:Native BrainThink clearly,Knowledge Basestored beautifully,AI Brainand used effectively. Right now, my whiteboard has over 3,000 cards, and they keep generating new insights for me.
First BrainNative Brain
Second BrainKnowledge Base
Third BrainAI Brain
My Second Brain

One tutorial email per day, 10 minutes a day. Follow along for 7 days, and the foundation of your Second Brain will grow. No prior experience required.
- 1Navigation Map
- 2Dream Board
- 3Inspiration Pack
- 4Gratitude Journal
- 5Organizational Chart
- 6Reading Notes
- 7AI Summary
Turn everything you've learned, thought about, and lived through,
intoyour creations。
This is what 《AI Brain Upgrade 321》 is about: thinking clearly with your native brain, organizing your knowledge base beautifully, and leveraging your AI brain effectively.
AI can gather the flowers,but only you can make the honey.
To know me better,start witha letter.
writing about what I’m actually doing and the pitfalls I’ve actually stepped into,You can unsubscribe anytime.
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Already 2,600+ subscribers • Unsubscribe anytime

