Uploaded March 2026 | Updated September 2026, 1 week ago

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🔗 Join the waitlist for Cohort 2 of the AI Second Brain: buildingasecondbrain.com/ai-second-brain

I've spent 1,200 days testing one question: what does building a Second Brain actually mean now that AI exists? In this video, I share four things I believe that most AI creators disagree with — including why autonomous agents are the wrong bet, and why your notes are more valuable now, not less.

📩 Read my blog post “Introducing The AI Second Brain”: fortelabs.com/blog/introducing-the-ai-second-brain

Resources:
Harvard Business School / Procter & Gamble AI study: papers.ssrn.com/sol3/papers.cfm?abstract_id=5188231&__cf_chl_tk=c1XEOteeyR6IGrMpAwryu8mTAw8Nl11nwGMxzGPXDz0-1774264146-1.0.1.1-2Az9F222lS0nrPxn5ruKtm4vD6Kr8hxqdm_broQodxo

CHAPTERS:
0:00 Why I stopped teaching for 1,200 days
0:29 The question I've been trying to answer
0:54 AI Agents
1:13 The cognitive exoskeleton
1:50 What happened on February 5
3:03 Contrarian Take #1
3:53 Contrarian Take #2
5:29 Contrarian Take #3
6:25 Contrarian Take #4
7:43 The AI Second Brain