Unlock Genius Ideas By Building Your Own Library Of AI Brains

By Dan Fitzpatrick

Unlock the power of AI by building your own library of “brains.” Discover how NotebookLM transforms scattered ideas into living, interactive knowledge.

If you’re not using AI tools like NotebookLM to capture knowledge fields and build out your own “brain,” you’re missing out in a big way.The idea of a “second brain” has inspired millions of people to capture their notes, bookmarks, and half-finished ideas in apps like Notion or Obsidian. But the problem is that most of us wear different hats, juggle multiple projects, and pull from wildly different sources of inspiration. One brain can quickly become a mess.So why stop at one? What I’ve discovered is far more powerful. An AI tool like NotebookLM lets me build many brains. Entire libraries of minds and themes that I can turn to whenever I need.Step 1: Pick Someone You AdmireHere’s how I do it. I start by choosing someone whose work I really admire. It could be an author, a podcaster, a teacher, or a thought leader in any field. Once I’ve picked my person, I go into collector mode.And I don’t mean casually. I obsess. I hunt down podcast transcripts, PDFs of their books (when they’re available), blog posts, interviews, and even old essays tucked away in corners of the internet. If they’ve produced it, I want it. I treat this like assembling raw material for a personal archive of their brain.Step 2: Re-Construct Their BrainThe next step is simple but game-changing: I upload everything into NotebookLM. The platform doesn’t just hold the documents, but it organizes them into something alive.That’s the key difference. NotebookLM allows me to talk with this body of work. I can ask questions, run ideas by it, and get responses that aren’t generic. They’re grounded in that person’s actual words and worldview. It’s like being able to sit down with them for a conversation, anytime I want.Step 3: Treat It Like a Personal CoachThis is where things get exciting. Imagine you’re a huge fan of an author. You’ve read their books, bookmarked their blog, and followed their videos. Normally, all that content just sits around. But with NotebookLM, you can digitize it, build a...