For ambitious professionals and lifelong learners
Never Lose Track of What You Learn
The Notion system that helps you capture, organize, and apply your knowledge.
⭐️⭐️⭐️⭐️⭐️
4.9/5 stars from over 10,000 happy customers
Are you wasting your time learning?
We’ve always been obsessed with learning — reading hundreds of books, diving into research, and filling notebooks with ideas. But most of it never got used. Weeks later, we couldn’t find the key takeaways, and the knowledge we worked so hard to collect just faded away.
School taught us how to memorize, but not how to actually use what we learn. That’s why so many smart, hardworking people still end up with a head full of ideas but no way to turn them into opportunities.
We wanted to fix that. We tried everything — journaling apps, complicated note-taking systems, even building our own tools. Nothing stuck.
Then we studied how the brain really learns — and everything clicked. From that, we built a learning system in Notion that finally worked.
The Extended Brain is simple enough to use every day, yet powerful enough to turn your learning into action. Instead of wasting time piecing together your own, you can plug into the version we’ve already tested and proven. Now your knowledge can finally compound into something greater.
One system for your entire brain
Stop juggling 10 different apps and drowning in scattered notes. The Extended Brain organizes your research, books, and projects in one place — so you can actually apply your knowledge.
Set up in minutes, not months
Get guided tutorials, proven workflows, and a supportive community. Avoid the tech headaches. Spend less time tinkering and more time doing meaningful work.
Adapts to every season of your life
Whether you’re a student, creator, or entrepreneur, Extended Brain snaps together like Lego pieces. Mix and match layouts — so the same system grows with you, instead of breaking every time your goals change.
Simple enough for beginners, powerful enough for pros
Choose your mode — Easy, Essential, or Extended. Start small, scale up when you’re ready — so you never feel overwhelmed, but always have room to grow.
What is your knowledge worth?
The real value of the Extended Brain isn’t just organized notes — it’s what happens next. When every idea has a home, your knowledge compounds instead of fading away. You gain clarity in your thinking, confidence in your expertise, and the ability to act on what you’ve learned.
That shift changed everything for us. Our knowledge became the foundation for our content creation and 7-figure business. These gave us the freedom to quit our jobs as doctors and work for ourselves.
And that same transformation is possible for you. With the Extended Brain, you’re not just collecting information — you’re building a growing asset that creates opportunities and pays dividends for the rest of your life.
Built by Creators Who Have Actually Done It
We’re Mike & Matty — two brothers who went from medical doctors to full-time creators. We have lived the pain, and built systems that turned our knowledge into freedom. We are:
👨⚕️ Trained medical doctors who know what it means to master complex knowledge.
▶️ Learning & productivity coaches with 1M+ YouTube subscribers.
🚀 7-figure entrepreneurs who turned knowledge into income.
🎖 Notion Certified creators with 170,000+ templates downloaded.
🏆 Ranked Top 10 best-selling Notion template builders.
Who better to design your operating system than two brothers obsessed with learning and systems? You can skip years of trial and error and just steal our frameworks that already work.
Wall of Love
Extended Brain
$149 $99
(save $50)
✔ Full Extended Brain Notion Template
✔ Quickstart Videos to setup in minutes
✔ Access to Private Community for Support
👉 Best for beginners who want to capture and organize knowledge fast.
Creator Company OS
$349 $249
(save $100)
✔ Full Creator Company Operating System
✔ Deep integration with Extended Brain Notion Template
👉 Best for creators ready to grow and build a system that generates income.
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Frequently asked questions
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A Notion template is a ready-made layout that you can duplicate in your workspace. Think of it as a starting point or save file that has pre-filled pages and folders for you to start using immediately.
Extended Brain is designed to “plug-and-play” even if you aren’t familiar with Notion or productivity systems. This way, you do not have to start from scratch.
After purchase, you will receive a link to duplicate our template into your Notion account (along with detailed instructions).
We have spent years perfecting our proven layouts and systems into an easy to use template, to save you time and stress. No need for you to learn how to design and code. Just focus on what matters most. -
Let’s be clear. Extended Brain is much more than just a Notion Template. You're buying a comprehensive package that includes the template, a detailed guide for implementing powerful workflows, and a motivated learning community. Extended Brain isn’t just a digital tool, but a foundation to improve your focus, build better habits, and create a life you love.
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Extended Brain was made for learning and knowledge workers:
• students in school
• taking online courses
• creators
• writers
• entrepreneurs
• business owners
• managers
• coaches
• consultants
If you’re a life-long learner, then this was made for you.
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Absolutely, our template works with Notion’s free plan.
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We have a 30-Day money back guarantee. Send us an email at support@cajunkoi.com.
We’ve only had a handful of refunds out of thousands of customers. If you’re not happy, we’re not happy. -
No prior knowledge is required. Of course, having prior knowledge in Notion will be helpful, but the guided tutorials and support will allow you to get the most out of the Extended Brain, regardless of your starting point.
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Yes! You gain access to exclusive channels in our Circle community with access to documentation, detailed tutorials, and support.
You can mingle, share workflows, and even meet your future productivity partners and mentors 😉