This guy spent 4 years building his Obsidian vault... and the biggest lesson wasn't taking more notes. It was building a system he actually opens every day. "4 years using Obsidian and what I use every day." Most people treat Obsidian like a digital filing cabinet. He turned it into an operating system The biggest takeaway: Your second brain shouldn't just store information. It should actively help you think, retrieve, prioritize, and improve your work every single day. If your notes aren't changing how you work, they're just digital clutter. Watch the full video for a complete walkthrough of his 2026 Obsidian setup and then read the article below. Follow @damidefi for more AI alpha, practical workflows, and cutting-edge productivity systems before everyone else catches on.