OBSIDIAN + CLAUDE CODE >>>>>> NOTION. Not a hot take. A structural argument. Notion stores your work. Obsidian owns it. Every note is a plain text file sitting on your hard drive — not in someone else's database, not locked behind a subscription, not one API change away from becoming inaccessible. Claude Code reads those files directly. No integration. No plugin that breaks on the next update. No export-import cycle every time you want AI to touch your notes. It opens the folder. Reads what's there. Writes back into it. The vault is just a directory — which means Claude Code treats it like code. Notion was built for teams sharing information. Obsidian + Claude Code is built for one person compounding knowledge. Those are different problems with different right answers. A Notion page doesn't know what's in the other Notion pages unless you tell it. An Obsidian vault where every note links to every related note — and Claude Code reads the whole graph before doing anything — that's a system that thinks. Notion is a tool. This is infrastructure.