A personal reflection on deleting 10,000 notes and 7 years of accumulated knowledge from personal knowledge management systems like Obsidian. The author argues that PKM tools can become digital hoarding systems that replace actual thinking with filing, leading to cognitive overload rather than clarity. After achieving sobriety, they realized their extensive note-taking archive had become a burden rather than a tool, prompting them to delete everything and adopt a minimalist approach focused on living knowledge rather than storing it.