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What actually makes Obsidian a second brain?

This story is from 2026-09-03. It is preserved in the archive; the latest stories are on the live feed.

At the end of the day, isn’t Obsidian basically just a graph of linked Markdown files? If AI agents can read/write Markdown, create links, search semantically, and maintain context automatically, what does Obsidian itself add? Is the real value the graph + UI, or is there something deeper about how…

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  1. 2026-09-03 14:24 · r/AI_Agents
    What actually makes Obsidian a second brain?

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