Vannevar Bush & the Memex

Vannevar Bush was the originator of the Memex concept, introduced in 1945. The Memex was a vision of a personal, curated knowledge store in which documents were connected by *associative trails* — links between items that reflected how a human mind naturally moves from one idea to another. In Bush's model, the links between documents were considered as valuable as the documents themselves.

Source [llm-wiki.en.md]

• A personal knowledge base, privately owned and actively curated by its user.
• Navigation driven by associative trails rather than hierarchical catalogues.
• The structure of connections was treated as a first-class artifact — not an afterthought.

Bush's vision had one critical gap: who does the maintenance? Building and continuously updating associative trails across a growing body of documents requires enormous, sustained effort from a human curator. Bush had no answer to this.

Andrej Karpathy explicitly framed the LLM Wiki pattern as spiritually close to the Memex. The LLM solves precisely the problem Bush could never resolve:

*"It never gets bored, never forgets to update a cross-reference, and can touch a dozen pages in a single pass."* [llm-wiki.en.md]

In the LLM Wiki pattern, the large language model acts as the tireless curator — writing cross-references, surfacing contradictions, and keeping the associative structure consistent — while the human focuses on curating sources and asking questions. Tools like Obsidian make the resulting graph of wikilinks visually navigable, echoing Bush's vision of traversable associative trails.

Unlike RAG, which re-derives answers from raw chunks at query time, the LLM Wiki compiles a persistent, interlinked structure — far closer to Bush's original vision of knowledge that *accumulates* rather than knowledge that is *retrieved on demand*. See LLM Wiki vs. RAG for a detailed comparison.

Managed services such as Cairni extend this pattern further, adding team workspaces, version history, and public publishing on top of the same compiled-wiki foundation. [llm-wiki.en.md]