Skip to content

Vannevar Bush

Summary

Vannevar Bush (1890–1974) was an American engineer and science administrator who, in his 1945 essay "As We May Think," described the Memex — a theoretical personal knowledge machine that stored documents and allowed users to create "associative trails" linking related materials. The Memex is cited by entities/andrej-karpathy as the closest historical antecedent to the LLM knowledge base pattern: private, actively curated, with the connections between documents as valuable as the documents themselves.

Details

The Memex (1945)

Described in "As We May Think" (The Atlantic, July 1945), the Memex was a hypothetical desk-sized device that would: - Store all of a person's books, records, and communications on microfilm - Allow rapid retrieval by associative indexing (not hierarchical filing) - Let users create and follow "associative trails" — named sequences of linked documents they could share with others

Bush's insight was that human memory works by association, not by rigid categories — and that a knowledge tool should reflect this. The trails between documents were as valuable as the documents themselves.

Why the Memex Didn't Happen (in Bush's Form)

The Memex was mechanically infeasible in 1945. The web emerged as the hyperlink-based successor, but diverged from Bush's vision: the web is public, not private; its links are one-directional; and no one maintains its associative structure — it grows by accretion, not curation.

The part Bush couldn't solve: who does the maintenance? Building and maintaining a personal, curated knowledge store with rich associations requires constant bookkeeping that humans abandon. The LLM handles that.

Key Claims & Data Points

  • "As We May Think" published July 1945, The Atlantic — [source: llm-wiki-karpathy.md]
  • Karpathy: "Bush's vision was closer to this [LLM wiki] than to what the web became" — [source: llm-wiki-karpathy.md]

Sources