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AI for Everyone

Memex

Proper name

A diagram of an associative trail. Arrows link a book, a note, a letter and a second book, in that order, and a comment is attached to the note. A sentence below the diagram says that the whole trail can be passed on to someone else.
The memex was meant to let users chain documents together and add their own comments.Diagram: AI for Everyone

The memex is a device that Vannevar Bush described in his 1945 essay “As We May Think”. It was meant to look like a desk and to store its user’s books, records and correspondence on microfilm. It was never built.

Bush’s most important idea was the associative trail. Users would chain documents together, add their own comments and pass these trails on to other people. Links between notes work in a similar way today.

In my articles

In my second brain series, the story of machines that support memory starts with the memex. Bush saw it as a personal extension of memory, but the job of keeping the documents in order still fell to its user.

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