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Context (I was hoping that cheese_grater was talking about what I thought he was WRT "memex", and apparently so):
https://en.wikipedia.org/wiki/Memex
A memex (a portmanteau of "memory" and "index") is a hypothetical electromechanical device for interacting with microform documents and described in Vannevar Bush's 1945 article "As We May Think". Bush envisioned the memex as a device in which individuals would compress and store all of their books, records, and communications, "mechanized so that it may be consulted with exceeding speed and flexibility". The individual was supposed to use the memex as an automatic personal filing system, making the memex "an enlarged intimate supplement to his memory".[1]
The concept of the memex influenced the development of early hypertext systems and personal knowledge base software.[2] The hypothetical implementation depicted by Bush for the purpose of concrete illustration was based upon a document bookmark list of static microfilm pages and lacked a true hypertext system, where parts of pages would have internal structure beyond the common textual format.
https://en.wikipedia.org/wiki/Palant%C3%ADr
A palantír ([paˈlanˌtiːr]; in-universe pl. palantíri) is one of several indestructible crystal balls from J. R. R. Tolkien's epic-fantasy novel The Lord of the Rings. The word comes from Quenya palan 'far', and tir 'watch over'.[T 1] The stones were used for communication and to see events in other parts of Arda, or in the past.