A summary: it's a successfully failed idea we can reach a day something like semantic search thanks to carefully written metadata, or we can classify anything t

A summary: it's a successfully failed idea we can reach a day something like semantic search thanks to carefully written metadata, or we can classify anything to make anything easy to retrieve as a single information atom (a book, a report, a map) or even inside it finding just the bit of information we look for not in a single atom but across many. Another Library of Babels/Biblioteca universalis by Conrad Gessner (~1545). Unfortunately while in theory the system could work we can't ensure anyone use is WELL in practice and just some metadata to classify anything in a coherent way it's far from being enough. DC was an immense diplomatic effort in library science still with a damn limited practical outcome.