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Speculum Maius

Vincent of Beauvais's 1255 encyclopedia attempting to compile all human knowledge into a single work — 4.5 million words across eighty books, and the founding monument of encyclopedic ambition defeated by abundance.
The Speculum Maius ("Greater Mirror"), completed in 1255 by the Dominican friar Vincent of Beauvais, was a thirteenth-century encyclopedia attempting to compile all human knowledge into a single work. It ran to roughly 4.5 million words across eighty books, divided into three parts covering natural, doctrinal, and historical knowledge. (A fourth part on morality was added posthumously.) Vincent's preface is one of the earliest surviving documents of encyclopedic resignation: he apologized not for the length but for the incompleteness, describing himself as overwhelmed by the multitude of books, the shortness of time, and the slipperiness of memory. He offered the encyclopedia not as a definitive statement but as a navigational aid — a device for finding one's way through a forest of knowledge that had become too dense for any single mind to traverse.
Speculum Maius
Speculum Maius

In The You On AI Field Guide

Vincent's preface provides crucial evidence for Blair's claim that information overload predates the printing press by centuries. The Speculum

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