I seem to recall legal commentators reacting with an eyeroll—apparently judges split much finer hairs than these for a living—but it was a cute stunt.
[1] https://m.youtube.com/watch?v=sJtm0MoOgiU and https://www.the-independent.com/tech/music-copyright-algorit...
Which is not to say let’s not do it anyway and see!
Against the claim that this wouldn't be searchable, we can just observe that this is about the size of the US patent database. Does this mean patents are not searchable? In that case, aren't all patent infringements excused?
Otherwise someone could copyright every combination of words.
My point was that it’s hard to imagine citing something that could not be patented as prior art. It would be like citing a phone book as proof that a software program can’t be copyrighted (“the exact bytes appear in the 1973 Albany NY white pages, therefore it wasn’t original”)
There is no need for it to be patentable (or patented). Prior art only requires that it be described and be made publicly available. It doesn't even require the originator of the information to be identified (traditional knowledge is prior art.)