Came here to add a comment about this as well. Got pointed in its direction by a Terry Pratchett essay, fantastically interesting. He said something along the l

Came here to add a comment about this as well. Got pointed in its direction by a Terry Pratchett essay, fantastically interesting. He said something along the lines of "it's not the dictionary you pull out to find a specific fact, but the one you pull out to learn something you didn't realize you were interested in," IIRC.