As a wordplay enthusiast, I was excited to hear about an old book called Ars Magna by Ramon Llull that tried to find new occult truths by re-arranging letters. The letters of "Ars Magna", after all, can be re-arranged to form the word "anagrams" (defined as words/phrases that are letter-wise re-arrangements of other words/phrases). But it turns out that Llull's letter-rearrangements weren't anagram-ish. Rather, he had some concentric wheels with letters on them that he rotated in hopes that the resulting combinations would inspire, uhm, new concepts or something.