>>6961

"...

It can be seen in Robert Anton Wilson and Robert Shea's The Illuminatus! Trilogy (therein called the "23/17 phenomenon"), Wilson's Cosmic Trigger I: The Final Secret of the Illuminati (therein called "The Law of fives" and "The 23 Enigma"), Arthur Koestler's Challenge of Chance, as well as the Principia Discordia. In these works, 23 is considered lucky, unlucky, sinister, strange, or sacred to the goddess Eris or to the unholy gods of the Cthulhu Mythos.

..."

>https://www.crystalinks.com/23enigma.html