Looking up one of the phrases from Langdon's statistical report ("Four Sigma Members") led me briefly to the rabbit hole of high-IQ societies, of which there se

Looking up one of the phrases from Langdon's statistical report ("Four Sigma Members") led me briefly to the rabbit hole of high-IQ societies, of which there seem to be many. Neat little interview here with Ronald Hoeflin, who habitually organizes high-IQ societies: https://in-sightpublishing.com/2022/02/28/an-interview-with-dr-ronald-k-hoeflin-on-high-iq-societies-titles-rarities-and-purposes-and-personal-judgment-and-evaluations-of-them-part-two-by-scott-jacobsen/ https://in-sightpublishing.com/2022/02/28/an-interview-with-... Hope he is doing well. Sounds like he has spent a very long time working on an Encyclopedia of Categories ( https://www.usiassociation.org/post/encyclopedia-of-categories-volume-4 https://www.usiassociation.org/post/encyclopedia-of-categori... ).