https://www.lesswrong.com/posts/jMTbQj9XB5ah2maup/similarity-clusters
https://www.lesswrong.com/posts/cFzC996D7Jjds3vS9/arguing-by-definition
-
+https://www.lesswrong.com/posts/mB95aqTSJLNR9YyjH/message-length
https://www.lesswrong.com/posts/9QxnfMYccz9QRgZ5z/the-costly-coordination-mechanism-of-common-knowledge