User blog comment:CatIsFluffy/Introduction to OCFs/@comment-2001:56A:71A8:5F00:40EC:6944:62F7:8605-20180211045214/@comment-2001:56A:71A8:5F00:3C42:C81C:2F0E:A1A0-20180218231233

Wait a minute... those three versions of Xi are different? I thought they were the same function... Maybe that's why I'm confused.

Recently I found this blog post (http://googology.wikia.com/wiki/User_blog:Deedlit11/Ordinal_Notations_VI:_Up_to_a_weakly_compact_cardinal) and there was a comment from Deedlit that explained the Xi function pretty nicely in my opinion.