I don't know that there's anything special about Russell's paradox in particular, to be honest. It has obvious historical importance, obviously, but I doubt tha

I don't know that there's anything special about Russell's paradox in particular, to be honest. It has obvious historical importance, obviously, but I doubt that's what you're looking for. There's something a bit remarkable about how trivial it is, I suppose. Booleans are very simple types, if you'll give me those, and then Not is the only involution!