Because... I relate so pertinently to this quote, my favourite quote by Kurt Vonnegut:

"I want to stand as close to the edge as I can without going over. Out on the edge you see all the kinds of things you can’t see from the center."

And this one by fellow sx/so Henry Rollins: .

"I want a soulmate who can sit me down, shut me up, tell me ten things I don't already know, and make me laugh. I don't care what you look like, just turn me on. And if you can do that, I will follow you on bloody stumps through the snow. I will nibble your mukluks with my own teeth. I will do your windows. I will care about your feelings. Just have something in there!"

An sx can recognize another sx easily. It's all about intensity.