Do You Need Other People to Be the Overman?

For nita to become the overman, do you need other people at all? Or is it fundamentally an individual thing? And i had guessed in the whole story of here is, you know, he's by himself in his cave. So there are stages of self overcoming that you can do by yourself. You aren't a full human being unless you're doing that. All too many are born for the superfluous. The state was invented.