I think nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s explained perfectly how Nostr will grow in the future.

"There have been many Nostr waves, and the better UI we create, the more people will stay here after each wave."

I think this is it; we just have to keep improving Nostr without worrying about anything else.