Nostr is pure wizardry. I broadcast a note to a relay on my phone (aegis) and to nostr.land. So only 2 relays. That note can be found on 47 different relays thanks to the blastr feature of nostr:npub1gt9gms5hr3l6548zxgn7xvcvcmzxyzgdsrrelrdwxwmj0exz7jaqdjlxjt