It can become the backbone or foundation of an entire new internet.
IP addresses and domain names can be replaced with npubs and blockchain-based usernames (that's a way blockchains might end up being intertwined)
Internet service providers can be replaced by mesh networks, nostr keys could be integrated there
Blockchain tech isn't fundamentally tied to nostr though, there could be lots of nostr use cases / nostr users who don't use any of the blockchain related stuff
