For a purely "consumer" internet, yes. But I'd like to think that at some point we move back to a more decentralised model, where addressibility in more context

For a purely "consumer" internet, yes. But I'd like to think that at some point we move back to a more decentralised model, where addressibility in more contexts than a response to a request become important again. To some degree the NAT issues have even killed a lot of this, making P2P more difficult and unreliable than would be otherwise.