Gordon Lennox wrote on 26/01/2018 14:16:
“The answer to your question is yes,” says David Conrad, chief technology officer for ICANN. The Internet’s protocols are openly available and, because it’s a network of interconnected networks, it’s entirely possible to recreate a different network of interconnected networks, he says.
I think "entirely" is a bit strong. It is technically possible. Like it
is technically possible to have fully IPv6-based Internet, secure DNS
and routing. The challenge goes beyond technical possibility. Unless one
creates an "enterprise" network in a country. But that brings other
challenges.