I'm not entirely sure why this comment gets downvoted, because it's spot on. QC is impractical for any real-world network, and the idea that it could ever play

I'm not entirely sure why this comment gets downvoted, because it's spot on. QC is impractical for any real-world network, and the idea that it could ever play a role in the real-world Internet is just fantasy. But also we don't need to. Cryptography without quantum is just fine.