The blockchain net they were talking about exists https://zeronet.io/
> ZeroNet is a decentralized web-like network of peer-to-peer users, created by Tamas Kocsis in 2015. Programming for the network is based in Budapest, Hungary; is built in Python; and is fully open source.[2] Instead of having an IP address, sites are identified by a public key (specifically a bitcoin address). The private key allows the owner of a site to sign and publish changes, which propagate through the network. Sites can be accessed through an ordinary web browser when using the ZeroNet application, which acts as a local webhost for such pages.[2] In addition to using bitcoin cryptography, ZeroNet uses trackers from the BitTorrent network[3] to negotiate connections between peers.[2] ZeroNet is not anonymous by default, but it supports routing traffic through the Tor network.[4]