In regard to viruses and the content distribution layer: using a blockchain to cryptographically secure essential aspects of information technology is the future. It is counter-intuitive to the way cyber-security exists today. The ground up approach, not so much to security, but to peer-to-peer networking eliminates the conventional methods of a virus attack. Peer-to-peer networks are more like a series of firm handshakes than the grouping of pigs eating out of a Facebook, Google, or Amazon trough that we have today. I have even read about a security specialist stating outright that decentralized cryptographic digital ledgers will put hackers out of business.