"for such an expensive proposition" We need something cheaper than what we have now. People gravitate to walled gardens like Facebook because setting up their

"for such an expensive proposition" We need something cheaper than what we have now. People gravitate to walled gardens like Facebook because setting up their own systems is too expensive. "No doubt there's some unnecessary complexity in there" At no point did I mention the unnecessary complexity of IP/TCP/UDP, I'm not sure where you got that. I'm only talking about the necessary complexity. It's a great protocol that enables the modern Web. But it is complex enough that there is some expense to setting everything up, and that is why humanity ends up in walled gardens like Facebook. If you want to destroy the walled gardens, then you will need a simpler, cheaper protocol.