The concept of immutable assets and links is at the core of IPFS, a distributed alternative to HTTP. Since Firefox inplements the concept of immutable assets now, it would be totally reasonable to load these assets in the browser peer to peer (see WebRTC and webtorrent). I think this would be a great way to retrofit some decentralization into webpages!
I'm not sure it would be reasonable. To do that without deanonymising people would be an awful lot of work, and at the end if it lead to faster results, that would seem to be ripe for timing attacks to I.e. Figure out if anyone is browsing stonewall.org on your LAN
You could have a fast lane direct from the (http) server, then a slow P2P lane over Tor, both using the same content addressed protocol, and caching the results locally for instant reloads.
