> what kind of p2p protocols are you thinking of ?
Skype was originally P2P, but because of NAT there had to exist "supernodes" which did STUN/TURN/ICE shenanigans to make it work (which caused scaling issues since there weren't enough of them):
file sharing, messaging, gaming, VOIP/VideoOIP, etc. basically everything we have today that has to route through a gateway in the cloud could be p2p . They actually all were int he 90s (e..g Napster, Limewire, ICQ) until vulnerabilities drove investment in aggressive firewall
