When people fisrt started getting on the Internet back in the early 90's the most astonishing thing was that you could reach any server anywhere in the world for free. Free once you had got online that is.
How was it possible to talk to Australia for free when phoning there cost a fortune?
Not only that, how come the content was free too?
The next astonishing thing was that you could host a website and anyone in the world could look at it for free. You could pretty much say what you liked on the site and it was only discretion keeping you sensible.
Obviously the efficiency of HTML and TCP/IP compared to the vast bandwidth available meant it was probably not costing anything to use it in any case. It was this freedom and utility which got the Internet to catch fire the way it has.
Video is so massive compared to any other form of data that it requires new technology and new rules. TCP/IP is the least obvious choice for sending video yet the most readily available. It maybe possible to build a P2P video network to rival YouTube but who wants that sort of traffic flowing through their home connection all day?
We are seeing the maturing of the Internet rather in the way we nolonger see open SMTP relays which were once left open to assist everyone's email.