I think that this fellow is only focusing on the Internet as an alternative entertainment medium. Video streaming does go slowly across the Internet and seeing that he made his fortune through video streaming it would make sense that he would take this view. However, the things that make the Internet popular are not it's ability to emulate television, but it's ability to do things that television cannot. It's strengths include a low barrier to entry for both application deliverers and users, and a world-wide audience. Neither of those are available with cable.
The former could change, but it seems unlikely with the current market, cable is too tightly controlled.
The latter couldn't, at least not through Mr. Cuban's scheme. Seriously, what good would an app like Digg/Reddit be if it were only available on an intranet? Who would write a weblog if he knew only Comcast users would be able to read it? Consumers would be divided based on the cable service for which they paid. This seems like it would totally miss the point of the Internet.
The former could change, but it seems unlikely with the current market, cable is too tightly controlled.
The latter couldn't, at least not through Mr. Cuban's scheme. Seriously, what good would an app like Digg/Reddit be if it were only available on an intranet? Who would write a weblog if he knew only Comcast users would be able to read it? Consumers would be divided based on the cable service for which they paid. This seems like it would totally miss the point of the Internet.