Well I do not agree with you guys ... youtube and other streaming web sites are increasing bits/s rate with respect to resolution , encoding and time.
Here is some thing for you guys from http://www.videoaccelerator.com/
[quote=", post:, topic:"]
What Internet connection speed do I need for a smooth viewing experience of HQ/HD videos?
There are two elements that will dictate your viewing experience:
(a) Effective internet connection speed – This determines your potential data delivery speed and thus your potential viewing experience. This means that if your effective connection speed is lower than the video’s bitrate (see table below) then the video cannot possibly play smoothly. On the other hand, an effective connection speed that appears to be sufficient does not guarantee a smooth viewing experience since this is dependant on the video throughput rate.
( Video delivery (throughput) rate – This is the actual flow of data from the video servers to your PC. Think of the video throughput as water flowing to the top of a skyscraper. Having the largest pipes possible at the base of the building does not guarantee a strong flow of water at the top. The flow at the top is limited by the pipes located there and by the tap itself.
YouTube Standard Video YouTube High Quality video (HQ) YouTube High Definition video (HD)
Encoding MPEG-4 MPEG-4 MPEG-4
Aspect Ratio 4:3, 16:9 4:3, 16:9 16:9
Resolution 320*240 480*360 1280*720
Bitrate (mbit/sec) 0.5 0.9 2
Understand the technology and then talk