Do you know anything about radio at all? If you do, tell me how efficent CW is compared the other modes. Hell, how about SSB?
I don't believe that was the point, which seemed to be that the allocation of the bandwidth to ham radio is inefficient, meaning there are better uses for the bandwidth. That's what I took anyway. BTW, what does CW stand for?
Just cellular transmission. The tiny slice of bandwidth that our federal government "gave" the cellular providers must be reused--thus the need for cells. This means that RF engineers, (can you hear me now?) must design systems to deal with extreme interference issues. Even using digital CDMA technology, there is a limited number of calls that can be carried on the tiny slices of bandwith that Clinton's administration busted up the 1900 MHz range into but that is an argument for another day.