Yes, but when exactly?
Years ago we were told by British Telecom (the days of yellow vans) that it was going to change the world.
As an ex-BT person I'd heard all this many, many times from countless messages by countless people, year after year.
21CN is also going to change the world (well, certainly with the workforce anyway), eventually, sometime. We will all be I.P.'d up and no doubt throttled back for mis-use, then well and truly I.Peed off.
It may be bad for one's health but a large pinch of salt may need to be taken with this latest (and rather frequent) announcement about video-conferencing.