Designing something to work and designing to not fail are entirely different endeavors and someone qualified for one is not necessarily qualified to even evaluate the other.
Pure coincidence, but I had lunch today with a local developer who will be putting up a building in downtown Amherst. They are planning on running fiber to the building, because they want to build for the future and the people they want to sell to (like me in a few years, when we downsize after my kids are in college) want fast Internet.If I gaze into my crystal ball... I see nothing but more and more demand for bandwidth.
We've got streaming Netflix now, at "pretty good" quality. We'll want enough bandwidth to stream retina-display-quality to every family member in the house simultaneously.
Then we'll want to stream HD 3D surround video to our Oculus Rift gizmos, which is probably another order of magnitude in bandwidth. To every member of the family, simultaneously. While our home security cameras stream to some security center off-site that is storing it as potential evidence in case of burglary or vandalism....
Then... who knows? Every prediction of "this will surely be enough technology" has turned out to be wrong so far.