How can Google Fiber make a difference since most of the mediating wires out there are copper?
Because all global and most local infrastructure has a fiberoptic backbone these days. If fiberoptics is available in your neighborhood there will be a fiberoptic connection all the way &quot;to the web&quot;.
A copper infrastructure just doesn't provide the bandwidth.
(And by the way, the link provided does not resolve in Europe, at least not for me)