Re: QC Hype Watch: Quantum cryptography gets practical

R. A. Hettinga wrote:

Two factors have made this possible: the vast stretches of optical fiber (lit and dark) laid in metropolitan areas, which very conveniently was laid from one of your customers to another of your customers (not between telcos?) - or are they talking only having to lay new links for the "last mile" and splicing in one of the existing dark fibres (presumably ones without any repeaters on it)