Encryption has become pervasive in modern communication, yet it is clear that we still need more to properly protect the things we are doing. Does the quantum i

Encryption has become pervasive in modern communication, yet it is clear that we still need more to properly protect the things we are doing. Does the quantum infrastructure that you are proposing not imply an almost complete replacement of the current global communications network with quantum channels, or at least to shadow it with a co-extensive one for key distribution? Is that close to being feasible for mobile and other radio-connected devices?