[seastay]

It might be more costly to install and maintain mmwave transceivers and high gain boresighted antenna systems on poles every block to go around obstacles than running a mile long fiber cable underground, overhead or where ever . . When it rains or is foggy , the connection is lost unlike fiber, and as well it might be just marketing ploy to say that a mmwave RF system has more bandwidth than fiber. Light theoretically has more capability than a lower RF carrier such as mm wave , it just come down to the hardware available , and light is years ahead in terms of low cost commercial hardware than mm wave, maybe light years ahead !

[Paladin2]

I’ve found that wireless ends up requiring more wires. The last 15 feet is great though.

[bigbob]

Fiber will be the backbone, but wireless is much cheaper and more flexible to bridge fiber into the home.

[ProtectOurFreedom]

Light suffers from scattering by fog particles. Bandwidth drops to zero in fog. You need hybrid RF/Laser systems for high availability - mm RF attenuated by rain drops and laser attenuated in fog. It isn’t very often you have both simultaneously. Light also suffers from being line-of-sight point-to-point. I worked for a free space optics company ten years ago and we were transmitting 40 Gbps over laser beams up to 15 miles.