I'm just reading this thread a little after looking into 5G. Irving actually started it before my curiosity of 5G. I'm not sure how twisted light is different than the current muxxing, except maybe more compact? I do know 5G might be awesome. A more worldly friend reminds my how slow USA is in catching up. Cars, medicine, tech. I do know that fiber to the home has fallen out of favor with Comcast, and they are reallocating resources to the cities that are going to launch 5G first. Much like they did trying to get ahead of Google fiber. The part that might slow the 5G is the number of cell sights needed to make 5G work. As mentioned, you'll need to be closer to a tower. Turns out some cities are making it expensive to deploy new towers. Same 5G experts also reminded people that 15-25 meg is what most people need.

https://www.forbes.com/sites/washing.../#5b34fa9afd7f