Thank you! This was a very informative documentary. Now I have to go and set a tower on fire.

   

The video gets one thing wrong at the beginning. "Bandwidth" is not the number of available channels, it is the maximum amount of data that a frequency can carry. One frequency band can carry quite a lot more than one voice conversation on that frequency, especially since cellular networks transitioned to digital. The video even corrects itself at around the 4 minute mark.

Another thing they don't mention is that 5Gs' higher frequencies, while they get absorbed by just about anything, they also require more power and consequently generate more heat than 4G/LTE. So they not only require more towers to cover the same area, they need more power to communicate. So does your phone. Battery life will suck!

But otherwise, good video!