Who cares? Just use some Ubiquiti point to point devices and be done with it.
> Imagine pointing a light beam the width of a chopstick accurately enough to hit a 5-centimeter target (about the size of a US quarter) that's 10 kilometers away; that’s how accurate the signal needs to be to be strong and reliable.
Taraa is what is left of Google's Internet from balloons project as I understand.
Beyond that, satellite optical communications is a potentially very big thing.