Hugo nodded, "Yes, in theory—because the Earth is round, the best satellite angles are from vertical shots. But that also means each satellite has limited coverage, and you'll need enough satellites to cover the globe.

"It's like trying to envelope the world in a ball of thread to cover every inch of the world, with one satellite passing through orbit every few dozen seconds. Of course, the orbit will extend if you don't have enough satellites."

Charlie then asked, "In that case, how many sate