The main problem with these kinds of exposition topics is that the steps involved are quite dense. By that I mean something like density of real numbers; between any two real numbers there are any number of real numbers. Then, the writer just chooses to expand on those steps that they are comfortable with, or the ones that get more eyeballs. I mean, why not explain how signal travels across various media like air, underwater cables, to and from satellite etc?
Now, don't get me wrong, I am not saying this is useless. I am just saying that if one chooses to give a 30k feet perspective, they had better stay there and not bounce between 40K and 10K.
I’m not seeing not sticking to 30k is really detrimental to how most people would likely consume a doc like this, which would probably be to sample various parts to find what they’re interested in and then dig in.
Now, don't get me wrong, I am not saying this is useless. I am just saying that if one chooses to give a 30k feet perspective, they had better stay there and not bounce between 40K and 10K.