As an engineer worked for more than 10 years in cellular telco area, I always feel a bit magic when the network data transfer works OK. It's not rational, of c

As an engineer worked for more than 10 years in cellular telco area, I always feel a bit magic when the network data transfer works OK. It's not rational, of course: just knowing how much things regularily goes wrong in a low-level net makes me feel that way.