Two groups of cell towers using the same piece of spectrum interfere with each other in the same way as those walls. The fact you don't understand what the wal

Two groups of cell towers using the same piece of spectrum interfere with each other in the same way as those walls. The fact you don't understand what the walls scenario is identical to what you are stating is okay is depressing. It is only when anyone is able to produce a good and distribute it, given sufficient capital, that your mental model is appropriate. No one can simultaneously control the same spectrum in the same geographic area without creating interference with each other. Retail stores? Sure, what you are saying makes sense. Things with natural monopolies? Not so much.