So in this respect, a person is broadcasting from a location they own and control alone, but rather than the only people within physical range being able to detect, tune in, and hear it, that signal is available to anyone who has the digital address of that signal.
Each person has a broadcasting tower of their own. Anyone with the digital address of that broadcasting tower can "hear" the content broadcast from it, eliminating physical limitations like mountains or radio wave range.
Person = Person
Broadcasting Tower = npub address
Speakers = relays
Right?