Outside of the cellular telephony world, this seemingly simple occurrence doesn't really happen -- typical wireless signals have to take turns when it comes to listening and transmitting.
The point of this shaggy-dog story is simple: how in the world were my friends supposed to know all the things they needed to know to keep that system running safely and reliably?
The broader issue is simple: the developed world has too much debt and to reduce this debt, they want to create inflation and depreciate the value of their currencies (thereby reducing the value of the debt).