> Really? How did past revolutions and terrorist attacks get organized? You realize most of world history existed before the Internet, right?

Yeah, of course. Broadcasting means one-to-many communication. Before modern technology, those things were organized using other kinds of one-to-many communication, such as in-person meetings, rallies, and through newspapers and other kinds of publications.

Movements aren't organized one-to-one like on a telephone, because that's a far slower way of spreading a message. It's also an unreliable medium, as the children's game "telephone" shows.