Well probably just a tiny fraction. But we have been trying since the beginning of time for that most intimate connection, the sharing of a thought or an idea or a feeling.
Animals do it.
People do it. And now even machines do it. We strive to communicate with each other despite the obstacles or the odds. From an image traced in the sand with a stick, to the world of cyberspace where there is virtually no time or distance between those communicating, our need to express, to learn, to teach, to understand, to know, seems an imperative. The history of communication is the history of our civilization.