Most people don't know shit and are perfectly happy and productive. They have no idea how their cellphone works, and only a vague idea how a regular phone works. They have no understanding of what's involved in a POTS network, how cable is laid under the sea, how comsats work, how comsats get to where they are, or what keeps them there, etc., etc. They haven't a clue, but it's OK, because they function well *in society*, because they are passable at what they do at work. Because since roughly the dawn of man, no one person is good at everything. But together, we have this whole civilization