I’ve never seen a better rationale for why Twitter works than what Chris Corrigan (who is not talking about Twitter, btw) has to say in the paragraph he wrote here.

Excerpt:

Control and certainty are illusory. All we have is our own meager dependance on each other.

The more we are related and understand one another, the safer we truly are, because we are better able to address the vagaries of the world if there are many eyes, hearts and brains making sense of a situation.