And that's one of the reasons I think it's so important to study history. History reminds us that revolutions are not events so much as they're processes. That for tens of thousands of years, people have been making decisions that irrevocably shaped the world that we live in today. Just as today we're making subtle, irrevocable decisions that people of the future will remember as revolutions. Next week we're going to journey to the Indus River Val- whoa. It's very fragile, our globe. Like the real globe.