If you look at it that way, the interconnectedness fostered by the Silk Road affected way, way more people than just those rich enough to buy silk, just as today's globalization offers both promise and threat to each of us. Next week, we'll talk about Julius Caesar and in what situation, if any, it's okay to stab your friend in the gut. Until then, thanks for watching. Crash Course is produced and directed by Stan Muller. Our script supervisor is Danica Johnson. Our graphics team is Thought Bubble. And the show is written by my high school history teacher, Raoul Meyer, and myself.