I'm tempted to write a javascriptlet that takes you to "you": in reality, it would just use geolocation to detect your continent, select a random person on that continent, and "scroll" you to that person, just to give you some scope of the sheer number of other people as you pass them. I think it would reinforce the message about how damn many of us there are if you were reminded that one of those little cartoon figures... is you.