Seaman: Demographics provide discrete boxes to put people in and help us make the world meet. But when it comes right down to it, things like your age, gender and race really say precious little about you. Culture is more predictive of what they're going to do because of how predictable culture is to us. We don't self-identify by demographics but by our communities.
Today, Marcus Collins ("For the Culture") says that if you want to understand someone, you can learn much more from their tribal communities than their demographics.