So it's a very brief foray into the history of the categories used in the census that helps to show how Americans come to see and identify themselves in certain ways. And I hope you've seen that these categories also always have represented a kind of mix of biological facts. Biological facts tend to be the ones associated with what we think we see when we look at different peoples, what we see as difference and what we see as similarities, how we make sense of all these things. And so it's both biological ideas and cultural ideas that shaped these categories in the past, but have really proved inadequate to capturing the changing realities of the American people.
