America has never had a very wide vocabulary for miscegenation. We say we like diversity, but we don't like the idea that our Hispanic neighbor is going to marry our daughter. America has nothing like the Spanish vocabulary for miscegenation. Mulatto, mestizo, Creole - these Spanish and French terms suggest, by their use, that miscegenation is a fact of life. America has only black and white. In eighteenth-century America, if you had any drop of African blood in you, you were black.

Of course, San Diego chooses not to regard the two cities as one. Talk about alter ego: Tijuana was created by the lust of San Diego. Everything that was illegal in San Diego was permitted in Tijuana. When boxing was illegal in San Diego, there were boxing matches in Tijuana; when gambling was illegal, there was always Tijuana.

We're looking at such enormous complexity and variety that it makes a mockery of "celebrating diversity." In the L.A. of the future, no one will need to say, "Let's celebrate diversity." Diversity is going to be a fundamental part of our lives. That's what it's going to mean to be modern.

But one does not forget by trying to forget. One only remembers.

I write about race in America in hopes of undermining the notion of race in America.

It's no surprise that at the same time that American universities have engaged in a serious commitment to diversity, they have been thought-prisons. We are not talking about diversity in any real way. We are talking about brown, black, white versions of the same political ideology.

When the Irish nun said to me, "Speak your name loud and clear so that all the boys and girls can hear you," she was asking me to use language publicly, with strangers. That's the appropriate instruction for a teacher to give. If she were to say to me, "We are going to speak now in Spanish, just like you do at home. You can whisper anything you want to me, and I am going to call you by a nickname, just like your mother does," that would be inappropriate. Intimacy is not what classrooms are about.