" Checking a box on a form for race—"Caucasian," "Hispanic," "African-American," "Native American," or "Asian-American"—is untenable and ridiculous. For one thing, "American" is not a race, so labels such as "Asian-American" and "African-American" are still exhibits of our confusion of culture and race. For another thing, how far back does one go in history? Native Americans are really Asians, if you go back more than twenty or thirty thousand years to before they crossed the Bering land bridge between Asia and America. And Asians, several hundred thousand years ago probably came out of Africa, so we should really replace "Native American" with "African-Asian-Native American." Finally, if the Out of Africa (single racial origin) theory holds true, then all modern humans are from Africa. (Cavalli-Sforza now thinks this may have been as recently as seventy thousand years ago.) Even if that theory gives way to the Candelabra (multiple racial origins) theory, ultimately all hominids came from Africa, and therefore everyone in America should simply check the box next to "African-American. "
― Michael Shermer , Why People Believe Weird Things: Pseudoscience, Superstition, and Other Confusions of Our Time