The word "multicultural" deserves a better analysis. What exactly is a "culture" (besides that for many people it is an applause light), which parts of culture should we preserve and which are free for optimization, whether we can measure a utility function of a culture and whether that function itself is culture-specific, whether cultures can be extrapolated, how much can human cultures be different, et cetera.

The important part is that we are speaking about human cultures, which puts some limit on how different they can be. We should ... (read more)