When parents take measures to select for beneficial genetic traits in their children (e.g., by selecting MENSA members as sperm donors), who benefits? I take it that the intuition is that the children benefit. There's something weird about this idea, however. It's not as though we are conferring intelligence or good looks on a child who would otherwise be ordinary; rather, we're trying to ensure that the ordinary child never comes into existence in the first place.
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