Lafiel on 31 January 2013
on a genetic level intelligence is distributed very evenly among humans - we don't become more stupid from people that are phenotypically stupid reproducing faster, as they usually have the same genetic preposition as "intelligent" people, but they just lack the effort/upbringing/circumstances to bring that out in them
there are individuals with genetic defects/mutations/alterations that have a lower genetical base level of intelligence, but these people can very well have more intelligent offspring even if two of them are having children
