The fourth comment down, and this is sorted by date not relevance, is almost isomorphic to this thread. I believe you didn't intend to start a "race war" (that's Dan's term, not mine), but the big subtext of HN's norms is being responsible not just for your intentions but for the effect your comment has on the thread.
It is not at all established that there are meaningful, coherent IQ differences between "races", and the process of hashing that out on this thread will be an attractive (and tedious) nuisance that will attract awful comments --- for instance, like one suggesting "brain size" differences between races are explanatory.
It is not at all established that there are meaningful, coherent IQ differences between "races", and the process of hashing that out on this thread will be an attractive (and tedious) nuisance that will attract awful comments --- for instance, like one suggesting "brain size" differences between races are explanatory.