regression to the mean and intelligence

You seem to be retarded so let me explain. The reason why claiming that regression to the mean also applies for IQ is dumb is because intelligence is not purely determined by genetic factors, even gray matter density in certain region of the brain, which is a major correlate of intelligence is partly environmental. This is why the concept is misapplied here. Not to mention that different subgroups within a racial group have different mean IQ scores.