That's a little harsh, isn't it, no5no5? I don't think Connie suggested that schools be "segregated", and there is a legitimate question about what the balance should be between making special provision for children who have different special needs, such as being ESOL learners. Indeed, here in the UK, I have the impression that gifted pull-outs are rare, compared to other pull-outs.
About the IQ scores, I think one reason why older people with very high scores are not as unusual as we'd expect is the switch from ratio IQs to deviation IQs, which has indeed made high scores much rarer than they used to be. Another is people's tendency to misremember and exaggerate! These days, many children with IQs under 140 clearly do benefit from differentiated instruction.
