“He’s a wonderful little boy, yet we all know that he will plateau at a 3rd, or maybe 4th, grade level.”, the district psychologist said to me, without a hint of shame.

Sometimes I think we just have to wait until the ones who are stuck in their old ways of thinking move on to a better world. This idea of limited intelligence is what he was taught. This is what he experienced. And, it seems to me that he has not allowed his own thinking to expand beyond the 1970s.
Who has plateaued?