If you read the study you will see that NONE of the children had serious precursors to brain damage, like fetal alcohol syndrome or prenatal damage of any sort.

It was a screening criteria for both the wealthy and poor alike.


The key really seems to be stimulation and the level of input in the early years.

Rich kids are just given WAY more stimulation with greater variety.

Poor kids are more likely to lack in all areas of stimulation.

It's not hard to see.

It's also easy to fix...

Now, do we, as a society, care to bother?