Originally Posted by blackcat
I believe that there are many kids who do look very advanced as newborns, and they actually DO "even out". I'm sure there is a correlation between infant developmental milestones and later cognitive ability, but it probably isn't very strong or predictive.

This.

As we continue to add to our primitive understanding of the brain, and find that, for instance, musical training increases cortical thickness, it becomes increasingly difficult to accept the notion that the brain's properties are immutably established prior to birth.