Listening to the part on the Flynn effect, I wonder, without having done any prior research on this question (yet), whether there is a measurable difference on formula fed babies and Breast fed, as well as a measurable difference in babies fed with the modern (much better formulas) vs the older formulas vs animals milk (vitamin enriched and not), and if that could have some impact on this effect. <br>Maybe not, but it does make sense (and I believe research supports) that nutrition, especially in the first 2 years or so, could have major effects on brain development.