[jazzyb]

The window of comprehension is a (probably) over-generalized concept. It was first mentioned in the 1985 paper "Intelligence and personal influence in groups: Four nonlinear models" by Dean Keith Simonton with respect to "leadership". The point in question from the abstract:

> Model 4, the intellectual stratification model, expands on the fact that the mean group IQ varies across different groups and, consequently, predicts a high correlation between the group mean IQ and the IQ of its most influential member, with a leader–follower gap of between 8 and 20 points, depending on the submodel.

The theory is that one's influence over others decreases as the intelligence gap between one and others increases. Simonton theorized that this is probably due to the increase in the complexity of ideas as IQ increases.

The reason I say it is probably over-generalized in this case is because I don't think influential communication necessarily counts as "meaningful communication".