Nearly 2 million people started college in 2002—1,630 of them at Harvard—but among them only Mark Zuckerberg is worth more than $10 billion today; the rise of the super-elite is not a product of educational differences. In part, it is a natural outcome of widening markets and technological revolution, which are creating much bigger winners much faster than ever before—a result that’s not even close to being fully played out, and one reinforced strongly by the political influence that great wealth brings.
Laura Shaw on 03 Jan 12"...evidence that by virtue of limiting enrollment in public preschools to low-income students, classrooms tended to have high proportions of students with low skill levels, since economically-disadvantaged children often enter school with lower language abilities than their higher-income classmates."