Schools themselves aren't creating the opportunity gap: the gap is already large by the time children enter kindergarten and does not grow as childre… - Robert D. Putnam

Intuitively, we know that neglect is not good for a child, and abundant evidence from neuroscience helps explain why: neglect during early childhood reduces the frequency of serve-and-return interactions and produces deficits in brain development that are hard to repair. A landmark randomized study of Romanian orphans who were institutionalized at an early age found that extreme neglect produced severe deficits in IQ, mental health, social adjustment, and even brain architecture.

Indeed, many of the corporate titans who dominate the American imagination live by an ideology of individualism that barely masks selfishness and an air of superiority. A philosophy of supreme self-reliance is common, and the pursuit of unfettered self-interest is considered a laudable ethic to live by.

People divorced from community, occupation, and association are first and foremost among the supporters of extremism.