One of Senator Barack Obama’s persistent themes, since the drawn-out US presidential campaign began in the snows of 2007, has been the need for parents to turn off the television, put away video games, and spend more time reading to and talking with their children. Although no candidate would be dumb enough to call potential voters dumb, Obama is in fact referring to the dumbing down of American culture over the past three decades — a phenomenon that can be measured by everything from a sharp decline in book and newspaper reading to the mediocre performance of American students on international assessments of proficiency in science and mathematics.Obama’s approach is notable and novel because he is connecting the dots between the failings of formal education and a more general level of public ignorance, anti-rationalism and anti-intellectualism.