In the four minutes it probably takes to read this review, you will have logged exactly half the time the average 15- to 24-year-old now spends reading each day. That is, if you even bother to finish. If you are perusing this on the Internet, the big block of text below probably seems daunting, maybe even boring. Who has the time? Besides, one of your Facebook friends might have just posted a status update!

Such is the kind of recklessly distracted impatience that makes Mark Bauerlein fear for his country. "As of 2008," the 49-year-old professor of English at Emory University writes in "The Dumbest Generation," "the intellectual future of the United States looks dim."

The way Bauerlein sees it, something new and disastrous has happened to America's youth with the arrival of the instant gratification go-go-go digital age. The result is, essentially, a collective loss of context and history, a neglect of "enduring ideas and conflicts." Survey after painstakingly recounted survey reveals what most of us already suspect: that America's youth know virtually nothing about history and politics. And no wonder. They have developed a "brazen disregard of books and reading."

Things were not supposed to be this way.