To Brooks, this characterization seems limited. "Reading through the anniversary commemorations, you feel the gravitational pull of the great Boomer Narcissus. All cultural artifacts have to be interpreted through whatever experiences the Baby Boomer generation is going through at that moment. So a book formerly known for its youthful exuberance now becomes a gloomy middle-aged disillusion." He laments how the book's spirit seems to have been tamed by the professionalism of America today and how it has only survived in parts. The more reckless and youthful parts of the text that gave it its energy are the parts that have "run afoul of the new gentility, the rules laid down by the health experts, childcare experts, guidance counselors, safety advisers, admissions officers, virtuecrats and employers to regulate the lives of the young." He claims that the "ethos" of the book has been lost.