In his book "Earning the Rockies," author Robert D. Kaplan emphasizes how major cities like Chicago overshadow smaller American cities such as Springfield. He highlights the trend of urban centers becoming the primary focus of economic and cultural interaction, connecting more deeply with global networks rather than their surrounding areas. This shift illustrates a transformation in American dynamics, where city-states emerge as pivotal players on the world stage.

Kaplan suggests that while these changes could spark inspiration in smaller cities, Springfield, in particular, falls short of inciting motivation or innovation. The increasing global interconnectedness tends to exacerbate local divisions and challenges, leaving smaller municipalities feeling marginalized. Through this lens, the book discusses the intricate relationship between geography, global forces, and the implications for smaller American cities.