How did Immanuel Wallerstein predict the fall of the American empire?

The article reviews the prediction of sociologist Immanuel Wallerstein about the decline of American hegemony, which appeared in an interview on C-SPAN in July 2002, and in his article in Foreign Policy magazine titled "The Eagle That Crash-Landed." Wallerstein argued that the position of American hegemony is declining, and that the United States has engaged in more military interventions since 1991 than it did between 1798 and 1990, describing this as the strategy of a declining hegemon in denial.

The article reviews the prediction of sociologist Immanuel Wallerstein about the decline of American hegemony, which appeared in an interview on C-SPAN in July 2002, and in his article in Foreign Policy magazine titled "The Eagle That Crash-Landed." Wallerstein argued that the position of American hegemony on the global stage is declining, and that the United States has engaged in more military interventions since 1991 than it did between 1798 and 1990, describing this as the classic strategy of a declining hegemon in denial. The article notes that the moment of the interview was ideal, as Wallerstein had been writing about the decline of hegemony since the 1980s, but believed that America still had a chance to manage its decline effectively. It observes that great powers become hegemonic through economic, political, and military factors that ultimately erode that hegemony, and that the decline began long before September 11 with economic recession.

How did Immanuel Wallerstein predict the fall of the American empire?