This article explores the shifting dynamics of global economic growth, predicting a compression of growth differentials between the United States, Europe, Japan, and China. Key factors include the impact of tariffs on U.S. consumer purchasing power, evolving fiscal and economic policies abroad, and changing macroeconomic conditions. The analysis suggests a re-evaluation of non-U.S. assets due to these emerging trends, highlighting the increasing attractiveness of these markets in the global investment landscape.