For four centuries, a 16th-century navigator's tool has quietly shaped how the world understands itself, shrinking Africa to a fraction of its true scale while inflating the importance of northern landmasses. This week, the United Nations voted to endorse a corrected world map — one that shows Africa's 11.7 million square miles as they actually are — with every member nation in support save one: the United States. The vote is less about cartography than about perception, and the long-understood truth that the image of a thing determines how the world chooses to value it.