That's the title of a post on Slate referring to the idea that more than half of the world's population lives in a pretty tight circle. A Reddit user first posted the idea and then a professor did the math: it turns out that the tightest version of the circle excludes not only most of Japan, but also Java, an island in Indonesia that is home to more than 150 million people. If we expand to include these places, I wonder what % of the world's population really does live in Asia?
