A 2,500-mile radius in Asia contains half the world's population (2017)
Total world landmass: 57,510,000 miles squared.<p><a href="https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_area" rel="nofollow">https://en.wikipedia.org/wiki/List_of_countries_and_dependen...</a><p>2500 miles * 2500 miles * pi = 19,630,000 miles squared<p>So that area represents about (19.63 / 57.51 ) 34% of the total world landmass. So 50% of humans live in 34% of the landmass. But harsh and relatively uninhabitable lands make up a large portion of the earth's landmass<p>( antarctica - 5,400,000, siberia - 5,100,000, canada - 3,511,023, australia - 2,947,336, , greenland - 836,330) = 17.8 million square miles.<p>So the habitable areas are 57.51 - 17.8 = 39.71 million miles squared.<p>So that circle represents ( 19.63 / 39.71 ) 49.4% of the habitable land.<p>So in the end, about 50% of the world population lives in about 50% of the world's habitable land.<p>Astounding huh? It's amazing what some math and common sense and understanding of geography takes away from a clickbait article based on a reddit post.<p>As others have noted, that area is also primed for human habitation due to tons of fresh water rivers flowing from the tibetan plateau and rich fertile land along with year-round planting seasons due to its proximity to the equator.