Assuming it’s mostly accurate (it has errors in my area), you can find bits of Cairo that exceed 2.1 million in a 3km circle, and Mumbai I can get over 1.8 mill

Assuming it’s mostly accurate (it has errors in my area), you can find bits of Cairo that exceed 2.1 million in a 3km circle, and Mumbai I can get over 1.8 million. I’m in New Zealand and at that density you could fit our entire population in just over 2 of these 3Km circles. I feel irritated when people stand too close to me, but at the Cairo density there must be tens of people within a stone throw.