That's insane! Pictures like that just prove why china has the largest population of any country in the world.
If indeed you could make a cod map of that there would be A LOT of rooftop firefights.
It reminds me of something like an ant colony lol.
I live on the east coast of Canada and I could NEVER imagine cities around here being that crowded, or anywhere in Canada for that matter.
I wonder if there are any cities in China that have those weird layouts like in Brazil where the cities and neighborhoods are basically stuck on the side of a really steep hill and they're set up in a "tier" configuration