I suppose the size of the territory and landscape is what makes all the difference. Macau is amazingly densely populated, but at the same time the same density

I suppose the size of the territory and landscape is what makes all the difference. Macau is amazingly densely populated, but at the same time the same density as Paris, but 1/3 of the size. It's an hour walk from one end to the other according to Google Maps. India on the other hand is just 10% denser than Belgium, but doesn't feel like that when you look at photos of its cities and trains loaded with people.