I do not like the current definition of Tokyo has being Tokyo Prefecture and all adjacent prefectures. Tokyo itself is made up of wards—each of those considered cities in their own rights—and even a countryside. People living at the far end of Saitama or China can hardly be called Tokyoites. You can't even call someone that lives in China a Tokyoites without being offensive.
Jakarta now has the population of California. It's hard to imagine. What defines 'Jakarta'? How do we say they all are in one city instead of a region, or in several adjacent cities, etc.?
is manila a city? chongqing?
is thu duc really a separate city from ho chi minh?
where does bangkok end and nonthaburi start?