It is a relevant argument since both Hong Kong and Singapore have few natural resources, like Japan, have a much higher population density than Japan, which means there are less resourses to go around, yet both have much stronger economies. Singapore 's economy isn't service based, It's main source of revenue is exporting electronics and chemicals. They get those things by importing the materials, then refining them, then exporting them.
70.1% of Singapore's economy is service based. And I don't get why this is so complicated. Those tiny countries have a service that can support that many people. Japan has its own Hong Kong in Tokyo, we have New York City. But Japan cannot support 120 million people doing what Hong Kong does. It's not even logical. Population density has absolutely nothing to do with this argument, lol.