Again, it all boils down to population density. Again, what color is South Korea? Dark Purple, the same as Japan. Still don't "egt it", do you?!?
You don't seem to grasp the idea of population density? Would you build a rail line across Antarctica? Why not??? I am not talking about the population density of penguins but of HUMANS!<quoted text>
Colour , South Korea, Japan? Please explain what you're getting at, because it ain't workin'.