Is it really? If you look past Western Europe and North America it is definitely not. And even there you can see things, like that spike in Bay Area. Except for

Is it really? If you look past Western Europe and North America it is definitely not. And even there you can see things, like that spike in Bay Area. Except for population size, there seem to be at least two more major factors at play: wealth and English proficiency. Even in Europe they are clearly visible: Oslo and Sofia are about the same population, Rome is at least three times more populated than Edinburgh. So, no, not really.