- "Capitals tend to attrack [sic] most inmigration."

- "Not all capitals - it is a question of policy."

- "Interesting. So in Japan people inmigrate [sic] more uniformly?"

... then you don't answer but proceed to compare capitals of the world to each other. I thought we were comparing countryside immigration to capitals vs to the rest of the country. Not between countries.

But narag was talking about immigration between countries: "...had more than a third of inmigrant parents, including Russia, Iran, South America (most) and Morocco". I understood narag's point as "that's a fast demographic change, but inevitable in any modern large capital city, as capitals tend to attract immigration".

My counterpoint was that there is nothing inevitable about it, and that it is a policy choice. Tokyo is a very large, very modern city with a massive economy, yet it has a very modest foreign population and is recognizably Japanese almost everywhere you go (which results in being really safe even at night, almost completely litter-free, and certainly a great experience of Japan for a visiting tourist).

A misunderstanding then. I just meant the difference between big cities and the rest, similar to Paris/rest of France.

The difference you meant was between Spain and Japan. Only 14 km of sea separate our mainland from Africa, with little boats full of desperate people crossing every day. Also we have two towns in continental Africa with land borders with Morocco where border barriers are sometimes just rammed.

But that's just the most dramatic side of it. Most immigrants simply cross the borders as tourists and stay for work. I guess Japan is a little different.

FWIW, Madrid is very safe at night. Only a few neighborhoods, far from downtown, are dangerous.

Edit: immigrant, note taken. Inmigrante in Spanish.