When mayors get together they probably have better conversations and have better notes to share about running different cities, and just do what suits. Basically, like when you combine all the religions and take the best bits, you should be able to combine all the cities and take the best bits, the information, the tried and tested things.
M.I.A.I think I have to expand my creativity a bit, because it's difficult for critics to be, "Oh, this person writes their own lyrics and sometimes writes their own beats and sometimes makes her own videos." They funnel me through, "Oh, is it as good as blah-blah's record, which has had 50 million writers on it?"
M.I.A.