@ZaneSelvans I'd look into ways to encourage the mixing of people from different cultures. It doesn't necessarily require mixing the poor and the rich but maybe that's the practical solution. How to do that? I don't know. Ideas that crossed my mind include: excellent public transportation, mixed residential/business areas, free basic services like healthcare and education, high taxes on the private versions of these public services, making all neighborhoods funded evenly by nationwide budget rather than local taxes, forcing elected officials to live in the poorer neighborhoods, ...