1. how to choose a place to live, where is the best place to live, how to decide where to live, find the best places to live, where should i live 2. how to choose country to live, political system, fusion and penetration at the border, size, language and cultural violence, 3. cost of living comparison, 3X rent rule, taxes and profit 4. what is better urban or suburban, nature vs city 5. house vs apartment, parenting habits, which floor is best top middle or bottom walkability, walk score, walkable score, walkability index , bike score, e scooter score 6. natural disaster, people's sensitivity, tsunami and elevation, earthquake, landslide, volcano eruption, dormant volcano, forest fire, tornado, typhoon 7. industrial disaster, factory and storage, a space launch pad 8. war target, government quarter, airport, train station, factory, warehouse, bridge, military base, dams 9. protest and riot, government quarter, warehouse, symbols 10. common sense choice, 80/20 rule, probability, better vs. best, playing lottery