“… the wealthier the community, the more effective the first three items above (for-profits, government and locals) will be in addressing their problems. Therefore, if you want to find opportunities to provide help that isn’t already being given, you probably need to look at the world’s poorest communities - but doing that probably means helping people who are very far away and very culturally different from yourself, and you have to find opportunities that haven’t already been found by the big foundations or other donors.”