"Somehow we afford paving streets in cities" There's two explanations: 1. Previously, the streets were simply pavement and a ditch. Now they're being upgraded

"Somehow we afford paving streets in cities" There's two explanations: 1. Previously, the streets were simply pavement and a ditch. Now they're being upgraded to pavement-sidewalk-internaldrainage-internet-power. It's more expensive and potentially unsustainable. 2. We can't afford it, b/c we're relying on all of these bonds. If _every_ block in the city requires a bond that the property tax from that block can't pay, eventually the banks will recognize that this city isn't a good debitor. But furthermore, is this the best use of funds? Is adding a sidewalk worth 1.5m, when it could be spent elsewhere?