Best quote: "When Alice doesn't need "a neighbour" but needs that neighbour, the one who watched her kids that time, the one who knows she's allergic to peanuts. The relationship is specific, and specificity is the enemy of fungibility."

The memory of what the community was or had eventually vanishes. Jane Jacobs (referenced in the article) was the reason that I learned that the sidewalks in NYC's West Village weren't always so narrow. They were made narrow to accommodate more cars, which in some ways don't help geographic community strength.