True, though there's a lot going on. Urban design used to force more chance interactions and we're more physically isolated now, among other things. Sit next to

True, though there's a lot going on. Urban design used to force more chance interactions and we're more physically isolated now, among other things. Sit next to someone on the bus or walk alongside them to the well? Strike up a conversation (unless you're British in which case I guess you sit on the bus in silence). Drive alongside them on the way to the grocery store? Not much chance to say hi there.