Island." That was a walkable environment. SPECK: Well, it had very little to say about urbanity. But the other two, and all the shows on my TV that I was watching were either, you know, fun suburban environments or, you know, "Streets of San Francisco," "Mannix," "Hawaii Five-O," "Dragnet." It was the city but it was one thing: crime. Now, there was one exception, which is Mary Tyler Moore. And it's a strange exception. I don't understand its role. But the reason I bring this up is think about the kids who are moving to cities today - the millennials. They grew up on "Friends," on "Seinfeld," on "Sex and the City"... SIMON: Upper West Side people. SPECK: Yeah, it was all New York. SIMON: They want the diner. They want the coffee shop. But here's the problem: millennials grow up. They start having families and they start looking for more space and good schools. And the problem is in walkable neighborhoods, the real estate gets more expensive. So, for more space they often have to move out of the city. And for that matter, their kids become of school age and they have to look for good schools. SPECK: Well, the question really isn't just who our cities can serve, but can our cities thrive? These cities that currently don't have anyone in them have to start somewhere. And typically for those people schools are not an issue - but they become an issue very quickly.