Corn in your car and your mouth, immigration, argumentation, the tilapia conspiracy.
Roger describes his many dealings with the city, including tearing up his street.
How to be a man, or any kind of person, what skills do we need?
Why kids make us think of the future, the spread of humanity, rebooting your body, do we want clones?
How retirement is changing, movement of people in history, mutability of history, argument vs. debate.