Michael Wallis is the author of "The Lincoln Highway," which goes from San Francisco to Times Square. Stephen assumes it's for shuttling gay people to Broadway musicals. (5:37)
When Charles Kaiser suggests that New York is a gay metropolis because of critical mass, Stephen understands that to mean it's like a dangerous nuclear bomb. (5:22)
Frank Sulloway's research indicates that elder siblings have a greater chance of being the smarter sibling. As the youngest of 11, Stephen takes issue with that. (4:28)
The Bohemian-Gay Index is part of a new series of statistics that indicates that gay people raise property values in a neighborhood -- not the San Francisco phone book. (5:07)
David France tells Stephen about the science that further supports the theory that homosexuality is genetic, but must admit that not all the science has been scienced. (6:30)