Why do people feel obligated to do favors for family members that they wouldn't do for friends? Today, our guest co-host A.J. Jacobs, who has been researching families for his newest book, helps James and Stephen answer that and other questions about families. Some of the topics include the fallacy of surnames being changed at Ellis Island, matriarchy and patriarchy in different cultures, and cheating at poker with your cousin in Las Vegas using Google Glass.This episode is sponsored by Squarespace.