Nick Hornby has written dozens of delightful books, from High Fidelity to Funny Girl. His screenplay for Brooklyn is nominated for an Oscar. He talks with Tricia and Greta about the fine line between passion and obsession, the importance of characters at a crossroads, and why it's so important for artists to collaborate. He also gives us some Shakespearean homework. Plus, Tricia and Greta share a couple of nerd confessions.