In episode 4 of the Ripley miniseries with Andrew Scott, he returns to Atrani from San Remo, clears out the villa, and then goes to Naples and books six first-class tickets on the train to Rome. Why does he book so many tickets?

In the scene, Robert Oppenheimer’s astrophysics lecture, which discusses the balance of a star’s fiery reactions and gravity, attracts an increasing number of students. He explains that if the star’s furnace cools, gravity takes over, causing the star to contract. This concept of increased densit...