Carlos Rivera, a Chilean physicist at the Catholic University of Santiago, is sitting alone at the Hotel Continental in Buenos Aires, scribbling formulas on a paper napkin. A curious waiter says to him, “I know another man with this habit. He’s a customer who comes in every now and then for a meal or a coffee. His name is Ettore Majorana. He was a very important physicist and fled Italy a long time ago.” Ettore is said to be 54 years old. Rivera doesn’t immediately follow up on the lead, and when he tries, the waiter is no longer reachable. This isn’t the first, and it won’t be the last, sighting of Majorana in Buenos Aires.
