Mina left the lab with a printed route in her pocket. It wasn't useful for navigation. It led to a cul-de-sac with three sycamores and a mailbox painted the wrong shade of blue. A man named Rafael was sitting on the steps, reading a letter he had written twenty years earlier and forgot he had mailed. They talked until the streetlights came on. Rafael said his life felt less solitary, as though something outside had nudged his days back into order. He could not say whether that something was technology or chance.