There's a moment in James Vlahos' piece--"A Son's Race to Give His Dying Father Immortality"--that made me tear up the first time I read it. Vlahos has just finished a prototype of a chatbot that speaks much like his father, who's dying of lung cancer. The system has been trained on hours and hours of recordings of the father's life story. It actually works, and now, after demonstrating it to his parents for the first time, Vlahos has a question for his dad. "Does it give you any comfort, or perhaps none--the idea that whenever it is that you shed this mortal coil, that there is something that can help tell your stories and knows your history?"