A linguistics doctoral student who Alice is advising as he finishes his dissertation research. Alice and Dan are close friends in addition to their student-teacher relationship, and she insists on staying on as his advisor even after her worsening Alzheimer’s symptoms force her to step down from teaching and speaking engagements. Alice attends Dan’s graduation, but her memory has worsened and she no longer remembers him. Dan tells Alice how much he appreciates what she’s done for him and that she is the best teacher he ever had. When Alice thanks him and tells him she’s glad he’ll have good memories of her, he gives her a paper printed with everything he said so she can read it and remember him.