The year is 2059. I have always dreaded retirement: the sudden release from commitment, the odd opportunities to spend my afternoons in pajamas. What am I supposed to do with the free time? Pick up another hobby, probably. Read more books — more non-fiction, definitely. Maybe even write a novel (plot, genre and characters to be imagined at a much later time). Take care of my granddaughter when she’s born (this one’s a no-brainer). Mentor med students? Teach some courses? Sleep. A lot.