Human emotions and contact in the far future.
"Ethan begins moonlighting at the touch center on weekday mornings. Off-peak hours. He robo-cabs it there and back alone. Still, working there is a leap from the isolation of his apartment, and it’s the first time he’s felt inspired in years. He knows he’s not handsome by conventional standards, but he can give a mean hug and they never have enough guys to work at places like this anyway."