Yet you have changed with the growth of your son. Medicalized, bloody, and enacted to the sound of screaming and the smell of disinfectant, his birth was like a death. It shook you. And, slowly, it unlocked forgotten capacities for feeling. Fatherhood has taught you the lesson that, even in middle age, love is practicable. It is possible to adore those newly come into your world, to envision, no matter how late in the day, a happily entwined future with those who have not been part of your past.