I have been increasingly conscious, for the last 10 years or so, of deaths among my contemporaries. I am about half the age of Oliver Sacks. In the past year

I have been increasingly conscious, for the last 10 years or so, of deaths among my contemporaries. I am about half the age of Oliver Sacks. In the past year I've gone to two funerals for people younger than I am. It's a very poignant reminder of your own mortality when people your age or younger pass away.