“What, I wondered, was the point of me? I contributed nothing to the world, absolutely nothing, and I took nothing from it either. When I ceased to exist, it would make no material difference to anyone. Most people’s absence from the world would be felt on a personal level by at least a handful of people. I, however, had no one. I do not light up a room when I walk into it. No one longs to see me or to hear my voice.”