When I was about five years old, I visited New York City with my family to see my father at work. My father worked in the Burroughs building, which is a skyscraper. The word “skyscraper” was not part of my vocabulary at the time. We were standing on the sidewalk and my mother pointed upwards and said, “Look at the skycraper.” As she said this, a jet flew overhead with a tail of smoke behind it. I thought she was pointing at the jet and that the jet was scraping the sky. It was years – many years – before I learned that “skyscraper” refers to a tall building and not a jet. Obviously, I’m embarrassed about this misunderstanding.